How many liters of H2O will be produced from 50 g of NaOH?

From 2NaOH+ H2SO4—> Na2SO4+2H2O

Answer:

7.2e+6 cm (7200000cm)

Explanation:

Hope this is the answer your looking for ;)

The amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

To calculate the molarity of Kool Aid desired, we need to determine the number of moles of Kool Aid powder and sugar in the package. Since the molecular formula for sugar is C12H22O11, we can calculate its molar mass as follows:

Molar mass of C12H22O11 = (12 * 12.01) + (22 * 1.01) + (11 * 16.00)

= 144.12 + 22.22 + 176.00

= 342.34 g/mol

Given that the package contains 4.25 grams of Kool Aid powder, we can calculate the number of moles of Kool Aid powder using its molar mass:

Number of moles of Kool Aid powder = Mass / Molar mass

= 4.25 g / 342.34 g/mol

≈ 0.0124 mol

Similarly, for the sugar, which has a molar mass of 342.34 g/mol, we can calculate the number of moles of sugar using its mass:

Number of moles of sugar = Mass / Molar mass

= 192.00 g / 342.34 g/mol

≈ 0.5612 mol

Now, to calculate the molarity of the desired Kool Aid solution, we need to determine the volume of water. Given that 1.06 quarts is equal to 1 liter, and we have 2.00 quarts of water, we can convert it to liters as follows:

Volume of water = 2.00 quarts * (1.06 liters / 1 quart)

= 2.12 liters

To find the molarity, we use the formula:

Molarity (M) = Number of moles / Volume (in liters)

Molarity of Kool Aid desired = (0.0124 mol + 0.5612 mol) / 2.12 L

≈ 0.286 M

To prepare 65 mL of the desired molarity, we can use dilution calculations. We need to determine the volume of concentrated solution and the volume of water needed.

Let's assume the concentration of the concentrated Kool Aid solution is C M. Using the dilution formula:

(C1)(V1) = (C2)(V2)where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Given that C1 = C M and V1 = V mL, and we want to prepare a final volume of 65 mL (V2 = 65 mL) with a final concentration of 0.286 M (C2 = 0.286 M), we can rearrange the formula to solve for the volume of the concentrated solution:

(C M)(V mL) = (0.286 M)(65 mL)

V mL = (0.286 M)(65 mL) / C M

So, the amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

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The total concentration of phosphate ions in an aqueous solution of magnesium phosphate is 4.2 M.

The balanced chemical equation for the reaction of dissociation of magnesium phosphate in water:

Mg₃(PO₄)₂(aq) → 3Mg²⁺ (aq) + 2PO₄³⁻ (aq)

From the balanced chemical equation of dissociation of magnesium phosphate: n(Mg₃(PO₄)₂) : n(PO₄³⁻) = 1 : 2

There are two phosphate ions in one molecule of magnesium phosphate.

c(Mg₃(PO₄)₂) = 2.1 M; the concentration of magnesium phosphate

c(PO₄³⁻) = c(Mg₃(PO₄)₂) × 2

c(PO₄³⁻) = 2.1 M × 2

c(PO₄³⁻) = 4.2 M; the total concentration of phosphate ions in an aqueous solution of magnesium phosphate

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To determine the order of the reaction with respect to each reactant, we must compare how the reaction rate changes when its concentration changes.

We have in experiment one the same concentration of reactants and a speed equal to 8.0x10^-4 mol/(L.s).

Now, in the second experiment, the concentration of BrO3 doubles, and the rest of the reagents remain the same. The speed is also doubled since 8.0x10^-4 x 2 = 1.6 x 10^-3.

The same happens with Br-, in the third experiment. The rate doubles as the Br concentration doubles.

So for these two reactants, the rate of reaction will be first-order, since as the concentration increases the rate increases in the same proportion.

Now, for H+ we have that by doubling the concentration the rate quadruples. This means that the reaction order is second order. When changing the concentration, the speed changes in order equal to 2

Answer:

the order of reaction will be:

Respect BrO3-: First order

Respect Br-: First order

Respect H+: Second order

Explanation:

I think the correct answer is B

Hope this helped u

i) Metals: A and D

Non-metals: B and C

ii) The valency of A is 1. This is because A has one valence electron, and elements in Group 1 (such as A) typically have a valency of 1 as they tend to lose that single valence electron to achieve a stable electron configuration.

iii)

A: Sodium (Na) - Symbol: Na

B: Chlorine (Cl) - Symbol: Cl

C: Oxygen (O) - Symbol: O

D: Calcium (Ca) - Symbol: Ca

iv) The compound formed by the combination of A and B: Sodium Chloride (NaCl) The compound formed by the combination of C and B: Oxygen Chloride (OCl2)

v) Element D (Calcium) is more active than element A (Sodium). This is because elements in Group 2 (such as D) tend to lose two valence electrons, which requires less energy compared to losing only one valence electron (as in the case of A).

vi) The elements that can lose the valence electron to become stable are A (Sodium) and D (Calcium).

Metals: A, B, C, D; Non-metals: None. Elementsii) The valency of A is 1 because it has only one valence electron.iii) The name and symbol of all the elements are:A - Sodium (Na)B - Chlorine (Cl)C - Argon (Ar)D - Calcium (Ca)iv) The molecular formula of the compound formed by the combination of A and B is NaCl. The molecular formula of the compound formed by the combination of C and B is BCl2.

v) A is more active than D because A is a metal and metals are more active than non-metals. A tends to lose electrons more easily than vi) The elements which can lose the valence electron to become stable are metals.

i) Metals: A and D Non-metals: B and C ii) The valency of A is 1. This is because A has one valence electron, and elements in Group 1 (such as A) typically have a valency of 1 as they tend to lose that single valence electron to achieve a stable electron configuration. iii) A: Sodium (Na) - Symbol: Na B: Chlorine (Cl) - Symbol: Cl C: Oxygen (O) - Symbol: O D: Calcium (Ca) - Symbol: Ca

iv) The compound formed by the combination of A and B: Sodium Chloride (NaCl) The compound formed by the combination of C and B: Oxygen Chloride (OCl2) v) Element D (Calcium) is more active than element A (Sodium). This is because elements in Group 2 (such as D) tend to lose two valence electrons, which requires less energy compared to losing only one valence electron (as in the case of A). vi) The elements that can lose the valence electron to become stable are A (Sodium) and D (Calcium).

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Answer:

To prepare a 0.5M 500cm^3 solution of MgSO4 from a 2.5M stock solution of MgSO4, you can use the following formula:

C1V1 = C2V2

where C1 is the concentration of the stock solution, V1 is the volume of the stock solution needed, C2 is the desired concentration of the final solution, and V2 is the final volume of the solution.

Rearranging the formula, we get:

V1 = (C2 x V2)/C1

Substituting the values we have:

V1 = (0.5 x 0.5)/2.5 = 0.1 L = 100 mL

This means we need 100 mL of the stock solution to prepare the final solution. To prepare the final solution, we can use a volumetric flask and add 100 mL of the stock solution to it. We can then add distilled water to the flask until the volume reaches 500 mL, giving us a 0.5M 500cm^3 solution of MgSO4.

Answer:

Various limitations of Mendeleev's periodic table are:-

Position of hydrogen - he couldn't assign a correct position to hydrogen as it showed properties of both alkali and halogens .

Position of isotopes - he considered that the properties of elements are a function of their atomic masses. Hence isotopes of a same element couldn't be placed.

In the d-block , elements with lower atomic number were placed before higher atomic number.

Explanation:

The molecular geometry of BrF5 is sqaure pyramidal and the approximate bond angle is 120 degrees which is c.

The total number of valence electrons in bromine pentafluoride (BrF5) can be determined by adding the valence electrons of each atom. Bromine has 7 valence electrons and each fluorine atom has 7 valence electrons, so the total number of valence electrons in BrF5 is:

7 (from bromine) + 5(7) (from five fluorine atoms) = 42 electrons

The molecular geometry of BrF5 is square pyramidal, which means that it has one central bromine atom surrounded by five fluorine atoms. The shape of the molecule is distorted from a perfect octahedron due to the lone pair of electrons on bromine.

The approximate bond angles in BrF5 are 90 degrees for the axial fluorine atoms and 120 degrees for the equatorial fluorine atoms. The lone pair on bromine occupies an equatorial position, further distorting the bond angles. Therefore, the correct answer is c. 120 degrees.

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In terms of genetics and genomics, linkage describes how closely genes or other DNA sequences are located to one another on the same chromosome. The likelihood that two genes or sequences on a chromosome will be inherited together increases with their proximity.

When two genes are adjacent to one another on the same chromosome, they are considered to be linked because they do not assort separately. Linked genes have a recombination frequency of less than 50%, whereas genes on distinct chromosomes assort independently and have a 50% recombination frequency.

According to Mendel's law of independent assortment, the alleles of two or more distinct genes are independently selected into gametes. To put it another way, a gamete's allele for one gene does not affect the allele it obtains for another gene.

For single-gene disorders, there are basically five different ways that inheritance can occur: autosomal dominant, autosomal recessive, X-linked dominant, X-linked recessive, and mitochondrial. Both simple multi-factorial diseases and complex single-gene diseases frequently exhibit genetic variability.

The user can track the frequency changes of two alleles over time using this simulation. While changes signify evolution, a population that does not change over time is said to be in genetic equilibrium. This simulation can be used to examine genetic drift, natural selection, and mutation.

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the molar mass of the gas comes out to be 137.28 g/mol.

We can apply the ideal gas law equation to determine the gas' molar mass:

PV = nRT

where P is for pressure.

V = volume and n = moles.

Ideal gas constant: R

Temperature is T.

Let's first translate the provided values into SI units:

Pressure (P) is defined as 720 mmHg, 720 torr, or 720/760 atm.

Volume (V) = 0.119 L/119 mL

85 degrees Celsius is equal to 85 + 273.15, or 358.15 Kelvin.

The ideal gas law equation is then rearranged to account for the number of moles (n):

n = PV / RT

n = (720/760) atm * 0.119 L / (0.0821 Latm/molK) * 358.15 K can be substituted for the original values.

Condensing: n 0.00512 mol

Now, we may use the following formula to determine the gas's molar mass (M):

M is equal to mass / moles.

Changing the numbers to: M = 0.545 g / 0.00512 mol

Putting it simply: M = 106.64 g/mol

As a result, the gas's molar mass is roughly 106.64 g/mol.

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1. The buoyant force on the beachball is 5N.

2. The mass of the chair is 6370 grams.

3. The  volume of the copper sphere is 53.88 cm³

Mass is described as the quantity of matter in a physical body. It is also a measure of the body's inertia, the resistance to acceleration when a net force is applied.

Archimedes' principle states that An object immersed in a fluid experiences a buoyant force that is equal in magnitude to the force of gravity on the displaced fluid

According to Archimedes principle, the buoyant force acting on the beach ball equals the weight of the water displaced by the beachball. So we can say the buoyant force is 5N.

We have that density = mass/ volume

So the mass of the chair will be density* volume

mass= 9800 * 0.650

mass=  6370 grams

The volume of the copper sphere will be

volume= mass/ density

volume = 2.5/ 0.0464 cm³

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According to the information, in general, adding electrons to nonmetals is called reduction.

Nonmetals are elements in the periodic table that are generally not very reactive chemically.

In general, nonmetals have a low melting and boiling point, are poor conductors of heat and electricity, and have a tendency to gain electrons when they react with other elements.

Nonmetals typically form negative ions (anions) when they react with metals, which means they gain electrons.

This is called reduction, which occurs when electrons are added to an atom, reducing its oxidation state or oxidation number.

Additionally, nonmetals often form covalent bonds with other nonmetals by sharing electrons to form molecules.

This is in contrast to metals, which typically form ionic bonds by transferring electrons to form cations and anions.

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Answer:

.

Answer: 5 All of the molecules have the same kinetic energy

since the temperature is kept constant at 298 K

Explanation:

The AVERAGE kinetic energy is directly proportional to the absolute temperature.

All the molecules have the same average kinetic energy as average kinetic energy is directly proportional to the absolute temperature. So, the correct option is 5.

The average kinetic energy (K) is equal to one-half of the mass (m) of each gas molecule times the root mean square speed (Vrms) squared.

We know that the average kinetic energy is directly proportional to the absolute temperature.

All of the molecules have the same kinetic energy since the temperature is kept constant at 298 K.

Therefore, All the molecules have the same average kinetic energy as average kinetic energy is directly proportional to the absolute temperature.

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The empirical formula of phosphorus selenide is PSe

The empirical formula represents the simplest whole-number ratio of the elements in a compound. To determine the empirical formula of phosphorus selenide, we need to find the ratio of phosphorus to selenium.

First, we need to convert the given masses of phosphorus and selenide to moles. To do this, we use the molar mass of each element. The molar mass of phosphorus (P) is approximately 31.0 g/mol, and the molar mass of selenium (Se) is approximately 78.0 g/mol.

For the phosphorus sample, we have:

mass of phosphorus = 45.2 mg = 0.0452 g
moles of phosphorus = mass of phosphorus / molar mass of phosphorus
                  = 0.0452 g / 31.0 g/mol
                  ≈ 0.00146 mol

For the selenide formed, we have:

mass of selenide = 131.6 mg = 0.1316 g
moles of selenide = mass of selenide / molar mass of selenium
                = 0.1316 g / 78.0 g/mol
                ≈ 0.00169 mol

Next, we need to find the simplest whole-number ratio between phosphorus and selenium. To do this, we divide the number of moles of each element by the smallest number of moles (in this case, 0.00146 mol).

phosphorus ratio = moles of phosphorus / smallest number of moles
                = 0.00146 mol / 0.00146 mol
                = 1

selenium ratio = moles of selenium / smallest number of moles
              = 0.00169 mol / 0.00146 mol
              ≈ 1.16

Since we need to express the empirical formula using whole numbers, we need to round the selenium ratio to the nearest whole number. In this case, the selenium ratio is approximately 1.16, so we round it to 1.

Therefore, the empirical formula of phosphorus selenide is PSe.

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Answer:

\(Kc\frac{(Ba3N2)(H2O)^6}{(Ba(OH)2)^3(NH3)^2}\)

Explanation:

Because kc equals products/reactants hope this helps :)

Answer:

ones in magnets r close together while others can be spread apart

Answer: 6.02214179×1023 atoms

Explanation: I think so

Answer:

43.3 L

Explanation:

Applying,

V/T = V'/T'................... Equation 1

Where V = Initial volume of the ball0on, T = Initial temperature of the balloon, V' = Final volume of the balloon, T' = Final Temperature of the balloon.

make V' the subject of the equation

V' = VT'/T................ Equation 2

From the question,

Given: V = 47 L, T = 320 K, T' = 295 K

Substitute these values into equation 2

V' = (47×295)/320

V' = 43.3 L

Akshay's plasma osmolarity after the infusion mixed with his plasma, but before any water entered his rbc is 6 osmol/L.

Osmolarity is a measure of concentration that reflects the solutions' osmoticity. Osmolarity is how osmolar concentration is expressed.

The osmolarity of Akshay's plasma after the infusion can be calculated using the following formula:

Osmolarity = 2 x [solute concentration]

where solute concentration is the concentration of the solutes in the plasma.

Assuming the IV contained isotonic saline with a concentration of 0.9%, then the solute concentration of Akshay's plasma would be 0.9/1000 * 3L = 0.0027.

Therefore, the osmolarity of Akshay's plasma after the infusion would be 2 x 0.0027 = 0.0054 osmol/L.

Akshay's plasma osmolarity after the infusion mixed with his plasma, but before any water entered his RBC = (3 L x 2 Osmol/L) = 6 osmol/L.

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A chemical reaction involves the breaking or making of interatomic bonds, in which one or more substances are changed into others.

According to this question, heat is given off when hydrogen burns in air to form water. Bond is formed when water is produced and this releases the heat energy as it is an exothermic process.

Melting is the process of changing the state of a substance from solid to liquid by heating it past its melting point. When a solid melts, liquid is formed and this causes an increase in volume.

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Answer:  \(CH_3CH_2CH_2CHO\) has aldehyde functional group.

Explanation:

Functional groups are specific group of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.

A.  \(CH_3CH_2CH_2COCH_3\) has ketone \(C=O\) functional group .

B.  \(CH_3CH_2CH_2COOH\) has carboxylic acid \(COOH\) functional group .

C.  \(CH_3CH_2CH_2CHO\) has  aldehyde \(H-C=O\) functional group .

D. \(CH_3CH_2CH_2COOCH_3\) has ester \(RO-C=O\) functional group .

Thus \(CH_3CH_2CH_2CHO\) has aldehyde (CHO) group.

Yes, scientists can be more or less certain of their claims depending on the evidence they have.

This is because scientific claims are based on evidence and are subject to testing and evaluation. Scientists use various methods, such as experiments, observations, and data analysis, to gather evidence and test their claims. The more evidence a scientist has to support a claim, the more certain they can be of its validity.

However, even with strong evidence, scientific claims are always subject to revision or modification as new evidence becomes available. This is because scientific knowledge is constantly evolving and improving as new discoveries are made and old theories are revised or refined.

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The "Bay Area Trade Finance Blockchain Platform" is a blockchain-based trade finance platform that was launched by the Hong Kong Monetary Authority reactant and the Monetary Authority of Singapore.

Correct answer is, True.

Taiwan is indeed one of the targeted jurisdictions for this platform, along with Hong Kong and Singapore. The platform aims to streamline trade finance processes and improve efficiency in cross-border trade.

Taiwan is indeed one of the targeted jurisdictions of the "Bay Area Trade Finance Blockchain Platform." This platform aims to facilitate trade finance transactions and enhance the efficiency of financial services in the Greater Bay Area, which includes Hong Kong, Macau, and several cities in Guangdong province of China. Taiwan's inclusion in this platform signifies its importance in regional trade and finance.

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Answer:

\(m_{CO_2}=0.88g\)

Explanation:

Hello there!

In this case, since we are talking about a decomposition reaction whereby calcium carbonate is decomposed to calcium oxide and carbon dioxide according to the following chemical equation:

\(CaCO_3\rightarrow CaO+CO_2\)

Next, we must recall the law of conservation of mass which states that matter cannot be neither created nor destroyed so the mass of calcium carbonate equal the addition of the mass of both calcium oxide and carbon dioxide:

\(m_{CaCO_3}=m_{CaO}+m_{CO_2}\)

Which must be solved for the mass of carbon dioxide as we are given those of calcium carbonate and calcium oxide:

\(m_{CO_2}=m_{CaCO_3}-m_{CaO}\\\\m_{CO_2}=2.00g-1.12g\\\\m_{CO_2}=0.88g\)

Best regards!

Answer:

5,250g

Explanation:

Density = Mass / Volume

*Note: mass = x

1.50g/mL = x / 3500mL

multiply 3500mL on both sides

1.50g/mL * 3500mL = 3500mL(x) / 3500mL

cancel units

x = 5250g

Well, the answer is the 4rth one "

50°C"

Answer:

Silver bromide.

Explanation: