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1 year ago

A voltaic cell that uses the reaction

1 answer:

4 0

Did you intend to write [PdCl4]^-2 instead of PdCl2-4? If so, then:

Cathode: [PdCl4]^-2(aq) + 2e- ======⇒ Pd(s) + 4Cl-(aq) 

Anode: Cd(s) ==⇒ Cd+2(aq) + 2e-

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The Mond process produces pure nickel metal via the thermal decomposition of nickel tetracarbonyl: Ni(CO)4 (l) → Ni (s) + 4CO (g

Yuki888 [10]

Answer: The volume of CO formed is 254.43 L.

Explanation:

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of $Ni(CO)_4$ = 444 g

Molar mass of $Ni(CO)_4$ = 170.73 g/mol

Putting values in above equation, we get:

$\text{Moles of }Ni(CO)_4=\frac{444g}{170.73g/mol}=2.60mol$

For the given chemical reaction:

$Ni(CO)_4(l)\rightarrow Ni(s)+4CO(g)$

By stoichiometry of the reaction:

1 mole of nickel tetracarbonyl produces 4 moles of carbon monoxide.

So, 2.60 moles of nickel tetracarbonyl will produce = $\frac{4}{1}\times 2.60=10.4mol$ of carbon monoxide.

Now, to calculate the volume of the gas, we use ideal gas equation, which is:

PV = nRT

where,

P = Pressure of the gas = 752 torr

V = Volume of the gas = ? L

n = Number of moles of gas = 10.4 mol

R = Gas constant = $62.364\text{ L Torr }mol^{-1}K^{-1}$

T = Temperature of the gas = $22^oC=(273+22)K=295K$

Putting values in above equation, we get:

$752torr\times V=10.4mol\times 62.364\text{ L Torr }mol^{-1}K^{-1}\times 295K\\\\V=254.43L$

Hence, the volume of CO formed is 254.43 L.

5 0

1 year ago

Compound X has the same molecular formula as butane but has a different boiling point and melting point. What can be concluded a

Vsevolod [243]

Compound X is an isomer of butane with different chain types. It is either straight chain or bend chain.

3 0

1 year ago

2 red and 2 blue overlapping balls in the center are surrounded by a green, fuzzy, circular cloud with a white line running thro

labwork [276]

Answer:

¨it is negatively charged¨ i took the science test in edgeunity and got it right

Explanation:

Hi:)

4 0

1 year ago

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What is the relationship between the sequence of DNA’s subcomponents and the properties of DNA? 1. The amino acid sequence along

wel

Answer:

Explanation:

There are four nitrogenous bases in a DNA including guanine (G), adenine (A), cytosine (C) and Thymine (T) and together they form the nitrogenous base sequence arranged in a specific order of three letters such as GAC and TAG to form a genetic code.

These nitrogenous base sequences forming genetic code are amino acid specific and determine the amino acid sequence in DNA. for example: CTT determines leucine and GTT determines valine.

Hence, the correct option is "3".

7 0

1 year ago

There are many important laws and theories in science. Which of the following is a law of science?

Alenkasestr [34]

Answer: the answer is C

Explanation:

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1 year ago

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