Chemical name for S2F3

What is the maximum mass of PH3 that can be formed when 62.0g of phosphorus reacts with

Luda [366]

Answer: The mass of $PH_3$ produced is 45.22 g

Explanation:

Limiting reagent is defined as the reagent which is completely consumed in the reaction and limits the formation of the product.

Excess reagent is defined as the reagent which is left behind after the completion of the reaction.

The number of moles is defined as the ratio of the mass of a substance to its molar mass. The equation used is:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$ ......(1)

For $P_4$ :

Given mass of $P_4$ = 62.0 g

Molar mass of $P_4$ = 124 g/mol

Putting values in equation 1, we get:

$\text{Moles of }P_4=\frac{62.0g}{124g/mol}=0.516mol$

For $H_2$ :

Given mass of $H_2$ = 4.00 g

Molar mass of $H_2$ = 2 g/mol

Putting values in equation 1, we get:

$\text{Moles of }H_2=\frac{4.0g}{2g/mol}=2mol$

The chemical equation follows:

$P_4(g)+6H_2(g)\rightarrow 4PH_3(g)$

By stoichiometry of the reaction:

If 6 moles of hydrogen gas reacts with 1 mole of $P_4$

So, 2 moles of hydrogen gas will react with = $\frac{1}{6}\times 2=0.333mol$ of $P_4$

As the given amount of $P_4$ is more than the required amount. Thus, it is present in excess and is considered as an excess reagent.

Thus, hydrogen gas is considered a limiting reagent because it limits the formation of the product.

By the stoichiometry of the reaction:

If 6 moles of $H_2$ produces 4 mole of $PH_3$

So, 2 moles of $H_2$ will produce = $\frac{4}{6}\times 2=1.33mol$ of $PH_3$

We know, molar mass of $PH_3$ = 34 g/mol

Putting values in equation 1, we get:

$\text{Mass of }PH_3=(1.33mol\times 34g/mol)=45.22g$

Hence, the mass of $PH_3$ produced is 45.22 g

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Repining of fruits is which type of change

jek_recluse [69]

Answer:

irreversible.

I hope this will help you

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Atoms contain three types of particles. in the nucleus there are positively charged protons as well as neutrons which have no ch

LiRa [457]

This is a false statement. The negatively charged particles that orbit the nucleus are called electrons. They are what balance out the protons, giving the element an overall neutral charge. They are also the parts of the atom that bond to other elements, which lead to molecules and other compounds.

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nika2105 [10]

I got it for you no worries

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4 years ago

10 points !! Which can happen during a physical change?

Sveta_85 [38]

I think that the answer is A because if you think about water for an example. When water turns into ice, it's still technically water, just the molecules are frozen. The water is physically changed. It could also see why you think it is B but I don't think so completely. It doesn't really make sense to me. So I'd choose A. It's definitely not C or D.

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3 years ago