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3 years ago

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What is chemistry and how is it different from biology

1 answer:

Len [333]3 years ago

3 0

Answer:chemistry is a subject that deals with composition of substances and of the changes which they undergo in consequences of alteration in the constitution of molecules which depend upon variation of the number, kind or mode of arrangement of the constituent atom while biology deals with characteristic life processes and phenomena of living organisms

Explanation

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Consider the following balanced equation for the following reaction:

Sidana [21]

<u>Answer:</u> The actual yield of the carbon dioxide is 47.48 grams

<u>Explanation:</u>

For the given balanced equation:

$15O_2(g)+2C_6H_5COOH(aq.)\rightarrow 14CO_2(g)+6H_2O(l)$

To calculate the mass for given number of moles, we use the equation:

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

Theoretical moles of carbon dioxide = 1.30 moles

Molar mass of carbon dioxide = 44 g/mol

Putting values in above equation, we get:

$1.30mol=\frac{\text{Theoretical yield of carbon dioxide}}{44g/mol}\\\\\text{Theoretical yield of carbon dioxide}=(1.30mol\times 44g/mol)=57.2g$

To calculate the theoretical yield of carbon dioxide, we use the equation:

$\%\text{ yield}=\frac{\text{Actual yield}}{\text{Theoretical yield}}\times 100$

Theoretical yield of carbon dioxide = 57.2 g

Percentage yield of carbon dioxide = 83.0 %

Putting values in above equation, we get:

$83=\frac{\text{Actual yield of carbon dioxide}}{57.2}\times 100\\\\\text{Actual yield of carbon dioxide}=\frac{57.2\times 83}{100}=47.48g$

Hence, the actual yield of the carbon dioxide is 47.48 grams

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