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pickupchik [31]
4 years ago
9

Energy absorbed or released as heat in a chemical or physical change is measured by a(n) a. thermometer. b. scale. 26. c. incuba

tor. d. calorimeter
Chemistry
1 answer:
sveta [45]4 years ago
8 0

Answer:

d. calorimeter

Explanation:

Calorimeter -

It is the instrument use for the measurement of the heat that is absorbed or released during a physical change or in chemical change .

The instrument or devise is used for the study thermodynamics , biochemistry and chemistry .

Hence , From the question information , the instrument which can be used is a Calorimeter .

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The precision of a tool can affect the measurement's accuracy. how specific the measurement can get (if it goes to the tenths place, hundredths, etc) can also affect the accuracy.
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What is NH3+HCl > NH4Cl as a balanced equation
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It’s already balanced
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Consider the fermentation reaction of glucose: C6H12O6 → 2C2H5OH + 2CO2 A 1.00-mol sample of C6H12O6 was placed in a vat with 10
inessss [21]

Answer:

% yield = 73.48 %

Explanation:

The fermentation reaction is:

C₆H₁₂O₆  →  2C₂H₅OH + 2CO₂          

The percent yield of C₂H₅OH is given by:

\% yield = \frac{m_{E}}{m_{T}} * 100

<em>where m_{E}: is the obtained mass of C₂H₅OH = 67.7g and m_{T}: is the theoretical mass of C₂H₅OH.     </em>

The theoretical mass of C₂H₅OH is calculated knowing that 1 mol of C₆H₁₂O₆ produces 2 moles of C₂H₅OH:  

m_{T} = mol * M

<em>where M: is the molar mass of C₂H₅OH =  46.068 g/mol</em>

m_{T} = 2 moles * 46.068 g/mol = 92.136 g                

Hence, the percent yield of C₂H₅OH is:

\% yield = \frac{67.7 g}{92.136 g}*100 = 73.48 \%

I hope it helps you!                  

3 0
3 years ago
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Explanation:

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