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never [62]
3 years ago
5

Calculate the empirical formula for acetaminophen(Tylenol)

Chemistry
1 answer:
alukav5142 [94]3 years ago
5 0
The empirical formula of acetaminophen (Tylenol) is C8H9NO2.
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How many moles of H20 are in 12.4 g H20?​
UNO [17]

Answer:

12.4g of water has 0.689 moles of water.

Explanation:

Molar weight of H_{2}O = 16 + 2 = 18g

One mole of H_{2}O weighs 18g.

18g\longrightarrow1\:mole\:of\:H_{2}O\\12.4g\longrightarrow\frac{12.4}{18}=0.689\:moles\:of\:H_{2}O

Hence, 12.4g of water has 0.689 moles of water.

6 0
3 years ago
What is the approximate percent yield for this reaction?<br> Ba(NO3)2 + Na2SO4 —&gt; BaSO4 + 2 NaNO3
melomori [17]

The percent yield for this reaction is 91%.

<u>Explanation</u>:

                   Ba(NO3)2 + Na2SO4 — > BaSO4 + 2NaNO3  

  • Assume that 0.45 mol of Ba(NO3)2 reacts with excess Na2SO4 to create 0.41 mol of BaSO4.  
  • Convert to grams of BaSO4 utilizing its molar mass (233.38 g/mol), which will be giving the actual yield.  
  • Actual Yield = 0.41 mol BaSO4 x (233.38 g BaSO4/1 mol BaSO4)  

                               = 96 g BaSO4  

  • Beginning with 0.45 mol of Ba(NO3)2, compute the theoretical yield of BaSO4. Mole proportion of Ba(NO3)2 to BaSO4 is 1:1.  
  • 0.45 mol Ba(NO3)2 x (1 mol BaSO4/1 mol Ba(NO3)2) x (233.38 g BaSO4/1 mol BaSO4) = 105 g BaSO4  

                    % Yield = (Actual Yield/Theoretical Yield) x 100%  

                              = (96/105) x 100%  

                               = 91%.

6 0
3 years ago
Read 2 more answers
What is the mass of 0.251 moles of water? Using dimensional analysis show work
AVprozaik [17]

1 \text{ mol of H}_2 \text{O} \equiv 18 \text{ g} \implies 0.251  \text{ moles of H}_2 \text{O} \equiv 4.518 \text{ g}

3 0
3 years ago
What if there was an inverse relationship between the temperature and the volume? How do you think the world might be different?
kari74 [83]

If there was an inverse relationship between the temperature and the volume, our daily lives change because in high temperature things will contract.

<h3>What if there was an inverse relationship between the temperature and the volume?</h3>

If there was an inverse relationship between the temperature and the volume then with increasing temperature decrease occur in the volume of a substance. If this type of relationship is present in the world, the objects will contract when the temperature is high and expand when the temperature is low which make the solid materials expand at winter and contract at summer season.

So we can conclude that if there was an inverse relationship between the temperature and the volume, our daily lives change because in high temperature things will contract.

Learn more about temperature here: brainly.com/question/25677592

#SPJ1

5 0
2 years ago
When baking soda and vinegar react to certain surfaces up bubbles what does this mostly indicate
bekas [8.4K]

Answer:

a chemical reaction

Explanation:

4 0
4 years ago
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