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Author Question: According to the following thermochemical equation, what mass of H2O (in g) must form in order to ... (Read 142 times)

savannahhooper

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on: Aug 27, 2018
According to the following thermochemical equation, what mass of H2O (in g) must form in order to produce 975 kJ of energy?
 
  SiO2(s) + 4 HF(g)  SiF4(g) + 2 H2O(l) Hrxn = -184 kJ
 
  A) 68.0 g
  B) 102 g
  C) 54.1 g
  D) 191 g
  E) 95.5 g

Question 2

Calculate the density of cyclohexane if a 50.0 g sample has a volume of 64.3 mL.
 
  A) 114.3 g/mL
  B) 14.3 g/mL
  C) 1.29 g/mL
  D) 0.778 g/mL
  E) 0.322 g/mL


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chjcharjto14

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Reply #1 on: Aug 27, 2018
Answer to Question 1

D

Answer to Question 2

D


savannahhooper

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Reply #2 on: Aug 27, 2018
TY


chjcharjto14

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Reply #3 on: Aug 27, 2018
You're welcome


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