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Author Question: According to the following thermochemical equation, what mass of H2O (in g) must form to produce 975 ... (Read 99 times)

hbsimmons88

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on: Nov 18, 2019

Question 1

According to the following thermochemical equation, what mass of HF (in g) must react to produce 345 kJ of energy? Assume excess SiO2.

SiO2(s) + 4HF(g) → SiF4(g) + 2H2O(l)DrH° = -184 kJ

◦ 37.5 g
◦ 107 g
◦ 150. g
◦ 42.7 g
◦ 173 g

Question 2

According to the following thermochemical equation, what mass of H2O (in g) must form to produce 975 kJ of energy?

SiO2(s) + 4HF(g) → SiF4(g) + 2H2O(l)DrH° = -184 kJ

◦ 191 g
◦ 102 g
◦ 68.0 g
◦ 95.5 g
◦ 54.1 g
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Marked as best answer by hbsimmons88 on Nov 18, 2019

soda0602

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Reply #1 on: Nov 18, 2019
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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hbsimmons88

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Reply 2 on: Nov 18, 2019
Thanks for the timely response, appreciate it

dreamfighter72

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Reply 3 on: Yesterday
Wow, this really help

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