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Author Question: When 1.0 gram of hydrogen reacts with 8.0 grams of oxygen 9.0 grams of water are produced and 142 kJ ... (Read 74 times)

meagbuch

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on: Feb 15, 2020

Question 1

Combustion of hydrogen releases 142 kJ per gram of hydrogen reacted. How many kilocalories of energy are released by the combustion of 16.0 ounces of hydrogen?
◦ 2.69 × 105 kcal
◦ 1.54 × 104 kcal
◦ 1.31 kcal
◦ 19.2 kcal

Question 2

When 1.0 gram of hydrogen reacts with 8.0 grams of oxygen 9.0 grams of water are produced and 142 kJ of heat are released. How many grams of hydrogen and how many grams of oxygen must react to produce 250 kJ of heat?
◦ 0.57 g H2 and 4.5 g O2
◦ 1.8 g H2 and 4.5 g O2
◦ 1.8 g H2 and 14 g O2
◦ 0.57 g H2 and 14 g O2
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by meagbuch on Feb 15, 2020

cuttiesgirl16

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Reply #1 on: Feb 15, 2020
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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meagbuch

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Reply 2 on: Feb 15, 2020
Excellent

jomama

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Reply 3 on: Yesterday
Gracias!

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