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Author Question: Given the specific heat for aluminum is 0.900 J/gC, how much heat is released when a 3.8 g sample of ... (Read 78 times)

rissygurl1124

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Question 1

Given that CaO(s) + H2O(l) → Ca(OH)2(s), ΔH°rxn = –64.8 kJ/mol, how many grams of CaO must react in order to liberate 525 kJ of heat?
◦ 6.92 g
◦ 56.1 g
◦ 455 g
◦ 606 g
◦ 3.40 × 104 g

Question 2

Given the specific heat for aluminum is 0.900 J/g·°C, how much heat is released when a 3.8 g sample of Al cools from 450.0°C to  25°C.
◦ 54 J
◦ 60 J
◦ 86 J
◦ 1.5 kJ
◦ 1.7 kJ


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Marked as best answer by rissygurl1124 on Nov 5, 2023

Htimsrs

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rissygurl1124

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Reply 2 on: Nov 5, 2023
Excellent


zacnyjessica

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Reply 3 on: Yesterday
:D TYSM

 

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