Which of the following is an example of a good conductor of electrons A. glass B. pure metal C. Dry glasses D. All of the above
2 answers:
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Answer:
mass (m) of the snow that the backpacker collected= 0.855 kg
Explanation:
Given that:
Q = 643 kJ = 643000 J
ΔHfusion = 6.02 kJ/mol = 6020 J/mol
number of mole of water H2O =
c = 4.18 J/g⋅K
ΔT = 100 K
Since there is a phase change from solid to liquid; then :
ΔH =
However without the given mass; we substitute for the number of moles; so:
Q =
m = 855 g
m = 0.855 kg
mass (m) of the snow that the backpacker collected= 0.855 kg
Answer:
Final pH of the solution = 5.46
Explanation:
The detailed step is shown in the attachment.
