QUESTION 1 A 7.00 mL sample of water was cooled from 50.0 °C to 25.0 °C. How much heat was lost (in terms of joules)? QU

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QUESTION 1
A 7.00 mL sample of water was cooled from 50.0 °C to 25.0 °C.
How much heat was lost (in terms of joules)?
QUESTION 2
How many joules are required to change the temperature of 5.00 g
water from 21.3 °C to 35.6 °C.
QUESTION 3
Calculate the final temperature when 50.0 mL of water at 65.0 °C
are added to 25 mL of water at 25.0 °C.
QUESTION 4
If the speicif heat of methano is 2.51 J/K.g, how many joules
are necessary to raise the temperature of 50.0 g methanol from 20.0
°C to 60.0 °C?
QUESTION 5
When a 3.25 g sample of solid sodium hydroxide was dissolved in
a calorimeter in 100.0 of water, the temperature rose from 23.9 °C
to 32.0 °C. Calculate ΔH (in kJ/mol NaOH)
for the following solution process:
NaOH(s) -->
Na+(aq) +
OH-(aq)
Assume that it's a perfect calormeter and that the specific heat
of the solution is the same as that of pure water.