AP Chemistry - Calorimetry, Specific Heat, and Calculations

How much heat does it take to heat 100g ice at 0C to boiling point?

Cice= 2.1 J/goC

Cwater= 4.2 J/goC

ΔHvap= 2260 J/g

ΔHfus=334 J/g

A 50g sample of a metal was heated to then quickly transferred to an insulated container containing 50g of at . The final temperature of the was .

Which of the following can be concluded?

Which of the following is the correct molar specific heat of water used when making calculations involving a calorimeter?

The specific heat capacity of an unknown liquid is $0.32\frac{J}{kg\cdot K}$ . The density of the liquid is $0.0321 \frac{g}{mL}$ If a chemist applies 243 J of heat to 300 mL of this liquid starting at $27.1^{\circ}C$ , what is the final temperature?

In which instance would a bomb calorimeter be more useful than a coffee-cup calorimeter?

The following is a list of specific heat capacities for a few metals.

$\small C_{copper} = 0.385$

$\small C_{iron} = 0.444$

$\small C_{silver} = 0.240$

$\small C_{aluminum} = 0.900$

A 50g sample of an unknown metal is heated with 800 joules. If the temperature of the metal increases by 41.6oC, what is the identity of the unknown metal?

A 20g sample of iron at a temperature of is placed into a container of water. There are 300 milliliters of water in the container at a temperature of .

$\small C_{iron} = 0.444\frac{J}{g^\circ C}$

$\small C_{water} = 4.184\frac{J}{g^\circ C}$

$\small \rho_{water} = 1\frac{g}{mL}$

What is the final temperature of the water?

$\small C_{ice} = 0.5 \frac{cal}{g^{\circ}C}$

$\small C_{water} = 1.0\frac{cal}{g^{\circ}C}$

$\small \Delta H_{fusion} = 80\frac{cal}{g}$

How much energy is needed to raise the temperature of five grams of ice from $\small -10^oC$ to $\small 35^oC$ ?

You want to prepare a cup of tea. To do so, you pour of tap water at $20^{0}C$ in a cup that does not absorb microwave radiation and heat it in a microwave oven at of power. If you assume a density of $1.00, \frac{g}{mL}$ for the water and know that its specific heat capacity is $4.184, \frac{J}{g^{o}C}$ , what time do you need to set in the microwave oven to heat the water to $60^{o}C$ ?

How much heat is needed to raise grams of aluminum by $20^{o}:C$ ?

$C_{aluminum}=0.900: \frac{J}{g\cdot^{o}\textrm{C}}$ .

Calorimetry, Specific Heat, and Calculations

Practice Questions