25.0 mL of water increases temperature from 97°C to 100°C, what is its new volume?

What is the molar mass of CH₃OH (methanol)?

A gas at 15.0 atm increases temperature from 97°C to 100°C, what is its new pressure?

What is the molar mass of CaCO₃ (Calcium Carbonate)?

2.34 g of He is how many moles?

What is the molar mass of Fe(H₂O)₄(OH)₂?

A balloon contains 30.0 L of helium gas at 103kPa. What is the volume of the helium when the balloon rises to an altitude where the pressure is only 25.0 kPa?

2.5 g of H2 gas has a temp of 300K, a volume of 2.8L. What is the pressure of the hydrogen gas? The molar mass of hydrogen gas is 2.0 g/mole.

Oxygen gas is at a temperature of 40 C when it occupies a volume of 2.3 L. To what temperature should it be raised to occupy a volume of 6.5 L?

What is the SI unit of heat?

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