The temperature of a sample of lead increased by 24.4 °C when 257 Jof heat was applied. What is the mass of the sample?=gSubstanceSpecific heat J/(g · °C)lead0.128silver0.235copper0.385i ron0.449aluminum0.903

How many molecules are found in 1.32 mol of nacl?

Identify and describe the three ways that mutations affect organisms.

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?