Convert 3.45 g/ml to lb/in^3

1) this is the structure in the cell nucleus that houses a cell's genetic information

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '

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?