What is the volume of a gas at 50.0 celsius and 0.80 atm, if there are 0.75 moles of the gas present?

Achemist determined by measurements that 0.0300 most of beryllium oxide participate in a chemical reaction calculate the mass of berlylium oxide that participates

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Match the formula for the following compound:   magnesium sulfate heptahydratemgs·7h2omg2so4·7h2omg(so4)2·7h2omgso4·7h2o