What would slow down the reaction time in a chemistry lab

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88