What is the pressure in a 26.0-L cylinder filled with 32.0 g of oxygen gas at a temperature of 338 K

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?

If two atoms are bonded to a central atom with no lone pairs,how will they be arranged

If 15 drops of ethanol from a medical dropper weight 0.60g, how many drops does it takes from a dropper to dispense 1.0ml of ethanol? the density of ethanol is 0.80g/ml