which factor is most responsible for the fact that water is a liquid rather than a gas at room temperature

You are to give ampicillin with a recommended dose of 25mg/kg to a child with a mass of 29kg. if stock on hand is 250mg/capsule how many capsules should be given?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

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