Calculate the mole fraction of solvent when 0.5 mol of LiBr are dissolved in 1.8 mol of water. Enter your answer rounded to 2 decimal places.

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Define a is a tiny pavket of energy