How many moles of water in 1.2 x 1024 molecules of water? ( 1 mole = 6.02 x 1023 molecules)

Find the mass, in grams, of 5.00*10^23 molecules of f2

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?

For the reaction c6h14(g) & longrightarrow; c6h6(g) + 4h2(g), δp(h2)/δt was found to be 2.5 x 10-2 atm/s, where δp(h2) is the change in pressure of hydrogen. determine δp(c6h14)/δt for this reaction at the same time.