Asked by MAX

a solution containing 30 g of nh3 in 70 g of water has a density of 0.882 g/ml. what is the molarity and molality
Answered by DrBob222
30 g NH3 is how many moles? moles = g/molar mass.

70g H2O is how many kg? 0.070?
Then molality = moles/kg solvent.

For molarity, you want M = moles/L soln.
You have moles already.
The solution has a mass of 100 g (70 gH2O + 30 g NH3). Calculate volume from density and mass.
Then M = moles/L
Answered by damini
illustrate and calculate the distance each of the following gases would meet on a 12 foot tube: gas A has a molecular weight of 288grams/mole: gas B has a molecular weight of 56 grams/mole
Answered by kayombo
20.1
Answered by kayombo
Molarity 20.1 M
Molality 24.9 m
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