8 moles of KCl are needed.
0.751 mol/0.951 L = 0.790 mol/liter = 0.790 M
The concentration of a solution is moles/volume. 2.943g of pure sulphuric acid H2S4 is approximately 15 moles, and 15/150 cm3 is 10.
Molarity = moles of solute/volume of solution M = 0.25 moles/0.50L = 0.5M
The number of moles is 0,527.
Moles of solute/ kg of solvent = 2 molal solution
first determine the number ofmoles dissolved in given solution then .5 moles moles dissolved in 800g. as comparison with 1000g of water, we know 100g of water dissolve only.1 moles of a glucose so we .7moles of glucose dissolve in 800g.
Assuming you mean 2 M solution and not 2 m (molal), you would do it as follows:2.0 moles/L x 1.5 liters = 3.0 moles KNO3 must be dissolved in 1.5 liters.
Well the definition of molarity is how many moles in every litre. You already have your answer expressed as moles in a litre, approximately. Density is approximately 1000g per litre, therefore it will be approximately 2 molar. (You haven't expressed temperature, but density should remain close to 1).
M = 2.0 moles/ liter
6 moles of solute dissolved in 4 liters of solution.
moles of NaCl in the solution = mass of dissolved NaCl/58,44
The number of moles of solute dissolved in 1 L of a solution would be the molarity. As an example, if you had 2 moles of solute in 1 liter the molarity would be 2M.
1M glucose means that 1 mole of glucose is dissolved in 1kg of water. Since 1M means 1 molal. And molality is equla to no.of moles of solute per kg of water.
Molarity = moles of solute / liters of solution moles = Molarity x liters = 0.150 x .250 = 0.0375 moles
Molarity = moles of solute/liters of solution Molarity = 0.597 moles HCl/0.169 liters = 3.53 M HCl ------------------
All of the moles of pure acid will have dissolved in the flask.