Molality (mol/kg, molal, or m) denotes the number of moles of solute per kilogram of solvent (not solution!).
So if it is supposed that 1 L water weights 1 kg (in fact it is 0.99232 kg/L at 20oC) then the molality is 0.50 mole/kg.
Contrarily:
[Molarity (in units of mol/L, molar, or M) or molar concentration denotes the number of moles of a given substance (solute) per liter of solution].
The molar mass of CaBr2 is Mm=199.886. So 20 g CaBr2 in moles is:
20 g CaBr2 x (1 mol CaBr2 / 199.886 g CaBr2) = 0.10 mol CaBr2
To get molarity we divide the moles by liters. If you meant to type 50 L then:
0.10 mol / 50 L = .0020 M CaBr2
If you meant 0.50 L then:
0.10 mol / 0.50 L = 0.20 M CaBr2
Molarity is moles per litre. You need to convert the concentration so that it is in moles per litre. 0.4/500, x 1000 is 0.8 molar.
You have 85g in 40 litres. Therefore you have 2.125g in a litre. 2.125/74.55g per mole is 0.0285 molar.
Molarity is mols of solute over liters of solution. 85.0g NaNO3 (1mol/85g ) = 1mol 750ml = 0.75 Liters so, 1/0.75 = 1.3 Molar
Molarity = moles of solute/Liters of solutionOr, for our purposes....,Liters of solution (volume) = moles of solute/MolarityVolume (liters) = 0.150 moles HCl/4.00 M HCl= 0.0375 liters = 37.5 milliliters======================
Molarity (M) is defined as moles of solute/liters of solution. Assuming the final volume is 500 ml (0.5 liters), then M = 1.2 moles/0.5 liters = 2.4 M
Molarity is the no of moles of solute per dm3 solution, the temperature change changes the volume so molarity becomes effected.
Molarity = moles of solute(CuSO4)/volume of solution(Liters) 0.967 grams CuSO4 (1 mole CuSO4/159.62 grams) = 0.00606 moles CuSO4 Molarity = 0.00606 moles/0.020 liters = 0.303 Molarity
Molarity is mols of solute over liters of solution. 85.0g NaNO3 (1mol/85g ) = 1mol 750ml = 0.75 Liters so, 1/0.75 = 1.3 Molar
Molarity = moles of solute/Liters of solutionOr, for our purposes....,Liters of solution (volume) = moles of solute/MolarityVolume (liters) = 0.150 moles HCl/4.00 M HCl= 0.0375 liters = 37.5 milliliters======================
Molarity (M) = mole of solute (mol)/volume of solution that it is dissolved into (L) Make sure that the volume is converted to L if it isn't already, otherwise you will get wrong answers.
Molarity (M) is defined as moles of solute/liters of solution. Assuming the final volume is 500 ml (0.5 liters), then M = 1.2 moles/0.5 liters = 2.4 M
The molarity of a solution containing 7.0 moles of solute in 569mL of solution is a)81M b)0.081M c)12M D)4.0M The answer is C. 12M 7 x 1000/569 = 12.302
100 Liters? I will assume as much. Molarity = moles of solute/Liters of solution Molarity = 0.10 mole HCl/100.0 Liters = 0.001 M HCl -------------------------now, to find pH - log(0.001 M HCl) = 3 pH -----------------so, your acid is of 3 pH, which is to be expected at the volume od solution
The concentration in moles of a substance in the solution
Molarity is the no of moles of solute per dm3 solution, the temperature change changes the volume so molarity becomes effected.
Need to find moles NaCl. 526 grams NaCl (1 mole NaCl/58.44 grams) = 9.0 moles NaCl --------------------------------now, Molarity = moles of solute/Liters of solution or, for our purposes Liters of solution = moles of solute/Molarity Liters of solution = 9.0 moles NaCl/3.0 M = 3.0 liters in volume ---------------------------------
Molarity = moles of solute/Liters of solution Or, for our purposes, Moles of solute = Liters of solution * Molarity Moles Na2CO3 = 10.0 Liters * 2.0 M = 20 moles Na2CO3 --------------------------
This sodium hydroxide solution has a molarity of 0,25.
The molarity of a solution given by the number of moles divided by the volume it contains. Hence, the molarity of KCl is 4.00/3.00 = 1.33 mol/L.