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What is the molarity of a solution that has a volume of 40 liters and contains 85.0 grams KCl?
Wiki User
∙ 10y ago
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].
Wiki User
∙ 13y ago
Wiki User
∙ 13y agoThe 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
Wiki User
∙ 10y agoMolarity 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.
Wiki User
∙ 10y agoYou have 85g in 40 litres. Therefore you have 2.125g in a litre. 2.125/74.55g per mole is 0.0285 molar.
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A solution contains 85.0 g of NaNO3 and has a volume os 750 mL find the molarity of the solution?
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
What volume of 4.00 M Hcl solution contains 0.150 mol Hcl?
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======================
What is the molarity of a solution that is made using 1.2 moles of a substance in 500mL?
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
Why molality is not temperature dependent?
Molarity is the no of moles of solute per dm3 solution, the temperature change changes the volume so molarity becomes effected.
A 20.0 mL sample of CuSO4 was evaporated to dryness leaving 0.967g of residue What was the molarity of the original solution?
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
A solution contains 85.0 g of NaNO3 and has a volume os 750 mL find the molarity of the solution?
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
What volume of 4.00 M Hcl solution contains 0.150 mol Hcl?
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======================
How do you calculate molarity of substance?
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.
What is the molarity of a solution that is made using 1.2 moles of a substance in 500mL?
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
What is the molarity of a solution containing 7.0 moles of a solute in ml of solution?
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
What is the pH of a solution that contains 0.10 mole of HCI in a voulme of 100.0l?
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
What is the molarity of a solution is defined as?
The concentration in moles of a substance in the solution
Why molality is not temperature dependent?
Molarity is the no of moles of solute per dm3 solution, the temperature change changes the volume so molarity becomes effected.
What is the volume of 3.0 M solution of NaCl made with 526g of solute?
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 ---------------------------------
How many moles of Na2CO3 are there in 10.0 L of 2.0 M soluton?
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 --------------------------
A solution of NaOH contains 20g of this compound in 2dm3 of this solution . What is molarity of this solution?
This sodium hydroxide solution has a molarity of 0,25.
What is the molarity of a solution where 4.00 moles of Potassium Chloride is dissolved in 3.00 L of solution?
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.
