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How many moles of k3po4 will be needed to create a solution with a 1.2m in a 1.5 kg of water?
Wiki User
∙ 10y ago
The definition of molality, which is usually meant by a lower case "m" in this sort of context, is moles of solute divided by kilograms of solvent. Therefore, calling the desired answer x, x/1.5 = 1.2, or x = 1.8. This is the same for all solutes!
Wiki User
∙ 10y ago
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How many grams of NaC1 are needed to make1.00 liter of a 3.00M NaC1 solution?
Molarity = moles of solute/volume of solution. 1 liter = 1000 millilitetrs 3.00M = X Moles/1000ml = 3000 millimoles, or 3 moles NaCl 3 moles NaCl (58.44g NaCl/1mol NaCl ) = 175.32 grams needed. About 4/10 of a pound of salt.
How many milliliters of concentrated 8 M solution is needed to make 900 ml of 2 M solution?
237.5 mL (200mL if you are keeping track of significant figures). Molarity is moles/liters. To make 900mL of a 2M solution, you need 1.8 moles of solute. There are 1.8 moles of solute in 237.5 mL of 8M solution.
How many moles of KCl are contained in 0.635L of 2.2M KCl?
moles KCl = ( M solution ) ( V solution in L )moles KCl = ( 2.2 mol KCl / L solution ) ( 0.635 L of solution )moles KCl = 1.397 moles KCl
How many moles of KCl are needed to prepare 1.00 L of a 1.0M KCl solution?
M= moles in solution/liters so plug in what you know 3.0M of KCl solution = moles in solution/ 2.0L multiply both sides by 2.0L moles solute = 1.5 moles KCl so you need 1.5 moles KCl to prepare the solution
How many moles are contained in 0.455L of a 7.182 M solution?
This is a chemical calculation. there are 3.267 moles in this solution.
How many moles of agno3 are needed to prepare 0.50 l of a 4.0 m solution?
Molarity = moles of solute/liters of solution or, for our purposes moles of solute = liters of solution * Molarity moles of AgNO3 = 0,50 liters * 4.0 M = 2.0 moles of AgNO3 needed --------------------------------------
How many moles of copper sulfate are needed to make 2.50 Liters of 0.125 moles solution?
0.125 Molar solution! Molarity = moles of solute/Liters of solution Algebraically manipulated, Moles of copper sulfate = 2.50 Liters * 0.125 M = 0.313 moles copper sulfate needed ===========================
How many moles ok potassium are present in 343 mL of a 1.27 M solution of potassium phosphate?
The amount of potassium phosphate in the solution is 1.27 M * 0.343 L = 0.43561 moles.The chemical formula of potassium phosphate is K3PO4, so there is three times as many moles of potassium as there are moles of potassium phoshate in the molecule:0.43561 * 3 = 1.30683Answer: 1.31 moles
How many moles of HNO3 are needed to prepare 5.0 liters of 2.0m soultion of HNO3?
Concentration of NaOH = 0.025 M = 0.025 Moles per Litre of SolutionVolume of Solution required = 5.00LWe can say therefore that:Number of Moles of NaOH needed to prepare the solution= Concentration of NaOH * Volume of Solution requiredTherefore:Number of Moles of NaOH needed to prepare the solution= 0.025M * 5.00L= 0.125molesFrom this we can say that 0.125 moles of NaOH are needed to prepare a 5.00 L solution with a concentration of 0.025M of NaOH.
How many moles of NaOH are needed to prepare 2 liters of a 2.0 M solution?
4 moles or 160 g NaOH is required for one litre solution.
How many liters are needed to make a 0.25 M solution with 0.50 moles moles of C12H22O11?
You need 0,5 L.
How many moles of potassium nitrate are produced when two moles of potassium phosphate react with two moles of aluminum nitrate?
Al(NO3)3 + K3PO4 = 3KNO3 + AlPO4 This is the BALANCED reaction equation/ Note the molar ratios are 1:1 :: 3: 1 So doubling up to actual moles we have 2:2 :: 6:2 Hence the moles produced is '6'..
How many moles of sodium chloride are needed to prepare 500 mL of a 0.250 M solution?
500ml = 500cm3 = 0.5dm3 0.250M = 0.250mol/dm3 number of moles = molarity x volume number of moles = 0.250mol/dm3 x 0.5dm3 = 0.125mol 0.125mol of NaCl is needed to prepare the required solution.
How many grams of NaC1 are needed to make1.00 liter of a 3.00M NaC1 solution?
Molarity = moles of solute/volume of solution. 1 liter = 1000 millilitetrs 3.00M = X Moles/1000ml = 3000 millimoles, or 3 moles NaCl 3 moles NaCl (58.44g NaCl/1mol NaCl ) = 175.32 grams needed. About 4/10 of a pound of salt.
How many moles of hno3 are needed to prepare 5.0 of a 2.0 m solution of hno3?
10
How many moles of NaOH needed to prepare 300 mL of a 0.2 m solution of NaOH?
You need 2,4 g NaOH (0,06 moles).
How many milliliters of concentrated 8 M solution is needed to make 900 ml of 2 M solution?
237.5 mL (200mL if you are keeping track of significant figures). Molarity is moles/liters. To make 900mL of a 2M solution, you need 1.8 moles of solute. There are 1.8 moles of solute in 237.5 mL of 8M solution.
