How do you make a 1 molal solution?

A one molal solution contains 1 mole of solute per 1000 g (1 kg) of solvent. To prepare a one molal solution of sucrose you would weigh one mole of sucrose into a container and add 1000 g water (1 liter). Note that volume of solvent rather than the volume of solution is measured.

What is a 1 molal solution?

A solution obtained by dissolving one gram of the solute in 1000 grams of solvent is known as a 1 molal solution. For example, when 60 g of NaOH are dissolved in 1000 g of solvent, the solution contains 1.5 moles of solute in 1 kg of solvent. Therefore, the molality is 1.5. The SI unit for molality is mol/kg.

How do you make a molar solution of CaCl2 in water?

Now you can make your solution: dissolve 1.11 g of CaCl 2 in sufficient water to make 100 ml of solution. The amount of water needed will be slightly less than 100 ml. A balance and a volumetric flask are used to make molar solutions. A procedure for making a molar solution with a 100 ml volumetric flask is as follows:

How much CaCl2 is needed to make a 100ml solution?

For example, to make 100 ml of 0.1 M CaCl 2 solution, use the previous formula to find out how much CaCl 2 you need: Now you can make your solution: dissolve 1.11 g of CaCl 2 in sufficient water to make 100 ml of solution.

How do you make a molar solution with a 100ml flask?

A procedure for making a molar solution with a 100 ml volumetric flask is as follows: Calculate the weight of solute needed to make 100ml of solution using the above formula. Weigh out amount of solute needed using a balance. Transfer the solute to a clean, dry 100ml volumetric flask.

How do you calculate the number of moles of water in NaCl?

The moles of NaCl is provided, but you still need the number of moles of water, H 2 O. Start by calculating the number of moles in one gram of water, using periodic table data for hydrogen and oxygen: H = 1.01 g/mol O = 16.00 g/mol H 2 O = 2 + 16 = 18 g/mol (look at the subscript to note there are 2 hydrogen atoms)