Chemistry

How many grams of NaCL are required to make 250ml of a 0.4M solution?

1. 👍
2. 👎
3. 👁
1. M = mols/liter of solution.
#moles = grams/molar mass.

1. 👍
2. 👎
2. Molar mass for Nacl= 58.44g/mol Volume=250ml or 0.250Litre molarity=0.4M °grams of NaCl required=Molarity × Volume in litre × Molar mass of NaCl=0.4M×0.250L×58.44g/mol=5.844g. There for 5.844g of NaCl is required to prepare 500ml of 0.4M solution NaCl. Weigh 5.844g of NaCl powder and dissolve in 500ml of Distilled water. BY BELLO LAWAL DANCHADI (STUDY HARD) FROM UDUSOK.

1. 👍
2. 👎

Similar Questions

1. Chemistry

A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92% (w/v) NaCl in water. How many grams of NaCl are contained in 250 mL of this solution? So wouldn't it just be .92%= .92 grams x

2. ChemII

A saline solution is 0.9% NaCl. What masses of NaCl and water would be required to prepare 50. L of this saline solution? Assume that the density of water is 1.000g/mL and that the NaCl does not add to the volume of the solution.

3. chemistry

a solution is made by dissolving 25 g NaCl in enough water to make 1.0 L solution. Assume that density of the solution is 1.0 g/mL. calculate the mass percent, molarity, molality, and mole fraction of NaCl. help please 25g/58.44g

4. chemistry

Find the molar masses of the following compounds: 1. LiI 2. PbCO4 3. Mg(OH)2 4. (NH4)3PO4 Find the percent composition (percent by mass) of the given element in the following compounds: 1. Fluorine in AgF 2. Hydrogen in glucose

1. Science

How many grams of potassium dichromate are required to prepare a 250ml solution of whose concentration is 2.16m.?

2. chemistry

Calculate the molarity of a solution that contains 48g of NaCl in 250ml of solution.

3. Chemistry

AgNO3 + NaCl → AgCl + NaNO3 . How many grams of NaCl would be required to react with 446 mL of 0.211 M AgNO3 solution? Answer in units of grams

4. Chem

Plese tell me if these are right. A 15.0-mL sample of NaCl solution has a mass of 15.78g. After the NaCl is evaporated to dryness, the dry salt residue has a mass of 3.26g. Calculate the following concentrations for the NaCl

1. Chemistry

How many grams of NaCl should be added to 1 L of water to make an isotonic solution? (molecular weight of NaCl= 58.5) Can someone please explain to me why the answer is 9 grams.

2. Chemistry

Calculate the solid needed to make a 250ml solution that is 0.34M in sodium cation, using sodium sulfate decahydrate. I came up with 13.685g. but how do I make that into 250ml of a solution that is0.34M in sodium cation?

3. chemistry

You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is availalbe. How many grams of the hydrated compound are required for 250ml of the reagent? Ca=40 Cl=35.5

4. chemistry

Calculate the grams of substance required to prepare 250mL of 5%(wt/vol) NaNO3