How do you make 250ml solution?

To make 250 mL of a 0.1 M solution you need 4g/4 (250 mL is 1/4 of a liter) mol or 1 g of NaOH. So, first weigh out 1 g. Next, fill a 250 mL volumetric about 2/3–3/4 full and add the NaOH to it, slowly and with stirring.

How many moles of na2so4 are in 250 mL of a 0.400 M solution?

0.1 moles
There are 0.1 moles of solute in 250 mL of 0.4 M solution.

What is the molar concentration of calcium ions present in a 0.025 M aqueous solution of calcium nitrate?

Because there are two NO3– ions for each Ca2+ ion in the compound, each mole of Ca(NO3)2 that dissolves dissociates into 1 mol of Ca2+ and 2 mol of NO3–. Thus, a solution that is 0.025 M in Ca(NO3)2 is 0.025 M in Ca2+ and 2 0.025 M = 0.050 M in NO3–.

How would you prepare 1M solution of NaCl in 100 mL?

To make 100 ml of 0.1M NaCl, one would pipette 10 ml of stock 1M NaCl into a 100 ml volumetric flask, and bring the total volume to 100 ml with water.

How many grams of any will be will be needed to prepare 250ml of 0.1 M solution?

To make 250 ml of 0.1 M NaOH, you dissolve 1 gram NaOH in enough water to make a final volume of 250 mls.

How do you make 18m sulfuric acid?

Fill a container about half way or more with distilled water, add the acid, and then bring up to volume with more water. In the example above, fill a flask with about 150 mL or more with distilled water, add 6.9 mL of concentrated sulfuric acid, then continue to dilute with water to the 250 mL mark.

How do you make 1m na2so4?

All Answers (1) To obtain 1 M solution, it is simply to weigh 78.0452 g, dissolve them in sufficient amount of solvent (water) and add solvent (water) up to 1 liter. If small quantities are preferred; dissolve 7.80452 g Na2S in sufficient amount of solvent (water) and add solvent (water) up to 100 mL.

How do you make 1L of a 1M NaCl solution?

The atomic mass (or weight) of Na is 22.99, the atomic mass of Cl is 35.45, so 22.99 + 35.45 = 58.44. If you dissolve 58.44g of NaCl in a final volume of 1 liter, you have made a 1M NaCl solution, a 1 molar solution.

How many grams of NaCl are in 250ml?

From this we can conclude that the number of moles and grams of NaCl present in 250 mL of a 0.5 M NaCl solution is 0.125 and 7.32 respectively. Therefore, the correct answer is option (A).