How do you prepare 100 mL 3M hydrochloric acid?

Answer 1

To prepare 100 mL of 3M hydrochloric acid, you would need to use the formula C1V1 = C2V2, where C1 is the initial concentration (molarity) and V1 is the initial volume, and C2 is the final concentration and V2 is the final volume. In this case, C1 = 3M, V1 = unknown, C2 = 3M, and V2 = 100 mL. By rearranging the formula, you can calculate the volume of the stock solution needed to make the desired concentration.

Answer 2

To prepare a 3% acetic (ethanoic) acid solution, you must first standardise the ethanoic acid. This question assumes that has already been done.

To make the concentration 3%, there must be 30g per 1000mL (30gL-1). Dissolve or mix in 30g of ethanoic acid per 1000ml (1L). Pipette this into aliquots of 100mL samples. You now have a 3% ethanoic/acetic acid solution.

Answer 3

C1V1=C2V2 This is the equation you need to prepare your solution. In order to see how much of solution 1, in your case 3M HCl, you need solve for V1. So Divide (1MHCl x 100mL) by 3M HCl.

Or

(1M)(100mL)/(3M) = 33.33mL

Answer 4

To prepare 100 mL of 3M hydrochloric acid, you would need to dilute a concentrated hydrochloric acid solution with a concentration greater than 3M. For example, you could measure 25 mL of concentrated 12M hydrochloric acid and dilute it with 75 mL of water to make a total volume of 100 mL with a concentration of 3M. Always remember to add acid to water slowly and with constant stirring to prevent splattering and ensure safety.

Answer 5

Hydrochloric acid has a molar mass of 36.5 grams per mole. To prepare 100 mL of a 3M solution add 10.95 grams of HCl to 100 mL water.