# chemistry urgent

posted by .

if 500 ml of HCl solution is needed to react with 2.43 g of Mg, what is the molarity of the HCl solution?

• chemistry urgent -

Mg + 2HCl ==> NgCl2 + H2

mols Mg = grams/molar mass
Convert moles Mg to moles HCl using the coefficients in the balanced equation.
Convert moles HCl to volume using M = moles/L.

• chemistry urgent -

The hydrogen generated in lab is a product of reaction between magnesium and hydrochloric acid. Which of these reacts was the limiting reactant?

• To Hilda -

If you have a question please go to the top of the page, click on Post a new Question, and post your question. If you want to follow up on this attempt at a question, please be advised that you have not provided enough information. We have no idea how much of the reagents were used nor how much hydrogen gas was generated (or the conditions of the lab if that is important).

## Similar Questions

1. ### chemistry

I have a 0.25 m aquaeous solution of HCL. It's density is 1.05 g/ml. WHat is the % by mass (m/m) of this solution?
2. ### ap chemistry

please explain titration problems. I'm a total noob at this and am trying to answer some prelab questions. Examples: 1. How many mL of a 0.800 M NaOH solution is needed to just neutralize 40 mL of a 0.600 M HCl solution?

Please help. I have no idea how to do these 4 homework problems. 1- How many milliliters of 0.140 M HCl are needed to completely neutralize 42.0mL of 0.106 M Ba(OH)2 solution?
4. ### Chemistry

A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. …
5. ### Chemistry

0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.
6. ### chemistry

In a titration experiment, 22.00mL of a NaOH solution are required to neutralize 24.02 mL of a 0.1094 M HCL solution. what is the molarity of H+ in the HCL solution?
7. ### chemistry

10). What is the molarity of an HCl solution if 42.5 mL of a 0.110 M KOH solution is needed to titrate a 25.0-mL sample of the acid?
8. ### Chemistry HW!!!

1. If I dilute 75 mL of 0.50 M CaF2 solution to a final volume of 375 mL, what will be the molarity of the resulting solution?
9. ### chemistry

A student prepares a solution of hydrochloric acid that is approximately 0.1 M and wanted to determine its precise concentration. A 25.00 mL portion of the HCl solution is transferred to a flask, and after a few drops of indicator …
10. ### che

the concetration of HCl in a commercial concetrated HCl solution is given as 37%(W/W). calculate the molarity., normality of HCl in the solution . prepare 100.ml of 1N solution of HCl

More Similar Questions