Hello, I've already posted something similar and don't understand the answer, but now my percentages have changed. Hope someone can help.
Problem: I have some magnesium chloride flake which I want to add to water to make magnesium brine. My magnesium chloride flake contains 47% MgCl. Therefore, if I have 100gram of flake it will contain 47gram of MgCl. If I add 100gram of flake to 100ml of water, I get 200ml of brine containing 47gram of MgCl, but the concentration of MgCl in 200ml of brine is 23.5% (because I diluted the MgCl concentration by half).
I want to make up solutions of brine containing 15% MgCl and 29% MgCl and a third solution containing 31% MgCl.
I think that if I could work out how many grams or miligrams of flake are equal to 1%, then I could multiply that figure by 15, and 29 and 31 consecutively to get my answers ... but I'm not sure how to do this.
Is this correct, please:
47 gram of MgCl = 47,000mg of MgCl
Therefore 47,000 divided by 100 = 470
Therefore 470mg of MgCl = 1%
Therefore 470mg of MgCl flake x 15 = 7,050 mg (?approx 7 grams)
Therefore if I add 7 grams of MgCl flake to 100ml of water will I have approximately 15% MgCl concentration?
Problem: I have some magnesium chloride flake which I want to add to water to make magnesium brine. My magnesium chloride flake contains 47% MgCl. Therefore, if I have 100gram of flake it will contain 47gram of MgCl. If I add 100gram of flake to 100ml of water, I get 200ml of brine containing 47gram of MgCl, but the concentration of MgCl in 200ml of brine is 23.5% (because I diluted the MgCl concentration by half).
I want to make up solutions of brine containing 15% MgCl and 29% MgCl and a third solution containing 31% MgCl.
I think that if I could work out how many grams or miligrams of flake are equal to 1%, then I could multiply that figure by 15, and 29 and 31 consecutively to get my answers ... but I'm not sure how to do this.
Is this correct, please:
47 gram of MgCl = 47,000mg of MgCl
Therefore 47,000 divided by 100 = 470
Therefore 470mg of MgCl = 1%
Therefore 470mg of MgCl flake x 15 = 7,050 mg (?approx 7 grams)
Therefore if I add 7 grams of MgCl flake to 100ml of water will I have approximately 15% MgCl concentration?