Asked by lastkingwamadiwa
Calculate the mass of calcium chloride to make 0.2M calcium chloride solution
Answers
Answered by
DrBob222
It all depends upon how much 0.2 M solution you want to make. You want 100 mL, 500 mL, 5 L? Let's say you want 200 mL.
Ask how many moles do I need for this soltion? That's
M x L = 0.2 M x 0.200 = 0.04 moles.
Then grams = moles x molar mass = 0.04 x molar mass CaCl2. You can figures molar mass. Ca = 40.078 + 2*35.453 = ?
Post your work if you get stuck.
Ask how many moles do I need for this soltion? That's
M x L = 0.2 M x 0.200 = 0.04 moles.
Then grams = moles x molar mass = 0.04 x molar mass CaCl2. You can figures molar mass. Ca = 40.078 + 2*35.453 = ?
Post your work if you get stuck.
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