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calculate the molarities of each of the ions in a solution prepared by diluting 78mL of 4.5M Ca(ClO3)2 (aq) to 156mL with water. I don't understand how to answer this question.

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calculate the molarities of each of the ions in a solution prepared by diluting 78mL of 4.5M Ca(ClO3)2 (aq) to 156mL with water.

Top answer: First determine the concn of the molecule. That is done one of two ways; 1) 4.5M x (78/156) = ? or Read more.
A) A solution was prepared by dissolving 1.113 g of MgCl2 into water and made up to 50.0 ml, calculate the molar concentration

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A stock solution containing Mn2+ ions was prepared by dissolving 1.168 g pure manganese metal in nitric acid and diluting to a

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Top answer: Ionic Strength= 1/2 (.01)*2+1/2(.02)*1=.01+.01=.02M Read more.
A 35ml 0.1M AgCl solution is mixed with 15ml 0.25M MgCl2 solution. Calculate the moles and molarities of the Ag+, NO3-,Mg2+, and

Top answer: I think it was 35 mL of 0.1M AgNO3, not AgCl. When the two solutions are mixed the reaction is: Read more.
A stock solution containing manganese ions was prepared by dissolving 1.542 g pure manganese metal in nitric acid and diluting

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A solution is prepared by diluting concentration HNO3 to 2.0 M,Calculate PH.

Top answer: HNO3 is a strong acid; i.e., it ionizes 100%. So 2M HNO3 = (H^+) = 2M pH = -log(H^+) = -log(2) = Read more.
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Calculate the molarity of a solution prepared by dissolving 10.0 grams of NaOH and then diluting the solution to 500mL.

Top answer: 10.0gNaOH x (1moleNaOH / 39.99711gNaOH) = .250moleHaOH .250moleNaOH / .500L = .500M Is this right? Read more.
What formula would you use to solve this problem? I'm stuck.You have prepared a solution by diluting 12.00mL of 0.790M

Top answer: mL1 x M2 = mL2 x M2 12 x 0.790 = 50 x M2 OR, since it's dilution, you start with 0.790M and multiply Read more.