A 5.000 g mixture contains strontium nitrate and potassium bromide. Excess lead(II) nitrate solution, Pb(NO3)2 (aq) is added to precipitate out 0.7822 grams of PbBr2 (s). What is the percent by mass of potassium bromide in the mixture? What is the percent by mass of strontium nitrate in the mixture?

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Hubert KochLv2

13 Dec 2019

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For the following chemical reaction, what mass of lead(II) nitrate in grams will be needed to produce 2.27 mol of potassium nitrate?

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A 5.000 g mixture contains strontium nitrate and potassium bromide. Excess lead(II) nitrate solution, Pb(NO3)2 (aq) is added to precipitate out 0.7822 grams of PbBr2 (s). What is the percent by mass of potassium bromide in the mixture? What is the percent by mass of strontium nitrate in the mixture?

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