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a mixture of na2so4 and nacl weighing 1.2559 grams is dissolved in 50 ML of water,...
453 mg of a mixture of BaCl2 and RaCl2 was dissolved in 500 mL of water and 100.0 mL of 1 M Na2SO4 was added. The resulting precipitate was filtered through a tared weighing crucible, washed and dried at 110 C. the weight of the precipitate was 505 mg. Calculate the mole% Radium in the mixture. MW: BaCl2 208.23, RaCl2: 296.09, BaSO4: 233.38, RaSO4: 322 Why would this experiment never be conducted in a teaching laboratory?
(7. Consider the reaction as follows: Na2SO4(aq) + BaCl2(aq) → BaSO4(s) + 2 NaCl(aq) A 1.00-mol sample of sodium sulfate was placed into the barium chloride aqueous solution to make solid barium sulfate. (a) How many gram of sodium sulfate was placed into the reaction solution? (b) What is the maximum mass of NaCl formed? (c) If 78.9 g of NaCl was obtained, what was the percent yield of NaCl? 3. How many liters of 0.186 M of NaOH (aq)...
Suppose a 12.42g mixture of NaCl and CaCl2 is dissolved in water. To this solution, an excess of AgNO3 solution is added resulting in the formation of 31.12g of the precipitate. Calculate the % by mass of NaCl and CaCl2 in the original mixture. Show all work.
you weigh out 7.25 grams of NaCl and dissolve this sample in 50 mL of deionized water, and then you put it in an empty volumetric flask weighing 57.221 g. After the whole thing has dissolved, you add water all the way up to the 100.0 mL mark of the volumetric flask (flask and solution together weighs 162.9145 g.) what’s the mass % of NaCl in this solution?
Suppose a 12.42g mixture of NaCl and CaCl2 is dissolved in water. To this solution, an excess of AgNO3 solution is added resulting in the formation of 31.12g of the precipitate. Calculate the % by mass of NaCl and CaCl2 in the original mixture. Show all work.
A 1.546g sample containing a mixture of only k2So4 and kno3 was dissolved in water an treated with BaCl2, precipitating the So42- as Baso4(pksp=9.96) the resulting precipitate was isolated and yielded 863.5mg of baso4. What is % in mass of K2So4 and Kno3
A 0.8690 g sample of a mixture of NaCl and KCl is dissolved in water, and the solution is then treated with an excess of AgNO3 to yield 1.933 g of AgCl. Calculate the percent by mass of each compound in the mixture. % mass NaCl = ? % mass KCl = ?
How many grams of solid precipitate is produced if 25.34 mL of 0.113 M BaCl2 is added to an excess of aqueous sodium sulfate? Hint: First write a balanced equation
A 0.3146-g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 53.60 mL of 0.08765 M AgNO3(aq) to precipitate the Cl
A 0.3146 g sample of a mixture of NaCl(s) and KBr(s) was dissolved in water. The resulting solution required 51.40 mL of 0.08765 M AgNO3(aq) to precipitate the Cl−(aq) and Br−(aq) as AgCl(s) and AgBr(s). Calculate the mass percentage of NaCl(s) in the mixture.