Na2SO4
10.0 grams Na2SO4 (1 mole Na2SO4/142.05 grams)(2 mole Na/1 mole Na2SO4)(22.99 grams/1 mole Na)
= 3.24 grams of sodium
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Amount of sodium sulfate required = 0.683 x 350/100 = 0.239The formula mass of sodium sulfate, Na2SO4 is 2(23.0) + 32.1 + 4(16.0) = 142.1 Therefore mass of sodium sulfate required = 0.239 x 142.1 = 34.0g Approximately 34 grams of sodium sulfate would be needed.
114g
The solubility of copper sulfate pentahydrate at 100 0C is 114 g/100 g water.
The percentage of sodium in NaCl is 39,666.So, 75 x 39,666/100= 29,75 g sodium in 75 g NaCl
Radium sulfate (formula RaSO4) will dissolve at 0.00021 g/100g of water. To determine this: Get the solubility product constant Ksp of the values. This will indicate how much solid gets dissolve in the solution. Also consider the effect on solubility (for example, common ions).
Amount of sodium sulfate required = 0.683 x 350/100 = 0.239The formula mass of sodium sulfate, Na2SO4 is 2(23.0) + 32.1 + 4(16.0) = 142.1 Therefore mass of sodium sulfate required = 0.239 x 142.1 = 34.0g Approximately 34 grams of sodium sulfate would be needed.
One liter of Benedict's solution contains 173 grams sodium citrate, 100 grams sodium carbonate, and 17.3 grams cupric sulfate pentahydrate.
89.3
89.3
114g
The solubility of copper sulfate pentahydrate at 100 0C is 114 g/100 g water.
Na2SO4 = 46+32+64 = 142 Na = 46/142 * 100 = 32.39 % S = 32/142 * 100 = 22.54 % O = 64/142 * 100 = 45.08 %
There is 2 mg of sodium per 100 grams of cucumber
The percentage of sodium in NaCl is 39,666.So, 75 x 39,666/100= 29,75 g sodium in 75 g NaCl
Radium sulfate (formula RaSO4) will dissolve at 0.00021 g/100g of water. To determine this: Get the solubility product constant Ksp of the values. This will indicate how much solid gets dissolve in the solution. Also consider the effect on solubility (for example, common ions).
16.67
About 18 mg per 100 grams.