there are 159.6g of cupric sulfate and 90.1g of waters63.5gCu+32.1gS+(16.0*4)gO=159.6gCuSO4 5(1.01*2)gH+5(16.0)gO=90.1g5H20
therefore, the gram formula mass is 249.7g
the percent composition of water is 36.1%((90.1g)/(249.7g))*100%
p.s.-my basic math skills suck so you may want to take the given values and crank them through the equation to check
Your math is correct. I ran the problem myself and got the same answer. We even did this as a lab in Chemistry class and I got near the same answer (35% in an unregulated test).
CuSO4 x5H20 is the molecular formula for cupric sulfate pentahydrate. Its molecular weight of 247.9 grams per mole. Also, the molecular weight of water is 18.02 grams per mole. The molecule is a pentahydrate, meaning it has 6 waters. This means 108.1 grams of each cupric sulfate pentahydrate is composed of water. 90.1 grams of water divided by the total mass of 249.7 equals .36. The answer then is 36% water.
The molar mass of CuSO4 is 159.61 grams per mole. The molar mass of 5 moles of water is 90.1 grams. Then water makes up 36.1 percent of the crystal.
Mass of h2o- 5X18 = 90 mass of cuso4=160g thus, % of h2o= 90/160x100=56.2%
The molar mass of Na2CO3 is 105.988 g/mol. The molar mass of H2O is 18.0153 g/mol. The total weight of the compound then is 286.141 grams. Water then comprises 62.96 percent of the compound.
The percentage of water is 62,9 %.
36.08
mass of Na2CO3 with 10H2O of crystallisation is 286g
No. Magnesium sulphate is a compound containing magnesium, sulfur and oxygen, with the formula MgSO4. Borax is a compound containing Boron. Borax is generally described as Na2B4O7·10H2O
screw u
a combustion reaction does not produce a precipitate an example is 2C4H10 + 13O2 -> 8CO2 + 10H2O
10H2O = 10 H2O so there will be 10 moles of water
Na2CO3-10H2O
Technically it is a mixture called a hydrate. This particular one is sodium carbonate decahydrate.
Sodium carbonate decahydrate is the name of the compound Na2CO3·10H2O, because 'deca' means 'ten'.The term hydrated sodium carbonate is commonly used to encompass the monohydrate (Na2CO3·H2O), the decahydrate and the heptahydrate (Na2CO3·7H2O).Both the hepta- and the decahydrate are partially transformed into the monohydrate thermonatrite Na2CO3·H2O when left over in dry air.Anhydrous (no H2O) sodium carbonate (Na2CO3) is formed when heating Na2CO3·H2O or NaHCO3 or Na3H(CO3)2·2H2O (trona) up to 150o-200oC (this is called calcination).
mass of Na2CO3 with 10H2O of crystallisation is 286g
Na2CO3.10H2O --> Na2CO3 + 10H2O
A mineral of hydrous sodium carbonate, Na2CO3·10H2O, often found crystallized with other salts.
Copper Sulfate Deca Hydrate
Sodium carbonate x water --> sodium carbonate (in solution)--> Sodium Carbonate Decahydrate
it is used as table salt (NaC1), soda ash (Na2CO3) , baking soda (NaHCO3) , caustic soda (NaOH), Chile saltpeter (NANO3), and borax (Na2B4O7-10H2O)
CaCl2 (Calcium Chloride) 6H2O Na2SO4 (Sodium Sulfate) 10H2O Na2CO3 (Sodium Carbonate) 10H2O Na2HPO4 (Dibasic Sodium Orthophosphate) 12H2O Na2HPO4 (Dibasic Sodium Orthophosphate) 7H2O Na2S2O3 (Sodium Thiosulphate) 5H2O Ba(OH)2 (Barium Hydroxide) 8H2O
No. Magnesium sulphate is a compound containing magnesium, sulfur and oxygen, with the formula MgSO4. Borax is a compound containing Boron. Borax is generally described as Na2B4O7·10H2O
Formula: X.7H2OX is a compound