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).
The compound Na2CO3 x 10H2O has a total of 10 water molecules. The percentage of water in this compound is calculated by dividing the molar mass of water (18 g/mol) by the total molar mass of the compound, then multiplying by 100. Therefore, the percentage of water in Na2CO3 x 10H2O is 46.7%.
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
The correct name of the compound Na2CO3ยท10H2O is sodium carbonate decahydrate.
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
Na2B4O7-10H2O is the chemical formula for Borax, which is a compound made up of sodium (Na), boron (B), oxygen (O), and water molecules (H2O). It is not an element on the periodic table, but rather a hydrate compound.
No, when calculating the mass of borax needed for a standard solution, you only consider the anhydrous (water-free) form of the compound. The water molecules incorporated in the crystal structure are not included in the calculation of the mass.
Na2CO3-10H2O
The correct name of the compound Na2CO3ยท10H2O is sodium carbonate decahydrate.
Technically it is a mixture called a hydrate. This particular one is sodium carbonate decahydrate.
The chemical formula for sodium carbonate decahydrate, Na2CO3ยท10H2O, indicates that each formula unit of sodium carbonate is associated with 10 water molecules. This specific ratio of water molecules to sodium carbonate ions is due to the way the compound forms and crystallizes in its solid state.
mass of Na2CO3 with 10H2O of crystallisation is 286g
Na2CO3.10H2O --> Na2CO3 + 10H2O
The correct name of the compound CuSO4 10H2O is copper(II) sulfate pentahydrate.
A mineral of hydrous sodium carbonate, Na2CO3·10H2O, often found crystallized with other salts.
The compound Na2SO4ยท10H2O is called sodium sulfate decahydrate.
Sodium carbonate x water --> sodium carbonate (in solution)--> Sodium Carbonate Decahydrate
The chemical symbol for the compound borax is Na2B4O7ยท10H2O.
Borax is a compound. It is composed of sodium, boron, oxygen, and water molecules structured in a specific chemical formula (Na2B4O7โข10H2O).