CuSO4 + X h20 -> CuSO4 +xH20 ...
a 9.6 g sample of CuSO4 was allowed to absorb water. After absorption the sample weighed 15.01 grams. What is the value of x?
g H2O = 15.01-9.6 = ??
moles water = grams/molar mass H2O.
moles CuSO4 = grams/molar mass.
Divide moles CuSO4 by itself (which gives you 1.000), then divide moles H2O by the same number. That will be X.
To find the value of x in the equation CuSO4 + xH2O, you need to determine the mass of water absorbed by the CuSO4.
1. Start by finding the mass of water absorbed:
Mass of CuSO4 after absorption = 15.01 g
Original mass of CuSO4 = 9.6 g
Mass of water absorbed = Mass after absorption - Original mass
Mass of water absorbed = 15.01 g - 9.6 g
Mass of water absorbed = 5.41 g
2. Convert the mass of water absorbed to moles:
Molar mass of H2O = 18.015 g/mol
Moles of water absorbed = Mass of water absorbed / Molar mass of H2O
Moles of water absorbed = 5.41 g / 18.015 g/mol
Moles of water absorbed = 0.2999 mol (approximately)
3. Determine the value of x:
To find x in the equation CuSO4 + xH2O, we can equate the moles of water absorbed to the moles represented by x:
Moles of water absorbed = Moles of xH2O
0.2999 mol = x mol
Therefore, the value of x is approximately 0.2999.
To find the value of x in the chemical equation CuSO4 + xH2O -> CuSO4 + xH2O, we need to determine how much water was absorbed by the CuSO4 sample. This can be done by calculating the difference in mass before and after the absorption of water.
The given information states that the initial mass of the CuSO4 sample was 9.6 grams, and after absorbing water, the final mass became 15.01 grams.
To find the mass of water absorbed, we subtract the initial mass from the final mass:
Mass of water absorbed = Final mass - Initial mass
Mass of water absorbed = 15.01 g - 9.6 g
Mass of water absorbed = 5.41 g
Therefore, the value of x, representing the number of moles of water absorbed, can be calculated by dividing the mass of water absorbed by the molar mass of water (H2O).
The molar mass of water (H2O) is:
2(atomic mass of hydrogen) + atomic mass of oxygen
2(1.008 g/mol) + 16.00 g/mol
2.016 g/mol + 16.00 g/mol
18.016 g/mol
Using this molar mass, we calculate the value of x:
x = Mass of water absorbed / Molar mass of water
x = 5.41 g / 18.016 g/mol
x ≈ 0.2997 moles
Therefore, the value of x is approximately 0.2997 moles.