Suppose you obtain 0.0166 mol for the amount of anhydrous salt and 0.1328 mol fo

Question

Suppose you obtain 0.0166 mol for the amount of anhydrous salt and 0.1328 mol for the amount of water. What is the formula of the hydrate? Let X be the formula of the anhydrous salt. Experiment #9; Under pressure Which four variables or properties arc needed to describe the state of a gas? Which of these variables does Boyle's Law investigate? How do the 2 variables in the above question depend upon each other? An SI Unit of Pressure is _____ A sample of gas occupies a volume of 7.50 L at 0.988 atm and 25.0 degree C. What would be the volume of the gas at 25.0 times if the pressure is increased to 1.52 kPa ? 1 atm - 1.01325 times 10^5 Pa Experiment #10: Atomic Structure Suppose a photon has an energy of 1.8 times 10^-10 J. What is its corresponding frequency? For the photon above, what is the corresponding wavelength in nm? Which ion produces a purple flame? Na+, Li^+, K^+. CI-, SO_4^2-

Explanation / Answer

4)
0.0166 mol of X has 0.1328 mol of H2O
moles of H2O per mol of X = 0.1328 / 0.0166 = 8 mol

so, there is mol of H2O for each mol of X

The formula for hydrate will be
X.8H2O

I am allowed to answer only 1 question at a time

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