Chemistry Assignment (Empirical Formulae)

Chemistry Assignment (Empirical Formulae)

  • What is the empirical formula of a compound composed of 25.1 g of potassium (K) and 5.14 g of oxygen (O)? Insert subscripts as needed.

empirical formula:

  • A 17.02 g sample of a compound contains 5.43 g of potassium, K, 4.92 g of chlorine, Cl, and oxygen, O. Calculate the empirical formula.

Insert subscripts as needed.

  • A 9.32 g sample of a compound contains 5.95 g of iron, Fe, 1.10 g of phosphorus, P, and oxygen, O. Calculate the empirical formula for the compound.

empirical formula:

  • Determine the empirical formula for a compound that contains 58.8% C, 9.8% H, and 31.4% S by mass.
  • Determine the empirical formula for a compound that is 62.1% C, 10.4% H, and 27.5% O by mass.
  • What is the empirical formula of a compound composed of 3.25% hydrogen (H), 19.36% carbon (C), and 77.39% oxygen (O)by mass?

 

  • For the chemical reaction shown,

2H2O2(l)+N2H4(l)4H2O(g)+N2(g)

determine how many grams of N2 are produced from the reaction of 9.97 g of H2O2 and 6.35 g of N2H4……

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