Chapter 3, Problem 3.103P

a.

Interpretation Introduction

Interpretation:The empirical formula of a compound formed by heating 0.327 g of platinum in fluorine resulting in formation of 0.519 g of dark red, volatile salt needs to be calculated.

Concept Introduction: The molecular formula of a compound defines actual formula where subscripts of each elements represent actual number of each element in the compound. But empirical formula represents the proportions of elements present in compound in the simplest whole number ratio and not in actual numbers.

b.

Interpretation Introduction

Interpretation: The empirical formula of a compound formed by reacting 0.265 g of ${\text{PtF}}_6$ in excess of xenon gas resulting in formation of 0.378 g of an orange-yellow solid needs to be calculated.

Concept Introduction: The molecular formula of a compound defines actual formula where subscripts of each elements represent actual number of each element in the compound. But empirical formula represents the proportions of elements present in compound in the simplest whole number ratio and not in actual numbers.

c.

Interpretation Introduction

Interpretation:The mass percent of each given xenon fluoride needs to be calculated in the product mixture.

Concept Introduction: The formula used to calculate the mass percent is:

  $\text{Mass percent = }\frac{\text{Mass}}{\text{Total mass}}\times 100\%$