Chapter 3

Question 1

what’s the difference between chemical and empirical formula

Answer 1

empirical gives you the elements in their simplest ratio

Question 2

define limiting reagent

Answer 2

reactant that gets consumed first completely when reaction goes to completion

Question 3

define theoretical yield

Answer 3

max amount of products produce by the reaction with a given amount of reactant

Question 4

difference between actual and theoretical yield

Answer 4

theoretical yield is calculated while actual is experimental

Question 5

what are the steps to solve a stochiometry problem

Answer 5

1- balance equation
2- convert the mass of reactants into moles
3- define the appropriate mole ratio
4- convert value into required unit (g or mol)

Question 6

how can you go from the formula of a compound to it’s mass composition

Answer 6

through the mass percent formula