Lecture 5 - Quantitative Relationship between Chemical Reactions (Part 1)

Mole Concept

1. 3

2. 5

1. What if I need 6 moles of H2O ilang CH4 ang ipapasok ko?

2. What if I react 10 moles of Oxygen how many moles of CO2 ang lalabas?

Chef Bino prepares his famous burrito with 125-gram of meat, 85-gram of

rice and 15-gram of spices in a 10 inches tortilla. How many burritos can he

make with a kilogram each of the rice, meat and spices?

A. 66

B. 12

C.11

D.8

1. Balance: 2 NaCI + H2SO4 → Na2SO4 + 2 HCI

2. Mass NaCl= Mass HCl → Moles HCl → Moles NaCl → Mass NaCl

B. 117 grams

Shortcut method