Quantity_rel

# Quantity_rel - Quantity Relationships in Chemical Reactions...

This preview shows pages 1–3. Sign up to view the full content.

1 Quantity Relationships in Chemical Reactions 2AgNO 3 + Na 2 CO 3 Ag 2 CO 3 + 2NaNO 3 what is the ratio of the reactivity 2 molecules AgNO 3 2 moles NaNO 3 1 molecule AgNO 3 1 mole Na 2 CO 3 ex: How many moles of Na 2 CO 3 are needed to react with 22 moles of AgNO 3 ? Given: 22 moles AgNO 3 wanted: moles of NaCO 3 ex: How many grams of NaNO 3 is produced from 4.00 moles Na 2 CO 3 ? Given: 4 moles Na 2 CO 3 wanted: grams NaNO 3 m.m.: 85.0g NaNO 3 4.00 moles Na 2 CO 3 1 mole Na 2 CO 3 2 mole NaNO 3 1 mole NaNO 3 85.0 g NaNO 3 = 680 g NaNO 3 H.2 Mass Calculations Three steps to convert: How to solve a Stoichiometry problem 1. mass A moles A 2. moles A moles B (balanced formula) 3. moles B mass B 22 moles AgNO 3 1 mole Na 2 CO 3 2 mole Ag NO 3 = 11 mole Na 2 CO 3

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 mass of given (A) moles of given (A) moles of wanted (B) mass of wanted (B) x mol G x mol W x g W g G mol G mol W (step 1) (step 2) (step 3) EX: How many g of Fe 2 O 3 is produced by reacting 3.5g of Fe?
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 09/02/2011 for the course CHEM 2 taught by Professor Harrison during the Spring '11 term at West Valley.

### Page1 / 5

Quantity_rel - Quantity Relationships in Chemical Reactions...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online