Flashcards in Chapter 1.6 The Mole Deck (7)

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1

## The gram formula mass of a substance is the mass of

### one mole of that substance

2

## What is the mass of one mole of potassium oxide?

###
K2O

(39 x 2) + (16)

= 94g

3

## Mole Calculations: The the M, M, FM triangle, the M at the top of the triangle stands for what?

### Mass

4

## How many moles are present in 25g of calcium carbonate?

###
CaCO3

40+12+(16x3)

100g

Moles = Mass/FM

25/100 = 0.25 moles

5

## MCV triangle is used to calculate

### concentrations of solutions

6

## What triangle would you use for this question: Calculate the concentration of a sodium hydroxide solution if 2 moles are dissolved in water to give 500cm3 of solution?

### MCV

7