IB Chemistry Topic 1 - Stoichiometry

Question 1

Assuming 4 tires per car body, how much excess reactant remains.

Accepted Answer

16 excess tires

Question 2

What is the molar mass of fluorine gas?

Accepted Answer

38 g/mol

Question 3

What name is given to the change of state from solid to gas?

Accepted Answer

Sublimation

Question 4

What is the temperature value for absolute zero?

Accepted Answer

-273°C

Question 5

If you end up with 3 hot dogs, what is the percent yield of this hypothetical reaction.

Accepted Answer

75%

Question 6

Under what temperature and pressure conditions does an ideal gas exist?

Accepted Answer

High temperatures and low pressures

Question 7

Matter is composed of:

Accepted Answer

Mass and volume

Question 8

What is the empirical formula for glucose?

Accepted Answer

CH2O

Question 9

How many atoms of oxygen are present in one formula unit of magnesium phosphate?

Accepted Answer

8

Question 10

What is the value of Avogadro's number, NA?

Accepted Answer

6.02 x 1023

Question 11

What volume of hydrogen would react with 6 dm3 of nitrogen?

Accepted Answer

18 dm3

Question 12

Which state of matter has an indefinite shape and a definite volume?

Accepted Answer

liquid

Question 13

In the following heating curve of a solid, what is happening from D to E?

Accepted Answer

The liquid is boiling.

Question 14

In chemistry, what isotope is the standard mass for weighing elements?

Accepted Answer

carbon-12

Question 15

In a salt solution, what is the solvent?

Accepted Answer

water

Question 16

What do you call a solution that is holding the maximum solute amount at a given temperature?

Accepted Answer

Saturated

Question 17

What law is shown in the following graph?

Accepted Answer

Boyle's Law

Question 18

How many elements are present in glucose?

Accepted Answer

3

Question 19

How many moles of water would you expect if you started with 10 moles of sodium bicarbonate?

Accepted Answer

5

Question 20

What type of reaction is shown?

Accepted Answer

Single displacement

Questions 20