Vocabulary
Moles to Moles
Moles to Grams
100
What is the word for a number placed in front of a chemical symbol or formula to show how many atoms or molecules of a substance are involved in a reaction?

Coefficients

100

2 Mg + O2 ---->2 MgO


In the above reaction, if we have 4 moles of Mg used, how many moles of MgO would be produced? 

4 moles of MgO

100

How many grams are there in 10 moles of H2 ?

H2 has a molar mass of 2 grams

20 grams

200

 the ratio between the amounts in moles of any two compounds involved in a chemical reaction.

Molar Ratio

200

2 Mg + O2 ---> 2 MgO


In the above reaction, if we have 10 moles of MgO produced, how many moles of O2 were used?

5 moles of O2

200

How many moles are there in 32 grams of O2?

O2 has a molar mass of 32 grams

1 mole

300

 the mass in grams of one mole of a substance

Molar Mass

300

2 Ag2O ----> 4 Ag + O2


In the above reaction, how many moles of O would be produced if we used 17.6 moles of Ag2O

8.8 moles of O2

300

How many moles are there in 180 grams of chlorine? (not cl2, just cl) 


chlorine has a molar mass of 35.45

5.08 moles of chlorine

400
the number of atoms or molecules in one mole of a substance, equal to 6.023 × 1023.


Avogadro's Number

400

2 Ag2O ----> 4 Ag + O2 

If we finish with 34.6 moles of Ag, how many moles of Ag2O were used?

17.3 moles of Ag2O

400

How many grams are there in 16.3 moles of water?


water has a molar mass of 18g

293.4 grams of water

500

 the percent ratio of actual yield to the theoretical yield

Percent Yield

500

2 C4H10 + 13 O2 ----> 8 CO2 + 10 H2O


In the above reaction, if we used 142 moles of O2, how many moles of CO2 were produced? (Round to nearest whole number)

87 moles of CO2

500

How many moles are there in 1,523 grams of aluminum sulfate?


Aluminum sulfate has a molar mass of 342 grams.

(Round to second decimal point) 

4.45 moles

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