Conversions I
What is the mass of 1 mole of water?
18 g
What is the mass of 1 mole of NH3?
17 g/mol
Balance the reaction between hydrogen and nitrogen gas to make ammonia (NH3).
3H2 + N2 --> 2NH3
All groups compete- write your closest estimate. The group that gets the closest guess wins.
At what temperature does air become a liquid (in F)?
-310 F
Chemical name for water
dihydrogen monoxide
How many moles are in 30 g of NH3?
1.76 mol
How many moles are in 41 g of CO2?
0.93 mol
Balance the equation between calcium hydroxide and silver (I) chloride. Include products. Hint: this is a double replacement reaction.
Ca(OH)2 + 2AgCl --> 2AgOH +CaCl2
Air is mainly a mixture of two gasses: ____ and ____
Oxygen and nitrogen
Dry ice is the solid form of this compound
Carbon dioxide (CO2)
What conversion factor do you use to convert grams of carbon dioxide to moles of carbon dioxide?
Molar mass
What conversion factor do you use to convert moles of water to the number of atoms of water?
Avogadro's number: 6.022 *10^23 atoms/mol
Balance the reaction between AgNO3 and MgSO4
2AgNO3 + MgSO4 --> Mg(NO3)2 +Ag2SO4
All groups compete- write your closest estimate. The group that gets the closest guess wins.
How many grams of salt (NaCl) are in the average adult human body?
200 g
All groups compete- write your closest estimate. The group that gets the closest guess wins.
By the time you feel thirsty, you've already lost about ___ % of your body's water.
1%
How many moles of O2 are needed to completely combust 64 moles of CH4?
128 mol
How many moles of water are produced when 16 moles of CH4 are combusted with excess oxygen?
32 moles
Balance the combustion reaction of C4H10 with O2.
2C4H10 + 13O2 --> 8CO2 +10H2O
What is the only letter that doesn't appear in the periodic table?
J
Fish scales are a common ingredient in this kind of makeup.
lipstick
How many grams of H2O are produced when 40 g of C2H6 are combusted with excess oxygen?
72 g
How many grams of CO2 are produced when 12 g of CH4 are combusted with excess oxygen?
33 g
Balance the combustion reaction of C3H7OH.
2C3H7OH + 9O2 --> 6CO2 + 8H2O
All groups compete- write your closest estimate. The group that gets the closest guess wins.
The human body contains enough carbon to provide graphite for ____ pencils.
9,000
All groups compete- write your closest estimate. The group that gets the closest guess wins.
____% of the average human brain consists of water.
78%