Density
The density of silver (Ag) is 10.5 g/cm3. Find the mass of Ag that occupies 965 cm3 of space.
1.01 x 104 g Ag
75 C in K
348
What is the atomic number of C
6
2 KClO3 --> 2 KCl + 3 O2
How many moles of )2 will be formed from 1.65 moles of KClO3
2.48
A 2.75 kg sample of a substance occupies a volume of 250.0 cm3. Find its density in g/cm3
11 g/cm3
44C in K
317
What is the number of protons in N
7
2 KClO3 --> 2 KCl + 3 O2
How many moles of KClO3 are needed to make 3.50 moles of KCl
3.5
Under certain conditions, oxygen gas (O2) has a density of 0.00134 g/mL. Find the volume
occupied by 250.0 g of O2 under the same conditions.
1.87 x 105 mL
316 K in C
43
What is the element with an atomic number of 8
O
2 KClO3 --> 2 KCl + 3 O2
How many moles of KCl will be formed from 2.73 moles of KClO3
2.73
Find the volume that 35.2 g of carbon tetrachloride (CCl4) will occupy if it has a density of 1.60
g/mL.
22.0 mL
285 K in C
12
what is the mass number of C (has 6 neutrons)
12
4 Fe + 3 O2 --> 2 Fe2O3
How many grams of Fe2O3 are produced when 17.0 grams of O2 is reacted?
56.6
The density of ethanol is 0.789 g/mL at 20oC. Find the mass of a sample of ethanol that has a
volume of 150.0 mL at this temperature.
118.35 g ethanol
50 C in K
323
What is the mass number of uranium (has 146 neutrons)
238
4 Fe + 3 O2 --> 2 Fe2O3
How many grams of O2 are needed to react with 125 grams of Fe?
53.7