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WorksheetsG9 IG Chemistry Quiz
Total questions: 20
Worksheet time: 1hrs 2mins
When calculation the molarity, which mathematical triangle do we need to use?
The solute is the ______part of the solution.
solid
liquid
gas
none of the above
This is the formula for number of moles=24 dm3volume
molar calculations involving gases
molar mass calculations
relative atomic mass
mole calculations
What are the correct values of rtp?
22 degrees celsius/101.3kPa
37 degrees celsius/101.3kPa
0 degrees celsius/101.3kPa
25 degrees celsius/101.3kPa
What is the other name for concentration?
solute
solution
solvent
molarity
What is the molar volume of any gases at rtp?
32 dm3
24 dm3
101.3kPa
1 atm
1 dm3 is equal to
100 cm3
10ml
1L
1000 cm3
Read the questions carefully and answer A and B
(a)
Answer letter A
(a)
Answer letter B
(a)
A chemist determines that 1.26 g of iron reacts with 0.54 g of oxygen to produce rust. What is the percent composition of each element in the new compound?
(a)
In the lab, a chemist analyzed a sample of methanol and found that it was made 6.2 g of carbon, 4.1 g of hydrogen and 15.9 g of oxygen. What is the percent composition of each element?
(a)
A compound contains 1.2 moles of carbon and 3.2 moles of hydrogen. What is the percent composition by mass of each element in the compound
(a)
Find the percent compositions of Copper and Bromine in CuBr2
(a)
Find the percent compositions of Na, O, and H in NaOH
(a)
What is the volume of 2.0 mol of oxygen (O)2 at room temperature and pressure (RTP)?
(a)
What is the volume of 4.50 mol of nitrogen (N2) at room temperature and pressure (RTP)?
(a)
To make a 4.00 M solution, how many moles of solute will be needed if 12.0 liters of solution are required?
(a)
How many moles of sucrose are dissolved in 250 mL of solution if the solution concentration is 0.150 M?
(a)
What is the molarity of a solution of HNO3 that contains 12.6 grams HNO3 in 1.0 L of solution?
(a)
