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Which mass of O2(g) reacts completely with 5.6 grams of CO(g) to produce 8.8 grams of CO2(g)?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
Which numerical setup can be used to calculate the formula mass of C9H11NO2?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
Which combination of solute and solvent will form a saturated solution when thoroughly mixed at 20.°C?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
The mass of a sample of nickel is determined to be 20.40 grams. How many significant figures are used to express this mass?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
Which compound is most soluble in water?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
Which ion has the greatest mass?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
What is a chemical name for the compound PbO2?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
A solution has a mass of 2000. grams and contains 0.050 gram of dissolved solute. What is the concentration in parts per million of this solution?
15 grams KClO3 in 100. grams H2O
E
4
4
3.2 g
25 ppm
1
9(12 u) + 11(1 u) + 1(14 u) + 2(16 u)
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