Chemistry Spring Semester Final Review
Quiz by Devon Roesener
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- Q1
What is the correct value for Avogadro's number?
6.022 X 1023
30s - Q2
How many moles of potassium are in 78.20 g K?
2.000 mol K
30s - Q3
One mole of nitrogen has a mass of _____ g.
28.01 g
30s - Q4
One mole of antimony has a mass of _____ g.
121.76 g
30s - Q5
What is the molar mass of aluminum sulfate?
342.15 g
30s - Q6
How many molecules (mlcs) of nitrogen monoxide are in a 22.5 g sample?
4.51 X 1023
30s - Q7
A lead fishing weight contains 0.19 mol of lead atoms. What is the mass?
39.37 g
30s - Q8
How many moles of O are in 12.8 mol Fe(NO3)3?
115.2
30s - Q9
How many grams of O are in 3.2g of Ca(NO3)2?
1.87 g
30s - Q10
a 700 gram iron ore sample was determined to contain 252 grams of iron. What is the mass percent of iron in the ore? (3 sig figs)
36.0 %
30s - Q11
Ca(OH)2
acid
base
20s - Q12
H2 SO4
base
acid
20s - Q13
Finish the neutralization reaction for the following acid and base: HI(aq) + NaOH(aq)
H2(g) + O2(g) + NaI(aq)
HNa(aq) + IOH(aq)
H2O(l) + INa(aq)
H2O(l) + NaI(aq)
30s - Q14
pH=9.2
basic
neutral
acid
20s - Q15
pOH = 12.1
basic
neutral
acidic
20s