Test 2 Flashcards
1
Q
According to the following balanced reaction, how many miles of NO are formed from 8.44 moles of NO2 if there is plenty of water present? 3NO2(g) + H2O(l) -> 2HNO3(aq) + NO(g)
A
2.81 moles NO
2
Q
A solution of an electrolyte in water will
A
Carry an electric current
3
Q
How many moles of CH3CH2I are contained in 422 mL of 0.0950 M CH3CH2I solution?
A
4.01 x 10^-2 mol
4
Q
How many liters of a 0.0550 M KCI solution contain 0.163 moles of KCI?
A
2.96 L
5
Q
How many grams of sodium azide are required to produce 25.0g of nitrogen?
A
38.7g
6
Q
In an experiment, a 4.00g sample of CaO is reacted with excess water and 4.79g of Ca(OH)2 is recovered. What is the percent yield in this?
A
90.5
