Question 67 of 75 ISA
When chromium metal is added to nitric acid, the following reaction
takes place
Cr (s) + 6 HNO3 (aq) → Cr(NO3)2 (aq) + 3 H20 (1) + 3 NO2 (g)
Calculate the volume of NO2 gas (in L) collected over water at 40.0 °C
when 19.3 g of chromium is added to excess nitric acid if the total
pressure is 675.0 torr. The vapor pressure of water at 40.0 °C is 55.3
torr.
2