Hydrogen gas is collected by water displacement. If the barometric pressure is 752.0 torr and the water vapor pressure is 17.5 torr, what is the partial pressure of the hydrogen collected

734.5 torr

Explanation:

Let's find the difference between the barometric pressure and the water vapour pressure

Bp = 752 torr

Wp = 17.5 torr

Bp - wp

752- 17.5 = 734.5 torr

The partial pressure of the hydrogen collected is 734.5 torr

Explanation:The partial pressure of the hydrogen collected can be calculated using Dalton's law of partial pressure. Dalton's law of partial pressure states that  in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of the individual gases.

Mathematically,

P(total) = P1 + P2 + P3 + ... + Pn

From the question,

Parameters given:

Barometric pressure (Total pressure) = 752.0 torr

Water vapour pressure = 17.5 torr

Partial pressure of hydrogen = ??

Using,

P(total) = P(water vapour) + P(Hydrogen)

752.0 torr = 17.5torr + P(Hydrogen)

P(Hydrogen) = 752.0 torr - 17.5 torr

P(Hydrogen) = 734.5 torr

Therefore the partial pressure of the hydrogen collected is 734.5 torr

1.consider the following balanced equation and answer parts a through. show calculations for each part.  

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)  

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.  

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3  

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.  

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.  

explanation: