what mass, in grams, of oxygen gas (o2) is contained in a 10.5-liter tank at 27.3 degrees celsius and 1.83 atmospheres? show all of the work used to solve this problem.

Answer : The mass of oxygen gas contained in the tank is 24.9 grams.

Explanation :

Using ideal gas equation:

where,

P = pressure of oxygen gas = 1.83 atm

T = temperature of oxygen gas =

V = volume of oxygen gas = 10.5 L

M = molar mass of oxygen gas = 32 g/mole

w = mass of oxygen gas = ?

R = gas constant = 0.0821 L.atm/mol.K

Now put all the given values in the above equation, we get:

Therefore, the mass of oxygen gas contained in the tank is 24.9 grams.

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l

the answer is 0.42 is that is an option. this question provides no info