Saved Question 3
4 points
A sample of gas weighing 0.494 g is collected in a flask with a volume of 0.129 L at 372.6 K when the atmospheric pressure is 0.976 atm. What is the approximate molar mass of the gas?

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?

Achemical equilibrium between gaseous reactants and products is shown. n2(g) + 3h2(g) ⇌ 2nh3(g) how will the reaction be affected if the pressure on the system is increased? it will shift toward the reactant side as there is lower pressure on the reactant side. it will shift toward the product side as there is higher pressure on the product side. it will shift toward the reactant side as there are a greater number of moles of gas on the reactant side. it will shift toward the product side as there are a fewer number of moles of gas on the product side.