Agas mixture contains 0.150 mol of oxygen (o2) gas, 0.419 mol of nitrogen (n2) gas. and 0.211 mol of argon (ar) gas in a 0.250 l flask at 298 k. what is the total pressure of the mixture?

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

Chemistry worksheet - i am not sure what they are asking for exactly?

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate