How many moles of ethanol C2H6O, are in a 10.0g sample

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

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

Answer explain why it is not possible to deduce a complete order of reactivity.