The normal boiling point of ethanol is 78.3C. At this temperature, the vapour pressure of an ethanolic solution is 96 kpa. Calculate the mole fraction of the solute

Nickel crystallizes in the face-centered cubic (fcc) lattice. the density of the metal is 8902 kg/m3. calculate the radius of a nickel atom.

Agas has a volume of 0.7 l at 300 mmhg. what would be the new volume at 900 mmhg

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread