In a group assignment, students are required to fill 10 beakers with 0. 720 M CaCl2. If the molar mass of CaCl2 is 110. 98 g/mol and each beaker must have 250. ML of solution, what mass of CaCl2 would be used? Use Molarity equals StartFraction moles of solute over liters of solution EndFraction. 3. 13 g 38. 5 g 200 g 617 g.

Alarge marble is dropped in a graduated cylinder with 35ml of water in it.the water level increases to 49ml.what is the volume of the marble

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

The bond energy for the van der waals bond between two helium atoms is 7.9×10−4ev. assuming that the average kinetic energy of a helium atom is (3/2)kbt, at what temperature is the average kinetic energy equal to the bond energy between two helium atoms