A certain organic compound O has a solubility in acetone of 0.133 mL at 10. °C. Calculate the mass of O that's dissolved in 650. mL of a saturated solution of O in acetone at this temperature. Be sure your answer has the correct unit symbol and number of significant digits.

When potassium chlorate (KClO3) is heated from 30oC to 70oC, how much solute must be added to keep the solution saturated?

A student dissolves 18. g of biphenyl (C₁2H₁0) in 100. mL of a solvent with a density of 1.04 g/mL. The student notices that the volume of the solvent does not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity 1 = molality 0 = x10 0|0

Predicting the products of dissolution The names and chemical formulae of some chemical compounds are written in the first two columns of the table below. Each compound is soluble in water. Imagine that a few tenths of a mole of each compound is dissolved in a liter of water. Then, write down in the third column of the table the chemical formula of the major chemical species that will be present in this solution. For example, you know water itself will be present, so you can begin each list with the chemical formula for water (H₂O). 6 Note: "major" chemical species are those present in concentrations greater than 10 compound potassium cyanide copper(II) iodide sucrose formula KCN Cul₂ C12H₂2O11 major species present when dissolved in water 0 0 0 × mol/L. On 3/5 0,0,... S ? allo 18 Ar