What mass of potassium bromate crystallizes on cooling 356 g of a saturated solution at 80°C to 20°C?
100 g of water dissolve 34.0 g at 80 °C and 7 g of salt at 20°C​

What substance has a mass of 9.5g and volume of 2.1cm^3

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

A1.5l container holds p.50 grams of an unknown gas at a pressure of 0.44 atm and a temperature of 50.c what is the molar mass of the unknown gas