Question

1) A glass vessel calibrated to contain 9.76 mL at 4degree C was found to weigh 22.624 g when empty and dry. Filled with a soduim chloride (NaCl) solution at the same temperature , it was found to weigh 32.770 g. Calculate the solution's density.

2) the melting point of lauric acid and stearic acid are 43 degrees and 70 degrees C respectively. Are they solids liquids or gases at room temperature?

3) When water (d= 1.00/mL) and dichloromethane (d= 1.34 g/mL) are mixed, two layers are formed. which liquid is in the lower layer?

4) Which has the greater volume: 10g of hexane (d=0.66g/mL) or 10 g of toluene (d=0.87g/mL)? What is the voulme of each?

Please Explain