A student adds 10.00mL of a liquid acetone to a vial that weighs 4.53 g. The mass of the liquid and the vial is 12.24g. Calculate density of the liquid
A student adds 10.00mL of a liquid acetone to a vial that weighs 4.53 g. The...
An empty graduated cylinder weighs 56.90 g. A student puts 24.6 mL of an unknown liquid into the cylinder and the mass of the cylinder plus the liquid equals 98.47 g. What is the density of the unknown liquid (in g/mL)?
A student weighs out 0.975 g of magnesium oxide (MgO, MM = 40.31 g/mol) and adds it to a constant pressure calorimeter containing 100.0 mL of 0.600 M HCl at 22.1°C. After the reaction stopped, the temperature of the solution inside the calorimeter was 25.2°C. Calculate the ∆H (in kJ) for the reaction. Assume the specific heat of the solution is 4.18 J/g°C and the density of the solution is 1.00 g/ml. MgO (s) + HCl (aq) → MgCl2 (aq)...
A chemistry student needs 20.0 g of acetone for an experiment. By consulting the CRC Handbook of Chemistry and Physics, the student discovers that the density of acetone is 0.790 g'cm . Calculate the volume of acetone the student should pour out. Round your answer to 3 significant digits. 00 x 5 ?
A student observes a ppt formed when she adds sodium iodide/acetone to an alkyl chloride. The ppt she observes is: sodium iodide Csodium chloride alkyl iodide a complex of acetone and alkyl chloride
Name Section/CRN POST LABORATORY QUESTIONS 1. A student weighs out 3.52 g. of salicylic acid in a 100 ml flask and adds 2.3 mL of acetic anhydride (density 1.080 g/mL). Determine the maximum (theoretical) number of grams of acetylsalicylic acid she can prepare. 2. If the student obtained 4.21 g, of aspirin, calculate the % yield. Briefly, explain why she might have obtained this amount of product. 3. The solubility of Aspirin (acetylsalicylic acid) at 25 °C is 3.0 mg/mL...
A student weighs out 3.68 g of CrBr2, transfers it to a 125. mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 125 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of chromium(II) bromide in the resulting solution? _____ M Please show steps to solve!
A student weighs out 13.8 g of Ca(CH3COO)2, transfers it to a 500. mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 500 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of calcium acetate in the resulting solution? ____ M
A student weighs out 14.6 g of AlBrz, transfers it to a 300 mL volumetric flask, adds enough water to dissolve the solid and then adds water to the 300 mL mark on the neck of the flask. Calculate the concentration (in molarity units) of aluminum bromide in the resulting solution? Calculate the mass, in grams of sodium iodide that must be added to a 250 mL volumetric flask in order to prepare 250 mL of a 0.138 M aqueous...
A student weighs out a 3.07 g sample of NiF2, transfers it to a 250. mL volumetric flask, adds enough water to dissolve it and then adds water to the 250. mL tick mark. What is the molarity of nickel(II) fluoride in the resulting solution?
A student weighs out a 14.4 g sample of KBr, transfers it to a 500. mL volumetric flask, adds enough water to dissolve it and then adds water to the 500. mL tick mark. What is the molarity of potassium bromide in the resulting solution? Molarity = M