The arsenic in a 9.13g sample of pesticide was converted to AsO43- and precipitated as AgzAsO4 with 50.00 mL of 0.02105 mol L"AgNO3. The excess Age was then titrated with 4.75 ml
of 0.04321 mole L"'KSCN. Calculate the percentage of As2O3 (W. M. = 198.4 g mol-1) in the
sample.​

What is the density of the black hole

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

What is the volume occupied by 10.0 dm3 of gas at standard pressure after it has been compressedat constant temputure to 500.0 kpa?