A chemist determines by measurements that 0.0900 moles of fluorine gas participate in a chemical reaction. Calculate the mass of fluorine gas that participates.Round your answer to 3 significant digits.

Calculate the number of atoms in 4 moles of Fluorine?a) 6.022 X1023b) 12.044X1023c) 18.066 X1023d) 24.088 x 1023

Problem PageQuestionA chemist adds 500.0mL of a /0.128gL copper(II) fluoride CuF2 solution to a flask.Calculate the mass in grams of copper(II) fluoride the chemist has added to the flask. Round your answer to 3 significant digits.

Boron trifluoride gas is collected at −10.0°C in an evacuated flask with a measured volume of 40.0L. When all the gas has been collected, the pressure in the flask is measured to be 0.470atm .Calculate the mass and number of moles of boron trifluoride gas that were collected. Be sure your answer has the correct number of significant digits.

A chemist adds 125.0mL of a 0.77M barium acetate BaC2H3O22 solution to a reaction flask. Calculate the mass in grams of barium acetate the chemist has added to the flask. Round your answer to 2 significant digits.

A sample of an unknown compound is vaporized at 200.°C. The gas produced has a volume of 2230.mL at a pressure of 1.00atm, and it weighs 5.98g.Assuming the gas behaves as an ideal gas under these conditions, calculate the molar mass of the compound. Be sure your answer has the correct number of significant digits.