A chemist adds 1.05 L of a 2.20 mol/L silver nitrate (AgNOs) solution to a reaction flask. Calculate the moles of silver nitrate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.
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- Suppose that you are closing a cabin in the north woods for the winter and you do not want the water in the toilet tank to freeze. You know that the temperature might get as low as 30. C, and you want to protect about 4.0 L water in the toilet tank from freezing. Calculate the volume of ethylene glycol (density = 1.113 g/mL; molar mass = 62.1 g/mol) you should add to the 4.0 L water.1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?A chemist adds 295.0mL of a 1.21/molL aluminum chloride AlCl3 solution to a reaction flask. Calculate the mass in grams of aluminum chloride the chemist has added to the flask. Be sure your answer has the correct number of significant digits.
- A chemist adds 145.0 mL of a 0.00260 mol/L calcium sulfate (CaSO.) solution to a reaction flask. Calculate the millimoles of calcium sulfate the chemist has added to the flask. Be sure your answer has the correct number of significant digits. |mmol x10 ?A chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.0152 µumol of magnesium fluoride into a 200. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's magnesium fluoride solution. Be sure your answer has the correct number of significant digits. mol olo L ArA chemist prepares a solution of magnesium fluoride (MgF,) by measuring out 0.0118 µumol of magnesium fluoride into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's magnesium fluoride solution. Be sure your answer has the correct number of significant digits. mol x10 L
- A chemist adds 1.65 L of a 4.1 mol/L potassium iodide (KI) solution to a reaction flask. Calculate the millimoles of potassium iodide the chemist has added to the flask. Be sure your answer has the correct number of significant digits. |mmol x10A chemist adds 400.0mL of a 3.3/molL silver nitrate AgNO3 solution to a reaction flask. Calculate the millimoles of silver nitrate the chemist has added to the flask. Be sure your answer has the correct number of significant digits.Suppose 0.377 g of potassium chloride is dissolved in 100. mL of a 37.0 m M aqueous solution of silver nitrate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the potassium chloride is dissolved in it. Be sure your answer has the correct number of significant digits. M D x10 X S
- A chemist prepares a solution of potassium dichromate (K, Cr,0,) by measuring out 63.7 umol of potassium dichromate into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's potassium dichromate solution. Be sure your answer has the correct number of significant digits. H mol LA chemist prepares a solution of barium chlorate BaClO32 by measuring out 50.4g of barium chlorate into a 250.mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's barium chlorate solution. Be sure your answer has the correct number of significant digits.A chemist prepares a solution of silver nitrate (AgNO3) by measuring out 121. g of silver nitrate into a 300. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver nitrate solution. Be sure your answer has the correct number of significant digits. Ú mol/L x10 X
