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Molarity

Q. A student uses 0.854 kilograms of lead (II) fluorosilicate, PbSiF6 to make a 4.02L solution of aqueous lead (II) fluorosilicate. Determine the concentration of the solution.

Solved • Jun 7, 2019

Molarity

Q. How many grams of KNO3 will be required to prepare 800 mL of 1.40 M KNO3?

Solved • Jun 1, 2019

Molarity

Q. Find the molarity of a 17.0% by mass solution of sodium acetate, CH3COONa (molar mass = 82.0 g/mol) in water? The density of the solution is 1.09 g/mL.

Solved • May 31, 2019

Molarity

Q. A fictional cubed shaped bacterium bacterius cubis, occupies a volume of 3.0 femtoliters. this particular type of bacteria is known to communicate with its own species by secreting a small molecule called bacto X Could anyone help me solve questions C and D. Thank you!

Solved • May 28, 2019

Molarity

Q. A fictional cubed-shaped bacterium, Bacterius cubis, occupies a volume of 3.0 femtoliters. This particular type of bacteria is known to communicate with its own species by secreting a small molecule called bactoX ( MW=125.8 g/mol). B. Calculate the molarity (mol/L) of bactoX in the 1.5 μL sample volume if all of the bacteria were to simultaneously secrete all of the bactoX molecules contained within their cell bodies into the vial.

Solved • May 27, 2019

Molarity

Q. What happens to a glass of sugar solution when sugar is added to it? The number of moles of water increases, The number of moles of water decreases, The molarity of the solution increases, or The molarity of the solution decreases.

Solved • May 27, 2019

Molarity

Q. A chemist wishes to make a solution using 3.21 g of CoCl3 in which the total concentration of Cl– ions is equal to 0.233 mol/L. What must the final volume of the solution be?

Solved • May 20, 2019