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potassium chloride, KCl, molar mass = 74.55 g/mol What is the molality of a solution prepared by dissolving 21.7 g potassium chloride, KCl, in 225 g H 2 O? There are 2 steps to solve this one.
Question: Calculate the molar mass of potassium chloride, KCl. 6.74 g 54.5 g 67.4 g 74.6 g 19.0 gLipeint Balance the following chemical equation by placing a coefficient (including 1) in each answer box that is in front of each reactant and each product.
How many grams of KCl (Molar mass = 74.55 g/mol) are needed to make 439 mL of a 3.1 M solution? Answer to 2 decimal places.
Question: 4. Calculate the boiling point of 3.5 % KCl by mass in water)solution, assuming complete dissociation of solute. (Molar mass of KCI= 74.50 g/mol; Kb of water = 0.512 °C/mol.) 5. Use the data to calculate the heat of hydration of lithium chloride and sodium chloride.
What is the molar concentration of a 20.0% w/v (m/v) KCl solution? The information below may be helpful: Molar mass of KCl: 74.551 g/mol Density of water: 1.00 g/mL Enter your answer in standard notation with the correct number of significant figures. Molarity = M
The molar mass of CaCI2 is 111.0 g/mol and the molar mass of water is 18.02 g/mol. What is the molar mass of C6H12? How many grams of KCl are in 3.84 x 10^21 formula units of potassium chloride?
What mass of KCl (molar mass = 74.55 g/mol) must be added to 1.0 L of 0.0180 M Pb2+(aq) to initiate precipitation of PbCl2(s)? The Ksp of PbCl2 is 1.7 ´ 10 Here’s the best way to solve it.
Question: Calculate the molar mass for each of the following: Part A: KCl, salt substitute Express your answer to two decimal places and include the appropriate units. Part B: C6H5NO2, niacin (vitamin B3) needed for cell metabolism. Express your answer to two decimal places and include the appropriate units. Part C: C19H20FNO3, Paxil ...
Question: 78) How many grams of KCl (molar mass = 74.55 g) will be produced from the reaction of 50.0 mL of 0.300 M KOH with excess HCl? KOH aq + HCl aq → KCl aq + H2O(ℓ) A) 1.12 g B) 9.31 g C) 0.876 g D) 6.98 g E) 4.65 g 79) Which of the following compounds has the largest formula mass?
If you have 45.7 g KCl (molar mass = 74.55) and 821 mL of water (molar mass 18.02), what is the molarity? Give your answer in the correct number of sig figs. Molarity is equal to the moles of solute divided by the liters of solution.