What is the mass percentage of 25 g KCl in 175 g of solution?
Mass percentage is calculated as the mass of a component divided by the total mass of the mixture, multiplied by 100%
please help with this
2CBN Mass of evaporating dish Volume of KCl solution Mass of evaporating dish and KCl solution Mass of evaporating dish and dry KCI (1" heating) Mass of evaporating dish and dry KCI (2 heating) 54 345 595 mL 62 245 g 555489 55 5379 Using the data above, calculate the mass percent of KCl in the original KCl/water solution Show all work
An aqueous solution of KCI has 30. g of KCl dissolved in 100. g of water at 80'C. what additional mass of KCl can be added to the solution before reaching the saturation point? (Show work) e.
KCl and KBr are both ionic solids. A mixture of KCl and KBr has a mass of 3.595 g. When this mixture is heated in the presence of excess Cl2, all of the KBr is converted to KCl. If the total mass of KCl present after this reaction is 3.129 g, what percentage (by mass) of the original mixture was KBr? (HINT: Be sure that you understand why the mass of the sample has decreased. It may help if you...
A solution was prepared by dissolving 39.0g of KCl in 225 g of water. 1. Calculate the mass percent of KCl in the solution. 2. Calculate the mole fraction of KCl in the solution. 3. Calculate the molarity of KCl in the solution if the total volume of the solution is 239 mL. 4. Calculate the molality of KCl in the solution.
What mass of KCl (MW 74.5513) in grams is needed to prepare 100 mL of a 1.3 M solution of KCl?
A 1.000 L solution contains 0.5844 g NaCl (molar mass 58.44 g/mol) and 7.455 g KCl (molar mass 74.55 g/mol), both strong electrolytes. The concentration of Cl− ions in this solution is (A) 0.1000 mol/L (B) 0.1100 mol/L (C) 0.2000 mol/L (D) 1.000 mol/L (E) 1.100 mol/L
Calculate the concentration of each solution in mass percent
Part A 142 g KCl in 618 g HO VO A dD ? % mass% Submit Request Answer Part B 29.3 mg KNO3 in 9.63 g H20 ? mass Request Answer Submit Part C 9.16 g C2H,0 in 78.1 g H,O VOAED mass % Request Answer Submit
MALL HELE PRESE BE Mole fraction of KCl in a solution containing 10 g of it (i.e. KCI) (atomic mass of KCL = 74.5) in 100 g of water is
What is the molarity of a solution containing 15.2 g of KCl in 354 mL of solution?
Please answer the questions below to three significant figures. a) What mass of KCl is required to make 44.0 mL of a 0.270 M KCl solution? .......... g KCl b) How many moles of potassium ions are present in the solution? ........ mol