What is the mass percent of a solution prepared by dissolving 12.6 grams of a solid into 49.1 g of water?
(give answer as a normal # with correct # sig figs)
What is the mass percent of a solution prepared by dissolving 12.6 grams of a solid...
QUESTION 8 What is the mass percent of a solution prepared by dissolving 18.9 grams of solid into 39.5 grams of water? OA) 47.8% O B) 58.4% C) 32.4% OD) The identity of the compound must be known. E) none of the above QUESTION 9 1 points What is the molarity of a solution prepared by dissolving 54.3 g of Ca(NO3)2 into 355 ml of water? A) 0.331 M B) 0.932 M C) 0.117 M D) 1.99 M E) none...
what is the mass percent of a solution made by dissolving 22.4 g of sodium chloride in 56.6 g of water? round your answer to correct number of sig figs
6) What is the mass percent of an ammonium carbonate solution prepared by dissolving 33.2 grams of solid into 39.5 grams of water? A) 84.1% B) 72.7% C) 45.7% D) 54.3% E) none of the above
What is the molality of a solution prepared by dissolving 300 g KCl in 225 g H2O? Show all calculations and report your answer to the correct number of sig figs.
Question 10 The % concentration by mass of a solution prepared by dissolving 9.44 g of KF in 85.3 g of solution is: Selected Answer: 11.1% Correct Answer: 11.1% Response Feedback: Correct! Question 11 Select the amount of NaBr, in grams, needed to prepare 325. grams of a 3.62% by mass NaBr solution: Selected Answer: 3.25 grams Correct Answer: 11.8 grams Response Feedback: Incorrect! Percent by mass is the grams of solute dissolved per 100 g of solution: [C# grams...
what is the mass percent NaCI of a solution prepared by dissolving 25.80g of NaCI in 125.00g of water
7. What is the mass percent of sodium acetate in a solution prepared by dissolving 25.0 g of sodium acetate in 150.0 g of water? A. 0.167 % B. 83.3% C. 16.7 % D. 0.143 % E. 14.3 %
A solution prepared with 0.481 g of solid in 50.00 mL of deionized water was found to have a concentration of 0.0908 mol solid/L Use dimensional analysis (unit analysis) to determine the molecular mass of the solid. a. Use correct Sig Figs and Units. Look at Part C #3 on page 12.8 to determine which solid this is. b.
a.)Calculate the mass percent (m/m) of a solution prepared by dissolving 47.97 g of NaCl in 170.1 g of H2O. Express your answer to four significant figures. b). Vinegar is a solution of acetic acid in water. If a 285 mL bottle of distilled vinegar contains 17.8 mL of acetic acid, what is the volume percent (v/v) of the solution? Express your answer to three significant figures. c.)Calculate the mass/volume percent (m/v) of 19.0 g NaCl in 48.0 mL of...
What is the pH of this solution prepared by dissolving 0.28 grams of KOH in 250 mL of solution? (molar mass KOH = 56.11 g/mol)