QUESTION 7 What is the molarity of a solution prepared by dissolving 1453 g of lactose...
What is the molarity (moles per Liter) of an aqueous solution that is prepared by dissolving 41.5 g of potassium iodide (KI; Molar Mass = 166.0 g/mole) in enough water to make 2,500.0 mL of solution? (5 points]
Question 13 Select the molarity of the solution prepared by dissolving 1.62 moles of NaBr in 5.88 liters of solution Selected Answer: 2.76M Correct Answer: 0.276 M Response Feedback: Incorrect Molarity - #moles of solute / # liters of solution. Question 14 Select the molarity of the solution prepared by dissolving 12.9 grams KF in 535 mL of solution: Selected Answer: 0.0241 M Correct Answer: 0.415 M Response Feedback: Incorrect! Let the units drive the solution: #grams x (1 mole/...
Question 25 of 35 > What is molarity of A1+ ions in a solution prepared by dissolving 1.06 g of Al2(SO4)3 in 250,0 mL of water. Molar mass of Al2(SO4)3 is 342.15 g/mol. Enter your answer in the provided box. For this question, show your complete work in Part 2 Question 24 of 35 > An aqueous potassium iodate stock solution is made by dissolving 5.86 mol KIO, in sufficient water for the final volume of the solution to be...
What is the molarity of sodium hydroxide (NaOH) in a solution prepared by dissolving 100 g of the solute into 1000 mL of solution?
What is the molarity of the solution that is prepared by dissolving 15 mL bromine in enough acetic acid to make 100.0 mL of solution? (molar mass of Br2 = 159.81 g/mole; density 3.12 g/mL)?
What is the Molarity (M) of a solution prepared by dissolving 27 g of CaCl2 in 2.0 L se (Molar mass of CaCl2 d) 3.3 M a) 0.3 M b) 0.6 M c) 0.15 M What is the concentration of a solution formed by diluting 10 mL of 6.4 M glucose s mL? a) 0.6 M b) 0.16 M c) 16 M d) 1.6 M The conjugate base of HSO4? a) SO2 b) HSO3 c) H2SO4 d) H.С Calculate the...
Determine the molarity of a solution of potassium chloride that is prepared by dissolving 1.4753 g of KCl in a 100-mL volumetric flask and filling it to the calibration mark with deionized water. Use a molar mass with at least 4 significant figures so that the number of SF in the calculated molarity is not limited. Show all calculations (including labeled conversion factors) and express the answer with the appropriate number of significant figures. According to the manufacturer, the volume...
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 molarity of a solution prepared by dissolving 5.90 grams of calcium nitrite [Ca(NO2)2, molar mass=132.10 g/mol] in enough water to make a 106.0 mL soln?
What is the molarity of FeCl3 in a solution prepared by dissolving 10.0 g of FeCl3 in enough water to make 275 mL of solution?