QUESTION 8 What is the mass percent of a solution prepared by dissolving 18.9 grams of...
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
A solution is prepared by dissolving 47.8 grams of glucose (180.16 g/mol) in 0.159 kilograms of water. The final volume of the solution is 441 mL . Calculate the molarity of the solution.
Question 8 How many grams of NaF are in 24.5 mL of a 52.5% by volume (m/v) Naf solution? 0.4678 0.129 g 12.98 46.78 Question 9 What is the molarity of a solution prepared by dissolving 27.2 g of Ca(NO3)2 Into 289 ml. of water? (MM of Ca(NO3)2 = 164.09 g/mol) 0.000574 M 94.1 M 0.574 M 0.0479 M
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?
Question 17 A solution is prepared by dissolving 45 g sodium carbonate, Na2CO3, in enough water to make 200 mL of solution. If the density of the solution is 1.1094 g/mL, what is the % mass of the solution? Question 18 Calculate the molarity of a 4.628 m solution of Sr(NO3)2 in H2O. The density of this solution is 1 g/mL Include units. Question 19 What is the molarity of a sodium chloride solution prepared by diluting 2.1 mL of...
Question 9 (1 point) A solution is prepared by dissolving 50.0000 grams of sodium sulphate in 700.0 mL of distilled water. Calculate the concentration in Molarity. Give your answers to four places after the decimal place. Your Answer: Answer units
8. A solution is made by dissolving 12.3 grams of calcium nitrate in enough water to form 500.0 mL of solution. sve (a) Calculate the molarity (M) of the resulting solution. (4) (b) What is the molarity of the nitrate ion, [NO3-), for the solution? (1) 9. What volume of 6.0 M HCl would need to be diluted with water to form 125 mL of 0.50 M HCI? (2) mivi
What is the concentration of NO3-ions in a solution prepared by dissolving 20.0 g of Ca(NO3)2 in enough water to produce 300 mL of solution? 0.406 M 0.537 M 0.813 M. O 0.203 M
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 31 A solution was made by dissolving 26.5g of Na2CO3 in 500.0 mL of water. What is the molality of this solution? (1.0g of water -1.0 ml of water) 11 Na23.6C128016 OA 0.25 m OB. 0.25 M OC 0.5M OD 0.5 m E. None of above QUESTION 32 Molarity (M) of a solution varies with O A Pressure O Temperature OC Partial pressure D. Both A and B OE. Both A and C QUESTION 33 Which of the following...