Home Work Help
We dissolve 2.45 g of sugar in 200.0 g water. what is the mass percent of sugar in the solution?
1.23% C. 2.42% D. 123% E. none of the above Question 2 The molarity of a solution prepared by dissolving 15.0 g of NaCl in 1000 mL water is? A. 0.150 M B. 0.0150 M C. 15.0 M D. 1.50 x 102 M E. none of the above 10 points Question 3 Given that you wish to use exactly 0.325 mole of NaCl to give a 2.50 M NaCl solution, how many milliliters of solution must you prepare? A. 130. mL B. 0.130 mL C. 7.69 mL D. 0.813 mL E. none of the above Question 4 How many grams of LiF would be present in 575 mL of 0.750 M LiF solution? A. 11.2 g B. 0.0338 g 1.12 × 104 g C. 1.12 × 104 g D. 19.9 g E. 33.8 g Question 5 What volume (in mL) of a 0.500 M fructose (C6H12O6) solution can be made from 11.3 g of fructose? A. 11.3 mL B. 0.125 mL C. 31.4 mL D. 5.65 mL E. 125 mL Question 6 What volume of 12.0 M HCl is required to make 75.0 mL of 3.50 M HCl? A. 21.9 mL B. 0.560 mL C. 257 mL D. 560. mL E. none of the above Question 7 If you add 4.00 mL of pure water to 6.00 mL of 0.750 M NaCl solution, what is the concentration of sodium chloride in the diluted solution? A. 0.250 M B. 0.450 M C. 0.500 M D. 1.13 M E. none of the above Question 8 Which of the following substances is NOT a solution? A. humid air B. beer C. oxygen D. steel E. All of the above are solutions.
In order to continue enjoying our site, we ask that you confirm your identity as a human. Thank you very much for your cooperation. |