What mass of K2CO3 is needed to prepare 200. mL of a solution having a concentration of 0.075 M?
A) 4.15 g B) 10.4 g C) 13.8 g D) 2.07 g E) 1.49 g
What mass of K2CO3 is needed to prepare 200. mL of a solution having a concentration...
What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 1.150 M? What is the formula for the mass? Please, write down the formula for me
What mass of K2CO3 is needed to prepare 200. mL of a solution having a potassium ion concentration of 1.150 M? after when you find the moles, please, write down what formula you use to find the mass. thanks
Question 2 What mass of K,CO3 is needed to prepare 200 mL of a solution having a potassium ion concentration of 0.150 M? 13.8 4.155 2.078 10.45 Previous Question 3 Which of the following is/are insoluble in water? (i) NH Br (ii) LiBr (iii) RbBr (iv) AgBr ivonly ili and iv Ill, and iv i.ii, and ili • Previous
What mass of lithium phosphate is needed to prepare 287 mL of a solution having a lithium ion concentration of 0.337 M? Select one: a. 4.158 b. 11.2 8 C.3.248 d. 13.48 e. 3.738
What mass of SnCl4 is required to prepare 125.0 mL of solution having a chloride ion concentration of 1.50 M? (molar mass of SnCl4 = 260.50 g/mol)
19. a. What mass of potassium bromide is needed to prepare a 250. mL of a 2.00 M KBr aqueous solution? Molar mass of KBr = 119.00 g/mol. Use dimensional analysis to calculate the mass. b. Describe the full process of how you would prepare this solution in a 250. mL volumetric flask. c. Calculate the concentration of the solution in question a. if more water was added to bring the solution to a final volume of 1000. mL. (Hint:...
Please help explain ! 1. What mass of sodium sulfate is needed to prepare 150 mL of aqueous solution in which [Nal+] = 0.35 M? 0533 A 3.73 g B) 49.7g C) 6.259 D) 556 g 7. What is the total ion concentration when 7.508 grams of calcium nitrate are added to 500.0 mL of water? Ca CN8₂) 1649 A) 0.1471 M B ) 0.09151 M ) 0.2745 M D) 0.01502 M
How many grams of CrCl3.6H2O are needed to prepare 50 mL of a 200 g/L solution? Select one: a. 5.0 g b. 10.0 g c. 15.0 g d. 2.5 g e. 0.5 g f. 1.0 g
22) How many moles of CH3CH2Cl are contained in 548 mL of 0.0788 M CH3CH2Cl solution? A) 4.32 x 10-2 mol B) 2.32 x 10-2 mol C) 6.95 x 10-2 mol D) 1.44 x 10-2 mol E) 5.26 x 10-2 mol 23) How many milliliters of a 0.266 M CSNO3 solution are required to make 150.0 mL of 0.075 M CSNO3 solution? A) 53.2 ml B) 42.3 mL C) 18.8 ml D) 23.6 mL E) 35.1 ml 24) What is...
22) How many moles of CH3CH2Cl are contained in 548 mL of 0.0788 M CH3CH2Cl solution? A) 4.32 x 10-2 mol B) 2.32 x 10-2 mol C) 6.95 x 10-2 mol D) 1.44 x 10-2 mol E) 5.26 x 10-2 mol 23) How many milliliters of a 0.266 M CSNO3 solution are required to make 150.0 mL of 0.075 M CSNO3 solution? A) 53.2 ml B) 42.3 mL C) 18.8 ml D) 23.6 mL E) 35.1 ml 24) What is...