What mass of lithium phosphate is needed to prepare 287 mL of a solution having a...
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 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 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 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)
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
What mass of lithium phosphate must be added to 25.0 L of water (Kf = 1.86 °C/m) to produce a solution that freezes at -5.2 °C and what is the molarity of the lithium ions in this solution when the density=2.34g/mL
7. How many grams of lithium phosphate are needed to prepare 4.0 liters of a 0.2 M solution of lithium phosphate ? 13. Which of the following is a chemical change? Melting naphthalene a covalent compound, cooking an egg, slicing a tomato, heating baking soda, sodium bicarbonate, heating fat with a strong base, pumping gasoline, mixing and acid with a base ?
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:...
Solid silver acetate is slowly added to 125 mL of a potassium phosphate solution until the concentration of silver ion is 0.0287 M. The maximum amount of phosphate remaining in solution is ___ Solid sodium hydroxide is slowly added to 150 mL of a chromium(III) nitrate solution until the concentration of hydroxide ion is 0.0629 M. The maximum amount of chromium(III) ion remaining in solution is _____ Solid ammonium fluoride is slowly added to 150 mL of a 0.366 M...