How many moles. of Mg(OH)_2 can be precipitated when 15 mL of 0.20 M MgCl_2 solution...
How many moles of A2B can be made if 20.0 mL 0.20 M A are combined with 30.0 mL 0.10 MB in the following reaction: 2A(aq) +B(aq) + A2B(s) 0.0010 mol 0.0020 mol 0.0030 mol 0.0040 mol None of these
1- How many milliliters of an aqueous solution of 0.122 M aluminum chloride is needed to obtain 13.9 grams of the salt? 2- In the laboratory you dissolve 15.7 g of barium sulfide in a volumetric flask and add water to a total volume of 250 . mL. What is the molarity of the solution? 3- In the laboratory you dilute 4.43 mL of a concentrated 6.00 M hydroiodic acid solution to a total volume of 50.0 mL. What is...
How many milliliters of a 0 250 M solution can be prepared by dissolving 4.00 g of NaCl in water? How many grams of lithium bromide, LiBr, could be recovered by evaporating 550. mL of 20.0 percent LiBr solution to dryness (d = 1.34 g/mL)? How many milliliters of 6.0 M HCl is needed to prepare 500. mL of a 0.150 M HCl solution? A sample of potassium hydrogen phthalate, HKC_4H_4O_4, weighing 0.512 g was dissolved in water and titrated...
10. How many grams of NHs will dissolve in 0.10 L of solution when its partial pressure is 7.6 torr? (h-58 m Calculate the mole fraction of NaCI in a solution that is prepared by dissolving 20.0 g NaCI in atm 11. 90.0 g of H20. 12. Calculate the parts per million of a solution made by dissolving 0.340 g of NH, in 2.00 x 10 mL of water (MMNH3-17.04 mol, di 20 = 1.00 mL).
How many moles of CaCl2 are in 250. mL of a 3.00 M of CaCl2 solution? A) 3.00 mol B) 1.33 mol C) 83.3 mol D) 750. mol 250 m2 3.00 moles 1.08206
< 16 of 32 > Part A 250 mL of a 6.0 M HNO3 stock solution is diluted using water to 100 mL. How many moles of HNO3 are present in the dilute solution? View Available Hint(s) 60 moles 0.15 moles 0.6 moles 1.5 moles Submit Part B How many mL of a 14.0M NH3 stock solution are needed to prepare 200 mL of a 4.20 M dilute NH3 solution? ► View Available Hint(s) 600 ml 0.060 mL 840 mL...
How many moles of CH,OH are there in 73.0 mL of 0.400 M CH,OH? Attempts remaining: 7 How many moles of HCl are there in 75.0 mL of 0.280 M HCI? Attempts remaining: 7 What is the concentration of a solution made with 0.425 moles of KOH in 400.0 mL of solution? Attempts remaining: 7 What is the concentration of sodium ions in 0.380 M NO.CO,? Attempts remaining: 7 What is the concentration of sodium ions in 0.300 M Na,SO.?...
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...
How many moles of KMnO4 are present in 125 mL of a 0.0850 M solution? 0.011 10.6 94.0 0.68 9.47 Question 4 2 pts How many milliliters of a 70.0 mL solution of 1.51 M BaCl2 must be used to make 12.0 mL of a solution that has a concentration of 0.300 M CI? DO NOT USE UNITS. DO NOT use scientific notation. Report your answer with 3 significant figures. Question 5 2 pts Mom made the kids 2 L...