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8. How many milligrams of barium bromide would be expected within a 120.0-gram sample of a...
Solutions and Dilutions 1. What would be the percent (%) concentration of a solution that results from the combination of 115.0 grams of potassium nitrate with 0.320 L of water? Identify the solute and solvent of the solution 2. A solution is prepared by mixing together 76.40 mL of liquid ethanol (C2H4O) and 110.25 mL of water. Identify the solute and solvent of the resulting solution. What would be the percent (%) concentration of the solution? 3. How many grams...
How many milligrams of silver bromide would dissolve in 1.0 liter of water?
In the laboratory you are asked to make a 0.552 m barium bromide solution using 475 grams of water. How many grams of barium bromide should you add? grams.
7. Calculate the molality, m, of a solution prepared from 29.22 grams of potassium sulfate in exactly 2000 mL of water. Consider the density of water to be 1.00 g.mL-' 8 How many milligrams of harium bromide would ha avracted within a 1200 gram camole of a
How many milliliters of 4.57 M potassium bromide solution would be needed to prepare 1.00 L of 2.08 M potassium bromide solution?
How many milligrams of glucose would you use to make 5 ml of a
300 mM glucose solution? Show your calculations...Please work this
out on loose leaf
4. How many milligrams (mg of glucose would you use to make 5 ml of a 300 mM glucose solution? Show your calculations. Answer
8. A 4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. and the fomula of the hydrate Determine the mass percent of water in the hyd rate and the formula of the hydrate.
How many grams of solid ammonium bromide should be added to 1.50 L of a 0.113 M ammonia solution to prepare a buffer with a pH of 10.180 grams ammonium bromide How many grams of solid ammonium bromide should be added to 0.500 L of a 0.262 M ammonia solution to prepare a buffer with a pH of 8.420 ? grams ammonium bromide- 8
Question 7 (1 point) How many moles of H+ are in 120.0 mL of an HCl stock solution if a 30.00 mL aliquot was titrated with 51.46 mL of 0.1100 M NaOH?
•How many N atoms would be present in 0.378 moles of N2O? •2. If you have 4.55 x 1016 NO2 molecules, how many moles would you have? •3. How many grams would you need in order to have 0.885 moles of CuCO3? •4. If you have a 15.0 g sample of PF5, how many PF5 molecules would be in your sample? •5. If you have 3.14 x 1019 FeCl2 molecules, how many milligrams would you have? •6. What is the...