Solution 13.
13. Hydrogen Fluoride (HF) is a covalentens It is: ANonpolar B. Polar 14. Would you expect...
Calculate the following: a.) The molar concentration of calcium ions and carbonate ions in pure water. b.) The molar solubility of calcium carbonate in pure water. c.) The mass, in mg, of calcium carbonate (MM = 100 g/mol) you would need to dissolve in 1 L of pure water to make a saturated solution.
I’m confused about part b. Am I supposed to do a mole to mole conversion? 1. Describe how you would make 500.0mL of 0.00400 M HCl from 0.0100M HC1? 2. Assume that you did an experiment and determine that a solution had a chloride ion concentration of 0.20 M. a. How many grams of chloride would be present in 50.0 mL of that solution? b. If the chloride in Part a. was the result of dissolving calcium chloride in the...
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...
3. How many moles of HCl are there in 0.1 L of 0.1 M HCI? 4. In Lab 5, you will be using a compound ONPG which has a molecular mass of 300 grams/mol. If you dissolve 30 grams of ONPG in 1 liter of water, what is your final (ONPG] in molar (M)? What is the final concentration in mM? 5. How many grams of ONPG must you dissolve in 1 liter of water to get a solution that...
If you dissolve 412 mg sucrose (formula weight: 342.29 g/mol) in 60 mL of water: a. What is the concentration of sucrose in mM in µM? b. If you take 5 mL of this solution and dilute it to 250 mL, what is the concentration of the glucose in the resulting solution in µM? c. How many nano moles of sucrose are present in 10 mL of the diluted solution?
10.0 mL of the aqeuous ammonium chloride solution from question 1 above is diluted by adding 15.0 mL of distilled water. What is the new Molarity of this diluted solution? Give your answer to the correct number of significant figures. Type in only the numbers. Do not include the molarity unit (M or moles/L). Note: the answer will be a molarity less than 1. Make sure to type in the leading zero. For example, if your answer is 0.111, type...
1. A l64-g sample of HF is dissolved in water to give 2.0 x 10' ml of solution. The concentration of solution is: A) 0.82 M B) 0.16 M C) 0.08 M D) 4.1 M E) 8.2 M 2. You have 75.0 mL of a 2.50 M solution of Na,CrO(ag). You also have 125 mL of a 2.01 M solution of AgNOs(ag), Calculate the concentration of Cro. after the two solutions are mixed together. A) 0.00 M B) 0.309 M...
I need help on solving these equations I keep getting stuck 13, How would you make 1 L of a 2% NaCl solution? 14, How would you make 100 ml of a 5% NaCl solution? 15, How would you make 2L of a 10% glucose solution? 16, How would you make 400 ml of a 3% glucose solution? 17. What is the percent solution if you put 3000 mg of CaClh in 100 ml of H20? 18. If you put...
a) What is the diffusion coefficient (DHCi) at 99 °C for a very dilute solution of hydrogen chloride, HC, in water? The ionic diffusion coefficients in water at 25°C are 9.31 X 105 cm2/s for H and 2.03 X 105 cm2/s for Cl. Start this problem by calculating the ionic |diffusion coefficients at 99 °C from those given at 25 °C assuming the viscosity of water at 25 °C and 99 °C is the same. Assume there is no current...
If you dissolve 412 mg sucrose (formula weight: 342.29 g/mol) in 60 mL of water: a. What is the concentration of sucrose in mM in µM? b. If you take 5 mL of this solution and dilute it to 250 mL, what is the concentration of the glucose in the resulting solution in µM? c. How many nano moles of sucrose are present in 10 mL of the diluted solution?