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answer both parts please
SHOW ALL WORK!!!! 16. If a chemist dissolves 48.2 grams of calcium...
A) A chemist prepares a solution by adding 304 mg of Co(NO3)2 (MW = 182.94 g/mol)...
A) A chemist prepares a solution by adding 304 mg of Co(NO3)2 (MW = 182.94 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 100 mL. Determine the molarity of the prepared solution. B) Determine the mass of chloride (MW = 35.45 g/mol) in grams present in 100mL of a 0.289 M solution of aqueous FeCl3 (iron(III) chloride). C) A beaker contains 250 mL...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 750 mL . Determine the molarity of the prepared solution. Express the concentration in moles per liter to three significant figures. ► View Available Hint(s) Templates Symbols undo redo 'reset keyboard shortcuts help concentration = mol/L Submit Previous Answers Determine the...
Part B: A chemist prepares a solution by adding 415 mg of CoCl2 (MW = 129.84...
Part B: A chemist prepares a solution by adding 415 mg of CoCl2 (MW = 129.84 g/mol ) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 100 mL. Determine the molarity of the prepared solution. (moles per litre, 3 sig figs) Part C: Determine the mass of chloride (MW = 35.45 g/mol ) in grams present in 100 mL of a 0.166 M solution...
Please show all work on a separate sheet and staple to this page. Clearly show "road...
Please show all work on a separate sheet and staple to this page. Clearly show "road maps" and units. I. Calculate molarity of 12.443 g of aluminum sulfate in 250.0 mL solution. II. How many grams of copper(II) sulfate pentahydrate is needed to make 125.0 mL of a 0.550 M solution? III. Determine the amount of potassium chloride in 19.7 g of a solution containing 1.08% potassium chloride by mass. IV. A hard water sample contains 0.0085% calcium ion by...
3 attempts left Check my work Be sure to answer all parts. Calculate the molarity of...
3 attempts left Check my work Be sure to answer all parts. Calculate the molarity of each of the following solutions. (a) 6.03 g of methanol (CH3OH) in 1.50 x 102 mL of solution: 1.37 mol/L (b) 9.60 g of calcium chloride (CaCl,) in 2.20 x 102 mL of solution: mol/L (c) 7.37 g of naphthalene (C10H8) in 85.2 mL of benzene solution: mol/L
Please answer 11-16 10. How many sugar molecules are present in 300 mL of a 2.0...
Please answer 11-16
10. How many sugar molecules are present in 300 mL of a 2.0 M solution? (The formula for sugar is C12H220)Sugar conce mbakxvolme 2.0 x .300 6.6 mol 11. Your teacher asks you to prepare 500 mL of a 2.75 molar solution of Nacioran upcoming laboratory experiment. Write a step-by-step procedure describing how you would carry out this task. 12. When water is added to a solution, the solution will be more diluted. What is the equation...
This question has multiple parts. Work all the parts to get the most points. a What...
This question has multiple parts. Work all the parts to get the most points. a What mass of silver chloride can be prepared by the reaction of 240.0 mL of 0.18 M silver nitrate with 240.0 mL of 0.15 M calcium chloride? Mass = 6.2 g Correct b Calculate the concentrations of each ion remaining in solution after precipitation is complete. (If no ions remain, leave the box blank and click on Submit.) Concentration of Agt = Concentration of Cl...
Calculating molarity using solute moles (please show work) A chemist prepares a solution of barium chlorate...
Calculating molarity using solute moles (please show
work)
A chemist prepares a solution of barium chlorate (Ba(CIOby measuring out 12.1 umol of barium chlorate into a 350. ml. volumetric flask and filling the flask to the mark with water Calculate the concentration in mmol/L of the chemist's barium chlorate solution. Round your answer to 3 significant digits. mmol
A chemist dissolved 65.353 grams of CuSO4 * 5H2O into enough water to make 150.0 mL...
A chemist dissolved 65.353 grams of CuSO4 * 5H2O into enough water to make 150.0 mL of aqueous CuSO4 solution. (a) Calculate the concentration of this solution, in molarity. (b) What is the normality of the Cu2+ ions in the above solution? (c) He then reacted the above CuSO4 solution with some 0.225 M KI solution. The reaction occurs as follows: 2 CuSO4 (aq) + 4 KI (aq) à 2 CuI (s) + I2 (aq) + 2 K2SO4 (aq)...
explain in detail, please. A23. What is the expression you would develop to calculate the molar...
explain in detail, please.
A23. What is the expression you would develop to calculate the molar solubility, s, of Ca(OH)2 in a 0.2 M CaCl2 solution? (A) 0.45 + 282 (B) 483 (C) 0.452 + 253 (D) 0.852 + 453 (E) 0.252 + s3 A24. A chemist separately measures out 3 x 10-4 mol calcium chloride, 3 x 10-4 mol magnesium chloride and 1.8 x 10-3 mol sodium hydroxide and dissolves each one of these in a volume of 100...
A chemist prepares a solution by adding 348 mg of K2Cr2O7 (MW = 294.19 g/mol) to a volumetric flask, and then adding water until the total volume of the contents of the flask reaches the calibration line that indicates 750 mL . Determine the molarity of the prepared solution. Express the concentration in moles per liter to three significant figures. ► View Available Hint(s) Templates Symbols undo redo 'reset keyboard shortcuts help concentration = mol/L Submit Previous Answers Determine the...
Please show all work on a separate sheet and staple to this page. Clearly show "road maps" and units. I. Calculate molarity of 12.443 g of aluminum sulfate in 250.0 mL solution. II. How many grams of copper(II) sulfate pentahydrate is needed to make 125.0 mL of a 0.550 M solution? III. Determine the amount of potassium chloride in 19.7 g of a solution containing 1.08% potassium chloride by mass. IV. A hard water sample contains 0.0085% calcium ion by...
3 attempts left Check my work Be sure to answer all parts. Calculate the molarity of each of the following solutions. (a) 6.03 g of methanol (CH3OH) in 1.50 x 102 mL of solution: 1.37 mol/L (b) 9.60 g of calcium chloride (CaCl,) in 2.20 x 102 mL of solution: mol/L (c) 7.37 g of naphthalene (C10H8) in 85.2 mL of benzene solution: mol/L
Please answer 11-16
10. How many sugar molecules are present in 300 mL of a 2.0 M solution? (The formula for sugar is C12H220)Sugar conce mbakxvolme 2.0 x .300 6.6 mol 11. Your teacher asks you to prepare 500 mL of a 2.75 molar solution of Nacioran upcoming laboratory experiment. Write a step-by-step procedure describing how you would carry out this task. 12. When water is added to a solution, the solution will be more diluted. What is the equation...
This question has multiple parts. Work all the parts to get the most points. a What mass of silver chloride can be prepared by the reaction of 240.0 mL of 0.18 M silver nitrate with 240.0 mL of 0.15 M calcium chloride? Mass = 6.2 g Correct b Calculate the concentrations of each ion remaining in solution after precipitation is complete. (If no ions remain, leave the box blank and click on Submit.) Concentration of Agt = Concentration of Cl...
Calculating molarity using solute moles (please show
work)
A chemist prepares a solution of barium chlorate (Ba(CIOby measuring out 12.1 umol of barium chlorate into a 350. ml. volumetric flask and filling the flask to the mark with water Calculate the concentration in mmol/L of the chemist's barium chlorate solution. Round your answer to 3 significant digits. mmol
explain in detail, please.
A23. What is the expression you would develop to calculate the molar solubility, s, of Ca(OH)2 in a 0.2 M CaCl2 solution? (A) 0.45 + 282 (B) 483 (C) 0.452 + 253 (D) 0.852 + 453 (E) 0.252 + s3 A24. A chemist separately measures out 3 x 10-4 mol calcium chloride, 3 x 10-4 mol magnesium chloride and 1.8 x 10-3 mol sodium hydroxide and dissolves each one of these in a volume of 100...
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