2. Assume you start with a 2.00 g sample of copper (II) nitrate. a. How many...
2. Assume you start with a 2.00 g sample of copper (II) nitrate.
a. How many moles of copper (II) nitrate do you start with?
b. Your sample will undergo multiple steps, each of which has the potential for loss of product. Assuming a percent yield of only 65.0 %, how many moles of copper (II) sulfate would you expect to produce?
c. If the product is now dissolved in water inside of a 50-mL volumetric flask (as in the procedure), what concentration (in molarity) would you expect? d. Does this value fall within the range of the solutions (Table 1) you will use as in generating a calibration curve? Why do you think this is important?
Homework Answers
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2. Assume you start with a 2.00 g sample of copper (II)
nitrate.
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you need to make 2.00 L of 0.05 M copper (II) nitrate solution. How many grams...
you need to make 2.00 L of 0.05 M copper (II) nitrate solution. How many grams of copper (II) nitrate will you require?
MOLARITY REVIEW 1.) How many nitrate ions are present in a 25.00mL sample of a 2.50M...
MOLARITY REVIEW 1.) How many nitrate ions are present in a 25.00mL sample of a 2.50M calcium nitrate solution? 2.) How many mL of a 0.300M lead(II) nitrate solution are needed to react with 50.00mL of a 0.500M potassium chromate solution? (solution stoichiometry problem) 3.) How many mL of a 0.700M Ca(NO3)2 solution are necessary to react with 25.00mL of a 1.000M H2SO4 solution? 4.) 25.66mL of a solution hydroxide solution reacts with 22.55mL of a 0.888M phosphoric acid solution,...
REPORT SUMMARY (2pts) How many grams of copper (II) nitrate would be produced from 0.80 g...
REPORT SUMMARY (2pts) How many grams of copper (II) nitrate would be produced from 0.80 g of copper metal reacting with excess nitric acid? (5pts) Conversion 2 When copper (II) nitrate reacts with sodium hydroxide, blue-green copper (II) hydroxide and sodium nitrate (in solution) are produced. How many grams of copper (11) hydroxide, Cu(OH)2 can be prepared from 2.4 grams of copper (II) nitrate (Cu(NO3)2) and excess sodium hydroxide? (2pts) Write the balanced chemical equation Normal : BIILU X1 X1...
How many atoms of oxygen would be in a 2.500kg sample of iron(II) nitrate (Fe(NO3)2)
How many atoms of oxygen would be in a 2.500kg sample of iron(II) nitrate (Fe(NO3)2)
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is...
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4.5H2O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4.5H20 are needed to prepare 50.0 mL of a 1.00 M CuSO4 solution? 5) Suppose you used the Procedure in this experiment to...
Copper start to finish lab questions 7a.) and 7b.) hopefully the last 2 images of information...
Copper start to finish lab questions 7a.) and 7b.)
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problem clearer
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Can you pleass show the work and explain? (1) How many grams of potassium chloride must be dissolved in 2.50 x 10^(2) m...
Can you pleass show the work and explain? (1) How many grams of potassium chloride must be dissolved in 2.50 x 10^(2) mL of water to make a 0.400 m solution? (2) How many milliliters of commercial hydrochloric acid, which is 11.6 molar, should you use to prepare 5.50 L of 0.500 molar hydrochloric acid? (3) Calculate the molarity of a NaOH solution prepared by mixing 100. mL of 0.20 M NaOH with 150 mL of H2O. (4) Calculate the...
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I need it right now, please help me?? PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The...
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need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? 62.8 mL 254 mL O 305 ml O 523 mL O 393 mL O Question 2 (1 point) A chemist needs 225 mL of 2.3 M HCl. What volume of 12 M HCl must be dissolved in water...
REPORT SUMMARY (2pts) How many grams of copper (II) nitrate would be produced from 0.80 g of copper metal reacting with excess nitric acid? (5pts) Conversion 2 When copper (II) nitrate reacts with sodium hydroxide, blue-green copper (II) hydroxide and sodium nitrate (in solution) are produced. How many grams of copper (11) hydroxide, Cu(OH)2 can be prepared from 2.4 grams of copper (II) nitrate (Cu(NO3)2) and excess sodium hydroxide? (2pts) Write the balanced chemical equation Normal : BIILU X1 X1...
CuSO4• 5H20 -------> Custy + D u 2) What is the color for anhydrous salt of copper (II) sulfate (CuSO4)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4.5H2O)? 3) How would you test a colorless crystalline compound to determine whether it is a hydrate or not? 4) How many grams of CuSO4.5H20 are needed to prepare 50.0 mL of a 1.00 M CuSO4 solution? 5) Suppose you used the Procedure in this experiment to...
Copper start to finish lab questions 7a.) and 7b.)
hopefully the last 2 images of information help make the
problem clearer
7. a) For each mole of Cu dissolved in the nitric acid solution (HNO3), how many moles of [Cu(H2O)612+ are formed? col were formed in your reaction? b) Given your data above, how many moles of [Cu(H2O)6]2+ Reaction I:Cu (s)+ 4 H3O (aq) +2 NO3 (aq) --> [Cu(H2O)]** (aq) +2 NO2 (g) The first reaction in the series is...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
Question 1 (1 point) A 52.30 g sample of Ba(OH)2 is dissolved in enough water to make 1.20 L of solution. How many milliliters of this solution must be diluted with water in order to make 1.00 L of 0.100 M Ba(OH)2? 62.8 mL 254 mL O 305 ml O 523 mL O 393 mL O Question 2 (1 point) A chemist needs 225 mL of 2.3 M HCl. What volume of 12 M HCl must be dissolved in water...
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