A student obtains an unknown mixture of copper sulfate and sand from the Stockroom Window, and...
A student obtains an unknown mixture of copper sulfate and sand from the Stockroom Window, and carries out the procedure for Experiment 2 carefully as written. The student obtains the following data:
Part A
Mass of unknown sample and test tube: 9.1589 g
Mass of test tube: 7.8965 g
Part B
Mass of Filter Paper: 0.6127 g
Mass of Watch Glass: 6.9548 g
Combined Mass of Watch Glass, Filter Paper, and Sand: 7.879 g
Calculate the Mass % of Sand in the Unknown Mixture. Report your answer to the correct number of significant figures, and do not include units in your answer.
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A student obtains an unknown mixture of copper sulfate and sand
from the Stockroom Window, and...
THE COPPER CYCLE: A Series of Reactions Experimental Data From Experimental Procedure - Part A 1....
THE COPPER CYCLE: A Series of Reactions Experimental Data From Experimental Procedure - Part A 1. A student weighed a 25-ml Erlenmeyer flask and found it to be 22.683 g. 2. She added a piece of copper metal to the flask, and found the new mass to be 22.802 g, From Experimental Procedure - Part E 32. The student weighed a watch glass and a clean piece of filter paper, and found the mass to be 55.542 g. 37. After...
need help 2 During the separation of a mixture of benzoic acid, salt, and sand, a student records the following res...
need help
2 During the separation of a mixture of benzoic acid, salt, and sand, a student records the following results. (6 pts) A. Complete the following table: Trial Unknown mixture (a) 4.9648 g Filter paper for sand 0.8120 g 2.4115 g Filter paper dried sand Empty beaker for salt 126.5215 g Beaker +evaporated salt 129.0819 g Filter paper for benzoic acid 0.2755 g Filter paper+ dried benzoic acid 1.3780 g Mass Sand (b) Mass Salt (e) Mass Benzoic acid...
lected. (Assume 1 Cu atom per formula unit.) mass of the test tube and unknown sample...
lected. (Assume 1 Cu atom per formula unit.) mass of the test tube and unknown sample mass of test tube without the unknown sample mass of filter paper mass of filter paper and copper (Assume 1 Cu atohfaunknown copper compound from this data that a student col 14.603 g 13.437 g 0.633 g 1.096 g
Metal Sulfate Hydrate lab (12 points) 4) An unknown metal sulfate hydrate (MSO XHO) sample with...
Metal Sulfate Hydrate lab (12 points) 4) An unknown metal sulfate hydrate (MSO XHO) sample with the recorded mass below is dissolved in water, and the sulfate ions from the sample precipitated with Ba2+ ions as BaSO4. A pre-massed filter paper is then used to collect the solid BaSO4. Experimental data was recorded below following same procedure in MSH lab. 0.6939 96.06 g/mol Molar mass of SO42- PARTA Mass of unknown metal sulfate hydrate (MSH) Mass of unknown sample sulfate...
1. A student performed a freezing point determination and calculated the molar mass of an unknown...
1. A student performed a freezing point determination and calculated the molar mass of an unknown like you did in this experiment. The only difference in procedure was that when determining the freezing point of the unknown-naphthalene mixture, they started with a clean empty test tube. If the following errors occurred, how would each affect the calculated molar mass of the solute (too high, too low, or no change)? Explain your answers. a. The thermometer used actually read 2.0 celcius...
** sigfig rules are applied so answer should have two decimal places A student enters the...
** sigfig rules are applied so answer should have two decimal places A student enters the lab, obtains an unknown solid object from the Stockroom window, and conducts Part A and B1 of the Experimental Procedure. The student performs 3 independent trials. Using their measurements, the following densities are calculated for the unknown solid: Density from Trial 1 = 7.31 g/cm3 Density from Trial 2 = 6.55 g/cm3 Density from Trial 3 = 7.28 g/cm3 Calculate the average deviation for...
Part one's hydrate is Magnesium Sulfate. Part 2's hydrate is Copper (II) Sulfate. ID of Unknown...
Part one's hydrate is Magnesium Sulfate. Part 2's hydrate is
Copper (II) Sulfate.
ID of Unknown Hydrate: Magnesium sulate Collection of Data This data must be collected to 0.0001 g precision on the analytical balances situated in the balance room. Mass of crucible and cover: 12.0385a Mass of crucible: Mass of cover: 5.3550 g 6,6835a 14.0320g Mass of crucible, cover and unknown hydrate: Mass of unknown hydrate: Mass of crucible, cover and residue After 1st heating period: After 2nd heating...
how do you do this ? Some Calculations You started out with a known amount of...
how do you do this ?
Some Calculations You started out with a known amount of harium chloride and sodium sulfate. How much solid product should you collect? Show your calculations. How much did you collect? What is your percent yield? Which reactant should be the limiting reagent? Which reactant should be the excess reagent? Proving the identity of the Limiting and Excess Reagents There are two scenarios for the identity of the contents of the beaker containing the filtrate....
Determine the percent yield of copper. 3. What is the theoretical yield of copper produced by...
Determine the percent yield of copper.
3. What is the theoretical yield of copper produced by this reaction? Materials: Copper (II) chloride • Aluminum foil • Stirring rod • Two 100 ml beakers • Graduated cylinder • Safety glasses • Spatula or scoopula • Balance Filter paper front counter Funnel • Watch glass Ring stand • Iron ring Safety: Safety glasses must be worn at all times! Copper (II) chloride is an irritant and moderately toxic. Avoid inhaling the powder...
using the procedures, we used dichloromethane as the unknown mixture and i was able to extract...
using the procedures, we used dichloromethane as the unknown
mixture and i was able to extract benzoic acid for an acid,
5-chloro-2-methoxyanaline for a base compound and biphenyl for
neutral compound.
i don't know if that answers the missing part but if it didn't
could you be specific please? thank you!
2. Construct a flow chart of the acid-base extraction you carried out. Use the specific structure of the compounds isolated. Don't use the molecular formula. (15 pts) We used...
THE COPPER CYCLE: A Series of Reactions Experimental Data From Experimental Procedure - Part A 1. A student weighed a 25-ml Erlenmeyer flask and found it to be 22.683 g. 2. She added a piece of copper metal to the flask, and found the new mass to be 22.802 g, From Experimental Procedure - Part E 32. The student weighed a watch glass and a clean piece of filter paper, and found the mass to be 55.542 g. 37. After...
need help
2 During the separation of a mixture of benzoic acid, salt, and sand, a student records the following results. (6 pts) A. Complete the following table: Trial Unknown mixture (a) 4.9648 g Filter paper for sand 0.8120 g 2.4115 g Filter paper dried sand Empty beaker for salt 126.5215 g Beaker +evaporated salt 129.0819 g Filter paper for benzoic acid 0.2755 g Filter paper+ dried benzoic acid 1.3780 g Mass Sand (b) Mass Salt (e) Mass Benzoic acid...
lected. (Assume 1 Cu atom per formula unit.) mass of the test tube and unknown sample mass of test tube without the unknown sample mass of filter paper mass of filter paper and copper (Assume 1 Cu atohfaunknown copper compound from this data that a student col 14.603 g 13.437 g 0.633 g 1.096 g
Metal Sulfate Hydrate lab (12 points) 4) An unknown metal sulfate hydrate (MSO XHO) sample with the recorded mass below is dissolved in water, and the sulfate ions from the sample precipitated with Ba2+ ions as BaSO4. A pre-massed filter paper is then used to collect the solid BaSO4. Experimental data was recorded below following same procedure in MSH lab. 0.6939 96.06 g/mol Molar mass of SO42- PARTA Mass of unknown metal sulfate hydrate (MSH) Mass of unknown sample sulfate...
Part one's hydrate is Magnesium Sulfate. Part 2's hydrate is
Copper (II) Sulfate.
ID of Unknown Hydrate: Magnesium sulate Collection of Data This data must be collected to 0.0001 g precision on the analytical balances situated in the balance room. Mass of crucible and cover: 12.0385a Mass of crucible: Mass of cover: 5.3550 g 6,6835a 14.0320g Mass of crucible, cover and unknown hydrate: Mass of unknown hydrate: Mass of crucible, cover and residue After 1st heating period: After 2nd heating...
how do you do this ?
Some Calculations You started out with a known amount of harium chloride and sodium sulfate. How much solid product should you collect? Show your calculations. How much did you collect? What is your percent yield? Which reactant should be the limiting reagent? Which reactant should be the excess reagent? Proving the identity of the Limiting and Excess Reagents There are two scenarios for the identity of the contents of the beaker containing the filtrate....
Determine the percent yield of copper.
3. What is the theoretical yield of copper produced by this reaction? Materials: Copper (II) chloride • Aluminum foil • Stirring rod • Two 100 ml beakers • Graduated cylinder • Safety glasses • Spatula or scoopula • Balance Filter paper front counter Funnel • Watch glass Ring stand • Iron ring Safety: Safety glasses must be worn at all times! Copper (II) chloride is an irritant and moderately toxic. Avoid inhaling the powder...
using the procedures, we used dichloromethane as the unknown
mixture and i was able to extract benzoic acid for an acid,
5-chloro-2-methoxyanaline for a base compound and biphenyl for
neutral compound.
i don't know if that answers the missing part but if it didn't
could you be specific please? thank you!
2. Construct a flow chart of the acid-base extraction you carried out. Use the specific structure of the compounds isolated. Don't use the molecular formula. (15 pts) We used...
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