Homework Answers
According to HOMEWORKLIB RULES we are to solve to only the first four questions..for further solution of the questions please upload them separately.
The solution of the first four questions are given.
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1) When CuSO SHO is heated, it decomposes to anhydrous CuSO4 and water. Complete and balance...
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...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What is the color for anhydrous salt of copper (ID) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4 5H20)? 2) How would you test a colorless rystalline compound to determine if it was a hydrate? 3 1.2008 g of a hydrate of CuSO4" XH O after heated has a mass of 0.7676 g. Calculate the mass percent...
CHM 010 On-Line Lab, Formula of a Hydrate PURPOSE: To determine the formula of Cuso..x H20....
CHM 010 On-Line Lab, Formula of a Hydrate PURPOSE: To determine the formula of Cuso..x H20. In other words, to determine the value of "X". PROCEDURE: When copper(II) sulfate x hydrate, a blue crystalline solid containing embedded water molecules (called a hydrate), is heated in air, it loses the water molecules and the blue solid is transformed to a white anhydrous (no water) crystal known as anhydrous copper(II) sulfate. The "x" represents a whole number of water molecules attached to...
5) Suppose you used the Procedure in this experiment to decompose 1.047 g of an ionic...
5) Suppose you used the Procedure in this experiment to decompose 1.047 g of an ionic hydrate. You recovered 0.950 g of strontium oxalate (SrC204) after heating the sample to constant mass. (Molar mass of SrC_04-175.6 g/mol; Molar mass of H20 - 18.02 g/mol)
Data Table 1. CuSO4 Data Mass of empty cup (grams) Mass of CuSO, hydrate (erams)S Cuso,...
Data Table 1. CuSO4 Data Mass of empty cup (grams) Mass of CuSO, hydrate (erams)S Cuso, hydrate after 1st heating (grams) CuSO, hydrate after 2nd heating (grams) Mass of released H20 (grams) Number of moles of released H201 Mass of anhydrous Cuso (grams) Number of moles of anhydrous CuSO 02a mo Questions: A) Calculate the ratio of moles of H2O to moles of anhydrous Cuso4. Note: Report the ratio to the closest whole number. B) Write the empirical formula for...
When copper(II) sulfate pentahydrate is heated in air above 100C, it loses the water molecules and...
When copper(II) sulfate pentahydrate is heated in air above 100C, it loses the water molecules and also its blue color. CuSO4•5H2O—>CuSO4 + 5H2O If 9.75 g of CuSO4 are left after heating 15.25 g of the blue hydrate, calculate the number of moles of water originally present in 15.25 g of the hydrate.
please help me solve all 3! Thank you in advance A 15.67 g of a hydrate...
please help me solve all 3! Thank you in advance
A 15.67 g of a hydrate of magnesium carbonate was carefully heated to drive off the waters of hydration. The mass was reduced to 7.58 g after the water was driven off. What is the molecular formula of this hydrate? Complete the molecular formula by choosing the appropriate coefficient below: MgCoz v H20 Checl OVO AWN Next page Silver nitrate has the molecular formula AgNO3. In a 216.8 g sample...
Experiment 6 PRE-LABORATORY PROBLEMS NAME 1. Write a purpose statement and a summary of the procedure...
Experiment 6 PRE-LABORATORY PROBLEMS NAME 1. Write a purpose statement and a summary of the procedure to include special technique equipment, chemicals, and chemical reactions to be performed, an understanding of any calculations that are important to understanding the procedure. 2. Calculate the molar mass of copper (II) Sulfate pentahydrate, Cuso,5H.O. 3. Calculate the mass percent of water present in Copper(II) sulfate pentahydrate. 4. Define the term hydrate and anhydrous. S. A 2.000 gram sample of hydrated barium carbonate was...
1. How much anhydrous CuSO4 in grams are required to prepare 700.0 mL of 0.30 M...
1. How much anhydrous CuSO4 in grams are required to prepare 700.0 mL of 0.30 M CuSO4 solution? Molar mass of CuSO4 = 159.62 g 2. A student determined the molar absorptivity of a copper (II) sulfate solution to be 2.81 M-1 cm-1 . If the absorbance of the given solution was 0.703, what was the concentration of the given solution? Assume the path length of solution 1.0 cm. 3. Why should you rinse the cuvette before you fill it...
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...
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What is the color for anhydrous salt of copper (ID) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4 5H20)? 2) How would you test a colorless rystalline compound to determine if it was a hydrate? 3 1.2008 g of a hydrate of CuSO4" XH O after heated has a mass of 0.7676 g. Calculate the mass percent...
CHM 010 On-Line Lab, Formula of a Hydrate PURPOSE: To determine the formula of Cuso..x H20. In other words, to determine the value of "X". PROCEDURE: When copper(II) sulfate x hydrate, a blue crystalline solid containing embedded water molecules (called a hydrate), is heated in air, it loses the water molecules and the blue solid is transformed to a white anhydrous (no water) crystal known as anhydrous copper(II) sulfate. The "x" represents a whole number of water molecules attached to...
5) Suppose you used the Procedure in this experiment to decompose 1.047 g of an ionic hydrate. You recovered 0.950 g of strontium oxalate (SrC204) after heating the sample to constant mass. (Molar mass of SrC_04-175.6 g/mol; Molar mass of H20 - 18.02 g/mol)
Data Table 1. CuSO4 Data Mass of empty cup (grams) Mass of CuSO, hydrate (erams)S Cuso, hydrate after 1st heating (grams) CuSO, hydrate after 2nd heating (grams) Mass of released H20 (grams) Number of moles of released H201 Mass of anhydrous Cuso (grams) Number of moles of anhydrous CuSO 02a mo Questions: A) Calculate the ratio of moles of H2O to moles of anhydrous Cuso4. Note: Report the ratio to the closest whole number. B) Write the empirical formula for...
please help me solve all 3! Thank you in advance
A 15.67 g of a hydrate of magnesium carbonate was carefully heated to drive off the waters of hydration. The mass was reduced to 7.58 g after the water was driven off. What is the molecular formula of this hydrate? Complete the molecular formula by choosing the appropriate coefficient below: MgCoz v H20 Checl OVO AWN Next page Silver nitrate has the molecular formula AgNO3. In a 216.8 g sample...
Experiment 6 PRE-LABORATORY PROBLEMS NAME 1. Write a purpose statement and a summary of the procedure to include special technique equipment, chemicals, and chemical reactions to be performed, an understanding of any calculations that are important to understanding the procedure. 2. Calculate the molar mass of copper (II) Sulfate pentahydrate, Cuso,5H.O. 3. Calculate the mass percent of water present in Copper(II) sulfate pentahydrate. 4. Define the term hydrate and anhydrous. S. A 2.000 gram sample of hydrated barium carbonate was...
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