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Team Instructor 11 Pre-Lab Study Questions 1. What is meant by the simplest formula of a...
3. What happens when a hydrate is heated? 4. A hydrate of CoCl, with a mass of 6.00 g is heated strongly. After c...
3. What happens when a hydrate is heated? 4. A hydrate of CoCl, with a mass of 6.00 g is heated strongly. After cooling, the mass of the anhydrate is 3.27 g. a. How many grams of H2O were lost from the hydrate? b. What is the % water in the hydrate? c. What is the formula of the CoCl, hydrate? d. Write the equation for the dehydration of the CoCl, hydrate.
4. A hydrate of CoCl2 with a mass of 6.00 g is heated strongly. After cooling,...
4. A hydrate of CoCl2 with a mass of 6.00 g is heated strongly. After cooling, the mass of the anhydrate is 3.27 g. a. How many grams of H2O were lost from the hydrate? b. What is the % water in the hydrate? c. What is the formula of the Cocl, hydrate? d. Write the equation for the dehydration of the CoCl, hydrate. Moles and Chemical Formulas Questions and Problems Q1 Using the rules for writing the formulas of...
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...
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1....
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1. In the formula Mgo, what is the relative mass ratio of magnesium to oxygen? What is the "count ratio of magnesium to oxygen in MgO? Why are the two ratios different? NNNNNNNNNNNNNNNNN11111111111111111 2. Write a balanced equation for the reaction of sodium and sulfur to form sodium sulfide. 3. Using the equation above, how many grams of sulfur are consumed with 0.750 g of...
Name Date Section Team Instructor Pre-Lab Study Questions 1. Why is the freezing of water called...
Name Date Section Team Instructor Pre-Lab Study Questions 1. Why is the freezing of water called a physical change! 2. Why are burning candles and rusting nails examples of chemical change 3. What is included in a chemical equation? 4. How does a combination reaction differ from a decomposition reaction? A. Magnesium and Oxygen A.1 Initial appearance of Mg Observations of the reaction Appearance of the product A.2 Balance: Mg(s) + ___0:) - -MgO(s) A.3 Type of reaction:
Lab #19; Empirical Formula of Magnesium Hydroxide Pre-Lab Questions Name: Heating 1.29 g of gallium gives...
Lab #19; Empirical Formula of Magnesium Hydroxide Pre-Lab Questions Name: Heating 1.29 g of gallium gives a gallium-oxygen compound with a mass of 1.739 Calculate the empirical formula of the compound. Step 1: Figure out how many grams of oxygen are in the 1.73 grams of gallium-oxygen compound. Step 2: Convert the 1.29 g of gallium to moles: Step 3: Convert the grams of oxygen you calculated in step 1 to moles: Step 4: Figure out the formula. Formula Name
Problems 1. What is the simplest formula for a compound which is 25.98 nitrogern and 74.1%...
Problems 1. What is the simplest formula for a compound which is 25.98 nitrogern and 74.1% oxygen? 2. A 5.00 g sample of an oxide of lead contains 4.33 g of lead. Derive the simplest formula. 3. What weight of oxygen is contained in 62.0 g of Mg (C2H3O2)2? 4. If 10.o g of copper is heated with 20.0 g of sulfur, hoiw much copper (I) sulfide will be produced? Which reagent is in excess and how many grams of...
CH 112 Date Section Instructor Name Team Pre-Lab Questions 1. What is the difference between an...
CH 112 Date Section Instructor Name Team Pre-Lab Questions 1. What is the difference between an Arrhenius base and a Brønsted-Lowry base? 2. Why are acid-base reactions called neutralization reactions? 3. What does the pH of a solution tell you? : Properties of Acids and Bases Acid Base Neutral af with Unknown
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized...
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized in a 255-mL flask in a hot water bath at 100.0 C. The atmospheric pressure is 748 torr and the vapor is found to have a mass of 0.714 grams. What is the molecular mass of the vapor? 2 A gas is found to be 85.7 % carbon and 14.3 % hydrogen by mass. Its molecular mass was found to be 98.1 g/mol using...
please help me answer these questions,the name of the hydrate used is filled in on page...
please help me answer these questions,the name of the
hydrate used is filled in on page 1(CaSO4•H2O)
Lab 09 - Percent of Water in a Hydrate Post-Lab Questions Name Date Instructor Section 1. What is the name of the hydrate that you used in this experiment? Casoy H2O 2. What is the formula of the hydrate that you used in this experiment? 3. From its formula, what is the percentage of water in your hydrate? This is your theorectical value....
3. What happens when a hydrate is heated? 4. A hydrate of CoCl, with a mass of 6.00 g is heated strongly. After cooling, the mass of the anhydrate is 3.27 g. a. How many grams of H2O were lost from the hydrate? b. What is the % water in the hydrate? c. What is the formula of the CoCl, hydrate? d. Write the equation for the dehydration of the CoCl, hydrate.
4. A hydrate of CoCl2 with a mass of 6.00 g is heated strongly. After cooling, the mass of the anhydrate is 3.27 g. a. How many grams of H2O were lost from the hydrate? b. What is the % water in the hydrate? c. What is the formula of the Cocl, hydrate? d. Write the equation for the dehydration of the CoCl, hydrate. Moles and Chemical Formulas Questions and Problems Q1 Using the rules for writing the formulas of...
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...
Pre-Lab Study Questions - Lab 9 (Reaction Stoichiometry and Moles) Date: Name: Section: Team: Instructor: 1. In the formula Mgo, what is the relative mass ratio of magnesium to oxygen? What is the "count ratio of magnesium to oxygen in MgO? Why are the two ratios different? NNNNNNNNNNNNNNNNN11111111111111111 2. Write a balanced equation for the reaction of sodium and sulfur to form sodium sulfide. 3. Using the equation above, how many grams of sulfur are consumed with 0.750 g of...
Name Date Section Team Instructor Pre-Lab Study Questions 1. Why is the freezing of water called a physical change! 2. Why are burning candles and rusting nails examples of chemical change 3. What is included in a chemical equation? 4. How does a combination reaction differ from a decomposition reaction? A. Magnesium and Oxygen A.1 Initial appearance of Mg Observations of the reaction Appearance of the product A.2 Balance: Mg(s) + ___0:) - -MgO(s) A.3 Type of reaction:
Lab #19; Empirical Formula of Magnesium Hydroxide Pre-Lab Questions Name: Heating 1.29 g of gallium gives a gallium-oxygen compound with a mass of 1.739 Calculate the empirical formula of the compound. Step 1: Figure out how many grams of oxygen are in the 1.73 grams of gallium-oxygen compound. Step 2: Convert the 1.29 g of gallium to moles: Step 3: Convert the grams of oxygen you calculated in step 1 to moles: Step 4: Figure out the formula. Formula Name
Problems 1. What is the simplest formula for a compound which is 25.98 nitrogern and 74.1% oxygen? 2. A 5.00 g sample of an oxide of lead contains 4.33 g of lead. Derive the simplest formula. 3. What weight of oxygen is contained in 62.0 g of Mg (C2H3O2)2? 4. If 10.o g of copper is heated with 20.0 g of sulfur, hoiw much copper (I) sulfide will be produced? Which reagent is in excess and how many grams of...
CH 112 Date Section Instructor Name Team Pre-Lab Questions 1. What is the difference between an Arrhenius base and a Brønsted-Lowry base? 2. Why are acid-base reactions called neutralization reactions? 3. What does the pH of a solution tell you? : Properties of Acids and Bases Acid Base Neutral af with Unknown
Student Name Course/Section Date Instructor PRE-LAB ASSIGNMENT 1. A sample of an unknown liquid is vaporized in a 255-mL flask in a hot water bath at 100.0 C. The atmospheric pressure is 748 torr and the vapor is found to have a mass of 0.714 grams. What is the molecular mass of the vapor? 2 A gas is found to be 85.7 % carbon and 14.3 % hydrogen by mass. Its molecular mass was found to be 98.1 g/mol using...
please help me answer these questions,the name of the
hydrate used is filled in on page 1(CaSO4•H2O)
Lab 09 - Percent of Water in a Hydrate Post-Lab Questions Name Date Instructor Section 1. What is the name of the hydrate that you used in this experiment? Casoy H2O 2. What is the formula of the hydrate that you used in this experiment? 3. From its formula, what is the percentage of water in your hydrate? This is your theorectical value....
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