Homework Answers
In each mole of salt MgSO4 . 3 H2O there are 3 molecules of water . This hydrated salt as a whole has one molecule MgSO4 and 3 molecule of H2O in a single entity.
therefor for one mole of the salt there are 3 moles of
H2O.
answer is 3
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Question 4 1 pts How many moles of water are there for each mole of salt...
3. What is the mole ratio of salt to water for the following compounds? Hydrate Salt Water CaCl2 - 2 H20 FeSO4 · 7...
3. What is the mole ratio of salt to water for the following compounds? Hydrate Salt Water CaCl2 - 2 H20 FeSO4 · 7 H20 Na2S2O3 - 5 H20 Ba(OH)2 8 H20 MnSO4 H2O 4. A student worked with a sample of ZnSO4.7H2O. a. How many atoms of each element are present? b. What is the stoichiometric ratio of salt to water? c. Calculate the percent of water in the hydrate. Show your work.
Part 2: Mole Calculations (8 pts) 1. How many moles of sodium carbonate are there in...
Part 2: Mole Calculations (8 pts) 1. How many moles of sodium carbonate are there in 75 grams of K2COs? 2. How many moles of each atom are there in 5 moles of Cus(PO)2 3. How many molecules of dinitrogen tetroxide (N204) are there in 80 g of N204? 4. How many grams does one molecule of carbon dioxide (CO2) weigh? The balanced equation for production of carbon dioxide is C(s) + Oz(g) → CO2(g). How many grams of CO2are...
How many moles of pd metal are in each mole of the catalyst? How many moles...
How many moles of pd metal are in each mole of the catalyst? How many moles of pd metal are added to the reaction, assuming you use 1 mL of 0.25 M solution? What is the ratio of the number of moles of pd to moles of limiting reagent? 1 mL of Pd 0.5g of 4-bromobenzoic acid 0.37g of phenylboronic acid Reaction For today's reaction, you will use 4-bromobenzoic acid and phenylboronic acid to make 4- phenylbenzoic acid (also known...
Question 17 3.5 pts How many moles of salt is produced when solutions of barium chloride...
Question 17 3.5 pts How many moles of salt is produced when solutions of barium chloride and sodium chromate are added to a beaker? (Assume the reaction goes to completion.) O 1 O 2 o 3 04 05
Please help me with it What was the weight percent of water in the hydrate before...
Please help me with it
What was the weight percent of water in the hydrate before heating? Put answer in one decimal place. weight of water O.505 weight of hydrate 2.209 How many moles of water were lost if the amount of water lost was 0.415 grams? Do not include units and assume three significant figures m all numbers. Be sure to include the zero before the decimal if the number is less than one. How many moles of water...
how many moles of water, H2O, are present in 25.0 g H2O? How many moles of...
how many moles of water, H2O, are present in 25.0 g H2O?
How many moles of water, H20, are present in 25.0 g H20? 4.41 moles 0.56 moles O 1.39 moles 7.50 moles 1.35 x 103 moles
help with All 8 questions please Question 13 2 pts How many moles of carbon are...
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
When a mole of decane undergoes complete combustion, how many moles of water are formed?
When a mole of decane undergoes complete combustion, how many moles of water are formed?
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H2...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
3. Assume your salt sample released 4.5 grams of water. How many moles of water were...
3. Assume your salt sample released 4.5 grams of water. How many moles of water were in your sample? (Please, show your work)
3. What is the mole ratio of salt to water for the following compounds? Hydrate Salt Water CaCl2 - 2 H20 FeSO4 · 7 H20 Na2S2O3 - 5 H20 Ba(OH)2 8 H20 MnSO4 H2O 4. A student worked with a sample of ZnSO4.7H2O. a. How many atoms of each element are present? b. What is the stoichiometric ratio of salt to water? c. Calculate the percent of water in the hydrate. Show your work.
Part 2: Mole Calculations (8 pts) 1. How many moles of sodium carbonate are there in 75 grams of K2COs? 2. How many moles of each atom are there in 5 moles of Cus(PO)2 3. How many molecules of dinitrogen tetroxide (N204) are there in 80 g of N204? 4. How many grams does one molecule of carbon dioxide (CO2) weigh? The balanced equation for production of carbon dioxide is C(s) + Oz(g) → CO2(g). How many grams of CO2are...
How many moles of pd metal are in each mole of the catalyst? How many moles of pd metal are added to the reaction, assuming you use 1 mL of 0.25 M solution? What is the ratio of the number of moles of pd to moles of limiting reagent? 1 mL of Pd 0.5g of 4-bromobenzoic acid 0.37g of phenylboronic acid Reaction For today's reaction, you will use 4-bromobenzoic acid and phenylboronic acid to make 4- phenylbenzoic acid (also known...
Question 17 3.5 pts How many moles of salt is produced when solutions of barium chloride and sodium chromate are added to a beaker? (Assume the reaction goes to completion.) O 1 O 2 o 3 04 05
Please help me with it
What was the weight percent of water in the hydrate before heating? Put answer in one decimal place. weight of water O.505 weight of hydrate 2.209 How many moles of water were lost if the amount of water lost was 0.415 grams? Do not include units and assume three significant figures m all numbers. Be sure to include the zero before the decimal if the number is less than one. How many moles of water...
how many moles of water, H2O, are present in 25.0 g H2O?
How many moles of water, H20, are present in 25.0 g H20? 4.41 moles 0.56 moles O 1.39 moles 7.50 moles 1.35 x 103 moles
help with All 8 questions please
Question 13 2 pts How many moles of carbon are there in 19.3 g of sucrose, CH120.? Use 180.16 g/mol as the mw of ose. Give your answer three decimal places. su Question 14 3 pts A sample of C6H12 has 34.5 g of carbon. How many moles of CH 12 are there? Use 12.01 g/mol as the mw of carbon and 84.16 g/mol as the mw of C6H12. Give your answer to three...
Question 4 1 pts Which of the following mole ratios CANNOT be derived from the reaction 2 502 (g) + O2 (g) + 2 H20 (1) --> 2 H2SO4 (aq) ? 02 mol SO2 2 mol H2SO4 2 mol H2SO4 2 mol O2 0 1 mol O2 2 mol H20 O 2 mol O2 1 mol O2 2 mol H20 2 mol SO2 Question 1 1 pts What do the coefficients in a balanced equation tell us? Mark ALL that...
3. Assume your salt sample released 4.5 grams of water. How many moles of water were in your sample? (Please, show your work)
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