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please show how to calculate molar mass, and how to calculate
mole from molar mass..please will...
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....
please show working too on how to get molar mass for hydrate, anhydrous, and water 9....
please show working too on how to get molar mass for hydrate,
anhydrous, and water
9. The mass of a test tube and hydrate was 35 2755 grams. The mass of the empty test tube was 23.7726 grams. The mass of the anhydrous salt and test tube was 31.0035 grams a. Find the mass of the original hydrate Show work for credit) b. Find the mass of the water lost after heating (Show work for credit) c. What was the...
use the information given to calculate the formula for mass/molar mass of the anhydrous salt of...
use the information given to calculate the formula for
mass/molar mass of the anhydrous salt of your unknown sample(show
calculations)
B. Determine the Formula of an Unknown Hydrate Unknown sample number: 20 Nickel II Molecular formula of the unknown: 1. Mass of crucible + unknown hydrate Nisou "X"H60 (sulfate) 37.40g 36-3lg 1:09g 2. Mass of crucible 3. Mass of unknown hydrate( 1 - 2) 4. Mass of crucible + anhydrous salt a. after first heating b. after second heating 31.3919...
A student is given a sample of a calcium sulfate hydrate. He places the sample in...
A student is given a sample of a calcium sulfate hydrate. He places the sample in a dry, covered crucible and weighs it. The total mass (crucible, cover, and hydrate) is 19.39219.392 g. The crucible and cover together had previously weighed 17.98717.987 g. He then heats the crucible to redness for 10 minutes with the cover slightly ajar. After the crucible cools, he weighs the crucible and its contents; the mass is now 19.09819.098 g, due to the loss of...
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in...
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in a dry, covered crucible and obtains a mass of 24.747 g for the crucible, cover, and sample. Earlier she had found that the crucible and cover weighed 23.599 g. She then heats the crucible to drive off the water of hydration, keeping the crucible at red heat for about 10 minutes with the cover slightly ajar. She then lets the crucible cool, and finds...
i need help with questions A-E please The Mole Concept: Chemical Formula of a Hydrate- Lab...
i need help with questions A-E please
The Mole Concept: Chemical Formula of a Hydrate- Lab Report Assistant Exercise 1: Water of Hydration Data Table 1. Alum Data. Object Mass (g) Aluminum Cup (Empty) 3 Aluminum Cup +2.00 grams of Alum5 Aluminum Cup + Alum After 1 Heating 4.44 Aluminum Cup + Alum After 2 Heating 3.52 Mass of Released HO 1.48 Molecular Mass of H,0 18.015 Moles of Released H,0 OU54 Questions: A) Calculate the moles of anhydrous (dry)...
Please help quickly. I only have 25 mins 7. What is the molar mass, in grams,...
Please help quickly. I only
have 25 mins
7. What is the molar mass, in grams, of a compound whose chemical formula has three calcium atoms, two phosphorus atoms, and eight oxygen atoms? Show work to get credit. No work, no credit. 8. Calculate the number of moles in 28.65 grams of the compound in question 7. Hint: you calculated the molar mass of the compound in question 7. Show work to get credit. No work, no credit. 9. Calculate...
Need help slolving questions 1-6 please! Mass A Moles A Moles B Mass B Molar mass...
Need help slolving questions 1-6 please!
Mass A Moles A Moles B Mass B Molar mass A Molar mass B Ratio from balanced equation 1. How many moles of H2 can be made from complete reaction of 3.0 moles of AI? (5 pts) Given: 2 Al(s) + 6 HCl(aq)-2 AICI, (aq) + 3 H2(aq) 2. How many grams of water are made from the reaction of 4.0 grams of hydrogen gas? (10 pts) Given the reaction: 2H,(8) +0,(8) 2.0(g) 3....
Use the compound Al(NO3)3 to answer the following questions: 1. What is the molar mass of...
Use the compound Al(NO3)3 to answer the following questions: 1. What is the molar mass of this compound? Show your work. 2. How many moles of this compound are found in 5 grams of the compound? Show your work. 3. How many molecules is this? Show your work.
determining the formula of a hydrate of calcium chloride (CaCl2·X H2O). Mass (g) Crucible and Lid...
determining the formula of a hydrate of calcium chloride (CaCl2·X H2O). Mass (g) Crucible and Lid 28.4735 Crucible and Lid + hydrate salt 33.1938 Crucible and Lid + anhydrous residue 32.0339 What is the mass of the hydrate? mass = ___ g What is the mass of the anhydrous residue? mass = ___ g What is the mass of water lost upon heating the sample? mass = ___ g How many mol of H2O were lost upon heating? (H2O: 18.016...
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....
please show working too on how to get molar mass for hydrate,
anhydrous, and water
9. The mass of a test tube and hydrate was 35 2755 grams. The mass of the empty test tube was 23.7726 grams. The mass of the anhydrous salt and test tube was 31.0035 grams a. Find the mass of the original hydrate Show work for credit) b. Find the mass of the water lost after heating (Show work for credit) c. What was the...
use the information given to calculate the formula for
mass/molar mass of the anhydrous salt of your unknown sample(show
calculations)
B. Determine the Formula of an Unknown Hydrate Unknown sample number: 20 Nickel II Molecular formula of the unknown: 1. Mass of crucible + unknown hydrate Nisou "X"H60 (sulfate) 37.40g 36-3lg 1:09g 2. Mass of crucible 3. Mass of unknown hydrate( 1 - 2) 4. Mass of crucible + anhydrous salt a. after first heating b. after second heating 31.3919...
A student is given a sample of a manganese(II) chloride hydrate. She weighs the sample in a dry, covered crucible and obtains a mass of 24.747 g for the crucible, cover, and sample. Earlier she had found that the crucible and cover weighed 23.599 g. She then heats the crucible to drive off the water of hydration, keeping the crucible at red heat for about 10 minutes with the cover slightly ajar. She then lets the crucible cool, and finds...
i need help with questions A-E please
The Mole Concept: Chemical Formula of a Hydrate- Lab Report Assistant Exercise 1: Water of Hydration Data Table 1. Alum Data. Object Mass (g) Aluminum Cup (Empty) 3 Aluminum Cup +2.00 grams of Alum5 Aluminum Cup + Alum After 1 Heating 4.44 Aluminum Cup + Alum After 2 Heating 3.52 Mass of Released HO 1.48 Molecular Mass of H,0 18.015 Moles of Released H,0 OU54 Questions: A) Calculate the moles of anhydrous (dry)...
Please help quickly. I only
have 25 mins
7. What is the molar mass, in grams, of a compound whose chemical formula has three calcium atoms, two phosphorus atoms, and eight oxygen atoms? Show work to get credit. No work, no credit. 8. Calculate the number of moles in 28.65 grams of the compound in question 7. Hint: you calculated the molar mass of the compound in question 7. Show work to get credit. No work, no credit. 9. Calculate...
Need help slolving questions 1-6 please!
Mass A Moles A Moles B Mass B Molar mass A Molar mass B Ratio from balanced equation 1. How many moles of H2 can be made from complete reaction of 3.0 moles of AI? (5 pts) Given: 2 Al(s) + 6 HCl(aq)-2 AICI, (aq) + 3 H2(aq) 2. How many grams of water are made from the reaction of 4.0 grams of hydrogen gas? (10 pts) Given the reaction: 2H,(8) +0,(8) 2.0(g) 3....
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