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Name: Makeup Lab Assignment 1. Calculate the molar mass of each of the following molecules. Show your work and roun...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) S...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
Post-lab Questions 1. Calculate the molar mass of H2O and CuSO4 (Relative atomic masses). Express your...
Post-lab Questions 1. Calculate the molar mass of H2O and CuSO4 (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (+ 0.01 g/mol). Show your work. 2. Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your experiment. Express your answers in grams to the nearest hundredth (+ 0.01 a). Show your work 3. Calculate the number of moles of copper (II) sulfate present. Express your answer in...
Post-lab Questions 1. Calculate the molar mass of H2O and CuSOs (Relative atomic masses). Express your...
Post-lab Questions 1. Calculate the molar mass of H2O and CuSOs (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (t 0.01 g/mol). Show your work Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your 2. experiment. Express your answers in grams to the nearest hundredth (t 0.01 g). Show your work. pper 3. Calculate the number of moles of copper (II) sulfate present. Express your answer...
Problem 7.37 - Clinical Applications Calculate the molar mass for each of the following Part A Al(SO4), antiperspi...
Problem 7.37 - Clinical Applications Calculate the molar mass for each of the following Part A Al(SO4), antiperspirant Express your answer to two decimal places and include the appropriate units. ANSWER Part B NaHCO, baking soda Express your answer to two decimal places and include the appropriate units ANSWER Part C C, H, NO, paracetamol used to treat pain and fever. Express your answer to two decimal places and include the appropriate units. ANSWER Problem 7.47 Calculate the number of...
Name CHEMISTRY 2A Study Assignment 11, Moles and Molar Mass Problems. Use dimensional analysis to solve...
Name CHEMISTRY 2A Study Assignment 11, Moles and Molar Mass Problems. Use dimensional analysis to solve the following problems. Pay attention to correct use of wants and correct use of significant figures in calculations 1) Convert 8.00 moles of aluminum to grams. A1= 26.98 8.00 mol A1 x 26,989 = 215,849 Im A 03 215.549 2) Convert 10.5 moles of aluminum chloride to grams. A=26.98 10.5 mol Alc1 X 62.429 = 655.53 cl=35.45 I mol All 655.59 3) Convert 0.250...
Calculations You must show your work, report your answer in using the correct scientific notation, and...
Calculations You must show your work, report your answer in using the correct scientific notation, and use the appropriate number of significant figures. 11. (6 pts.) Perform the following conversions: a. 6.52 grams (g) of CH4 to moles of CHA: b. 2.56 mole of CH4 to molecules of CHA: c. 3.65 x 1022 molecules of CH4 to grams (g) of CHA
Please Show All Work SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The...
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
Conversions. SHOW YOUR WORK! You will be graded on correct units and setup as well as...
Conversions. SHOW YOUR WORK! You will be graded on correct units and setup as well as the final answer. Note: for molar mass, use all digits given on the periodic table (do not round the molar mass). How many molecules of CHO are in 2.67 moles of C3H2O? Answer = What is the mass, in grams, of 9.57 x 1022 atoms of Ca? Answer =
Show work as well Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part...
Show work as well
Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part 3) 1. A student determined percent of Br in a sample of an unknown bromide gravimetrically by dissolving 1.691 of solid unknown in water, adding excess of AgNO, and precipitating AgBr. He obtained 3.450 g of AgBr. Using these data, calculate % bromide in the unknown. (Give set-up and numerical answer. If you use more than one step in your calculations, show all work.)...
1. Complete the table. Substance Mass Moles N0. of particle (atoms or molecules) Ar 5.0*10^-4 NO2...
1. Complete the table. Substance Mass Moles N0. of particle (atoms or molecules) Ar 5.0*10^-4 NO2 1.34*10^20 K 21.4 mg C8H18 2.50 kg 2.Complete The table Substance Mass Moles Number OF particles (atoms or molecules) C6H12O6 19.0 g Pb 8.24*10^21 CF4 24.5 kg C 0.0406 3. Amylose is a "polysaccharide" that plants use to store energy. It is made of repeating subunits of C6H10O5. a. A particular amylose molecule has 2113 of these subunits, what is its molecular formula? Express...
1) For the following determine the molecular weight and the molar mass. Round all mass to two decimal points. (5) Substance Melecular weight am Molar mass (g) LiP MON ZASO, Nichek) nitrate Irell) phosphate For the following mole calculations use dimensional analysis, showing the canceling of the units, and retain in your answer the number of significant figures in the measurements that is initially given to you. 2) Convert the following mass values to moles or mole values to masses....
Post-lab Questions 1. Calculate the molar mass of H2O and CuSO4 (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (+ 0.01 g/mol). Show your work. 2. Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your experiment. Express your answers in grams to the nearest hundredth (+ 0.01 a). Show your work 3. Calculate the number of moles of copper (II) sulfate present. Express your answer in...
Post-lab Questions 1. Calculate the molar mass of H2O and CuSOs (Relative atomic masses). Express your answers in grams per mole to the nearest hundredth (t 0.01 g/mol). Show your work Calculate the mass of water driven off and the mass of copper (II) sulfate formed in your 2. experiment. Express your answers in grams to the nearest hundredth (t 0.01 g). Show your work. pper 3. Calculate the number of moles of copper (II) sulfate present. Express your answer...
Problem 7.37 - Clinical Applications Calculate the molar mass for each of the following Part A Al(SO4), antiperspirant Express your answer to two decimal places and include the appropriate units. ANSWER Part B NaHCO, baking soda Express your answer to two decimal places and include the appropriate units ANSWER Part C C, H, NO, paracetamol used to treat pain and fever. Express your answer to two decimal places and include the appropriate units. ANSWER Problem 7.47 Calculate the number of...
Name CHEMISTRY 2A Study Assignment 11, Moles and Molar Mass Problems. Use dimensional analysis to solve the following problems. Pay attention to correct use of wants and correct use of significant figures in calculations 1) Convert 8.00 moles of aluminum to grams. A1= 26.98 8.00 mol A1 x 26,989 = 215,849 Im A 03 215.549 2) Convert 10.5 moles of aluminum chloride to grams. A=26.98 10.5 mol Alc1 X 62.429 = 655.53 cl=35.45 I mol All 655.59 3) Convert 0.250...
Calculations You must show your work, report your answer in using the correct scientific notation, and use the appropriate number of significant figures. 11. (6 pts.) Perform the following conversions: a. 6.52 grams (g) of CH4 to moles of CHA: b. 2.56 mole of CH4 to molecules of CHA: c. 3.65 x 1022 molecules of CH4 to grams (g) of CHA
Please Show All Work
SHOW ALL UNITS IN YOUR CALCULATIONS AND ANSWERS FOR CREDIT 1. The mass of a single atom of an unknown element is 1.792x1022 grams. Answer the following questions about this unknown element. a) What is the mass of one atom of the unknown element in atomic mass units (amu)? Hint: 1 amu 1.661x1024 g (3 pts) Answer: b) How many atoms of this unknown element are there in 1.00 mole of this element? (1 pt) Answer:...
Conversions. SHOW YOUR WORK! You will be graded on correct units and setup as well as the final answer. Note: for molar mass, use all digits given on the periodic table (do not round the molar mass). How many molecules of CHO are in 2.67 moles of C3H2O? Answer = What is the mass, in grams, of 9.57 x 1022 atoms of Ca? Answer =
Show work as well
Your T. A.'s Name Lab meeting time Your Name Pre-Laboratory Assignment (Part 3) 1. A student determined percent of Br in a sample of an unknown bromide gravimetrically by dissolving 1.691 of solid unknown in water, adding excess of AgNO, and precipitating AgBr. He obtained 3.450 g of AgBr. Using these data, calculate % bromide in the unknown. (Give set-up and numerical answer. If you use more than one step in your calculations, show all work.)...
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