The formula for lactose is C12H22O11, and the monohydrate is C12H22O11*H2O. What is the percent by weight of lactose in lactose monohydrate? Give your answer to four significant digits as a percentage

Q: For numbers 20-25: Nitric acid is prepared from the reaction of 69.0 grams of nitrogen dioxide with…

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Q: how many atoms are there in one molecule of glucose(C6H12O6

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Q: sample of P4O10 with a mass of 44.9 g was treated in such a way that all of its phosphorus was…

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Q: How many grams of ibuprofen are in 0.540 moles?

A: number of moles = mass/molar mass  mass = moles × molar mass

Q: Calculate the percentage by mass of each element in the following compounds to one decimal place.…

A: The compound given is C12H22O11. Assuming 1 mole of C12H22O11.

Q: What is the molar mass of cholesterol if 0.00105 mol weighs 0.406 g? Express your answer using three…

A: The general formula required to calculated molar mass from moles and mass is as follows,…

Q: Flubberium (Symbol Fb) has a atomic mass of 3.8 grams, Vibranium (Symbol Vi) has an atomic mass of…

A: Given Molar mass of flubberium (Fb)= 3.8g Molar mass of Vi = 5.2 g Percentage composition of Fb is…

Q: Consider aspirin (acetylsalicylic acid), C9H8O4 a. How much does one mole of aspirin weigh, in…

A: The formula of aspirin given is C9H8O4.

Q: calculate the mass in grams of each of the following samples. 251 moleof lithium 51 molesof…

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Q: Assume that the molar mass of A is 82.93 grams per mole and the molar mass of E is 24.61 grams per…

A: Atoms are the smallest unit of the matter, anything which occupies space and has mass is known as…

Q: C,H12O6 С-НОН + 2 СО, glucose ethyl alcohol 57. (50a) If an 84.6% yield of ethyl alcohol is…

A: Please upload one question at a time. As there is something written for above 3 parts so I am…

Q: . Household sugar, sucrose, has the molecular formula C12H22011. What is the %, by mass, of carbon…

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Q: Ocean water contains 3.5% NaCl by mass. Part A How much salt can be obtained from 304 g of seawater?…

A: Given,  304g of sea water It is 3.5% NaCl by mass

Q: How many carbon atoms are present in 0.200 mol of C2H4? Please express the answer in scientific…

A: We know that 1 mol Carbon atom = 6.022×1023 atoms of carbon

Q: NItroglycer in (e3 HSN30,) 403 Hs Ng Oq >6Ngt 13c0, + 10 tgO + Og what is the maximum amount of Og…

A: Given  Reaction  4C3H5N3O9   → 6 N2 + 12CO2  + 10H2O + O2 Mass of O2 = 8.00 × 102 gram  Mass of O2…

Q: 118kg/m3 is equal to how many g/cm3?  Give your answer to three below the decimal place.

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Q: If a sample of urea, CH4N2O, is 86% pure, what is the percent by mass of nitrogen in this sample…

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Q: A particular recipe calls for 342 grams of sucrose (C12H22011). How many moles of sucrose are in…

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Q: how many grams of H2O will contain 9.50x10^24 hydrogen atoms?

A: Given: H2O water molecule 9.50x1024 hydrogen atoms 2 H atoms are present in one mole of H2O. That is…

Q: b. NaNO₂ (Ka of HNO₂ = 4.5 x 10-4) c. NH4NO3 (Kb of NH3 = 1.76 x 10-5)

A: Here we have to calculate the pH of the 0.100 M of the given salts. NaNO2 is a salt of weak acid(…

Q: Determine the formula weight of caffeine, C₈H₁₀N₄O₂. Provide an answer to two decimal places.

A: The formula weight of caffeine can be calculated as follows:

Q: Suppose a student measured the mass of a sample that has a known mass of 40.5809 g using an…

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Q: 1: How many carbon atoms are present in a mole of ¹2C? 12 Express your answer using four significant…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: An antibiotic containing sulfur was treated chemically to convert the sulfur in the antibiotic to…

A: Given: mass of antibiotic=24.57 mgmass of barium sylfate=16.38 mg To find: Percentage of sulfur in…

Q: An empty propane tank weighs 7.22 kg. When it is filled it weighs 25.20 kg. How many propane…

A: To find the number of molecules of propane.

Q: The formula for lactose is C12H22O11, and the monohydrate is C12H22O11H2O. What is the percent by…

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Q: This is the chemical formula for methyl tert-butyl ether (the clean-fuel gasoline additive MTBE):…

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Q: Given the following data, where did 339 come from? Component Chemical formula Percentage Mass of…

A: Dulong's formula for GCV is given by, Gross calorific value=1100[8080×%C+34,500×(%H-O8)+2,240S]…

Q: A compound contains arsenic and oxygen as the only elements. A 1.626 g sample of the compound…

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Q: During an experiment you extract 112 mg of caffeine from a 16g sample of coffee. What is the mass…

A: A) Given: The mass of caffeine in coffee = 112 mg = 0.112 g ( Since 1 mg = 0.001 g) The mass of…

Q: Determine the molar mass of CH3CH2OH. Provide an answer to two decimal places.

A: The question is based on the concept of molecular mass determination. by  using the atomic mass of…

Q: The human body has about 6 trillion cells (6.0x1012) and the population of the Earth is about 8…

A: no of moles of cells= no. of cells / 6.022×10^23

Q: How many moles of C2H4 contains 2.75x1023 atoms of H?

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Q: Ascorbic acid (C₆H₈O₆) is also known as Vitamin C. What quantity in molecules of C₆H₈O₆ does a…

A: To find molecules of vitamin C, first convert mass in grams then divide it by molar mass to get its…

Q: If 1.87 g of the acetic acid is mixed with 3.00 g of the isopentyl alcohol, the organic product is…

A: Acetic acid reacts with isopentyl alcohol to form isopentyl acetate and water.

Q: calculate the mass in grams of each of the following samples. 251 moleof lithium 51 molesof…

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Q: How many grams of sucrose (table sugar), C12H22O11, are needed to prepare 211g of syrup that is…

A: Given : mass of sugar solution to be prepared = 211 g And percent by mass of sucrose i.e solute = 35…

Q: This is the chemical formula for talc (the main ingredient in talcum powder): Mg3Si2O52OH2 An…

A: Given data: Number of moles of silicon = 13  Chemical formula of talc = Mg3(Si2O5)2(OH)2

Q: Determine the percentage by mass of each element in the following compounds. (Round your answers to…

A: Mass percent of an element:

Q: 2.50 moles of CH4 molecules contain ___ moles of H atoms. 1.51 x 10^24 0.625 5.00 10.0 2.50

A: . • The values provided in the question are:-        i) Number of moles of CH4 = 2.50 mol    • We…

Q: mothball, composed of naphthalene (C10H8C10H8), has a mass of 1.48 gg . How many naphthalene…

A: Mass= 1.48gm MOLAR mass= 128 Mole= mass÷molar mass Mole= 1.48÷128= 0.011 Molecule= mole×6×1023…

Q: How many carbon atoms are present in a mole of 12C? Express your answer using four significant…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Solve this: If a sample of urea, CH4N2O, is 86% pure, what is the percent by mass of nitrogen in…

A: mass percent is the percentage of mass of each element present in the compound

Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28g of carbon and…

A: Percent composition of the compound is described as the percent of mass of each component of the…

Q: How many grams of glucose (C2H12O6) would you need to get 5.0X1030 carbon atoms?

A: 1molecule of glucose(C6H12O6) contains 6 carbon atoms  => 1 mole of glucose contains 6 mole of C…

Q: A chemist determined by measurements that 0.0300 moles of beryllium participated in a chemical…

A: Since mass = moles X Atomic mass And Atomic mass of beryllium = 9 g/mol