74. A throat lozenge contains 5.0 mg of menthol, which has the formula C10H20O. How many moles of menthol are in 5.0 mg of menthol? What is the mass in grams of 1.56 moles of menthol? 79. For each of the following ionic substances (a) Co2O3 and (b) Fe2(C2O4)3, calculate its formula mass and write a conversion factor that converts between mass in grams and moles of the substance.

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A:

Q: 6)An unknown compound is composed of 25.24% by mass of sulfur and 74.76% by mass of fluorine. If the…

A: Given:  Molar mass of compound= 254.11 g/mol  Mass % of sulfur= 25.24 %  Mass% of fluorine= 74.76 %

Q: A certain metal, M, forms two oxides, M2O and MO. If the percent by mass of M in M2O is 73.4%, what…

A: The answer is given below

Q: When 6.65 g of the hydrate NiSO4 • xH2O was heated in a vacuum, the water was driven off and 3.67 g…

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A:

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Q: Calculate the mass in grams of 1.10 x 1024 molecules of Sulfane, H2S. g NA= 6.022 x 1023

A:

Q: Phosgene, a substance used in poisonous gas warfare during World War I, is so named because it was…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: An Organic compound contains 59.00% by mass C, 7.15% by mass H, 7.65% by mass N, and 26.20% by mass…

A:

Q: 4.104. When 2.750 g of the oxide Pbạ O4 is heated to a high temperature, it decomposes to produce…

A: Pb3O4     ------>     O2   +  PbxOy Mass of Pb3O4 = 2.750 g  Molar mass of Pb3O4 =  685.6 g/mol…

Q: Calculate the mass (in kilograms) of chlorine in 25 kg of each chlorofluorocarbon (CFC). a. CF,Cl2…

A: Solution-  mass of the clorine in the CF2Cl2-=molar mass of colorinemolar mass of the…

Q: 1.) Iron (II) sulfate, FeSO4, is prescribed for the treatment of anemia. a.) How many moles of…

A: Mole is defined as the ratio of given mass and molar mass. The unit of mole is mol. It is utilized…

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A: Answer is explained below.

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Q: A sample of 5.304 grams of a compound containing carbon and hydrogen reacts with oxygen at elevated…

A: Note: due to guidelines, we have to do 3 subparts.

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A:

Q: A compound of C,H,N and O has the following percent composition by mass: 17.8% C, 2.22% H, and 20.7%…

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Q: A well-known reagent in analytical chemistry, dimethylglyoxime, has the empirical formula C2HANO. It…

A: The atomic massses are as follows : C: 12 g/mol H: 1 g/mol N: 14 g/mol O: 16 g/mol B : 11 g/mol

Q: A 3.87g sample of nitrous oxide (an anesthetic sometimes called laughing gas) contains 5.30x1022 N2O…

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Q: b. a compound that is 63.5 % Ag, 8.2 % N, and 28.3 % O %3D 5. Aspartame is an artificial sweetener…

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Q: What is the mass percent of silicon dioxide (SiO2) if you are able to separate 2.202g out of a…

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Q: Nicotine, a poisonous compound found in tobacco leaves, is 74.0 % C, 8.65 % H, and 17.35% N. Its…

A: Given: Percentage of C in nicotine = 74.0 % Percentage of H in nicotine = 8.65 % Percentage of N in…

Q: A particular oral contraceptive contains 0.044 mg of ethinyl estradiol in each pill. The formula of…

A: Number of moles = given mass / molecular mass

Q: 2) What is the mass of 5.13 moles of Na2Cr2O7?

A: Solution First, we need to find out the molar mass of Na2Cr2O7 The molar mass of = (Number of atoms…

Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

A: In order to calculate number of molecules of ethanol, first we have to calculate the number of moles…

Q: 3. a. If "Epsom salt", MgSO4. xH₂O, is heated to 250 ° C, all the water of hydration is lost. Write…

A: Epsom salt = MgSO4. xH2O xH2O is the water of crystallization attached physically to the salt.   a)…

Q: A metal sulfide M2S contains 14.3% of sulfur by mass. What is the identity of the metal in this…

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Q: Capsaicin, the compound that gives the lhot taste to chili peppers, has the formula C18H27NO3.(a)…

A: Given:

Q: 5) How many moles are in 54.4 grams of water (H,O)? 6) How many grams would 8.88 x 10 atoms of NaCl…

A:

Q: hat is the molecular formula of a compound containing 24.27 carbon, 4.07% hydrogen and 71.76%…

A: Given  Carbon = 24.27%  Hydrogen = 4.07%  Chlorine = 71.76%  Molar mass = 98.96 g/mol  Atomic weight…

Q: How do I calculate the number of molecules in 6.00 ml of acetic anhydride, C4H6O3, if the density of…

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Q: A single tablet of regular strength Tylenol contains 325 mg of the active ingredient, acetaminophen…

A: The molecular formula of acetaminophen has been provided as C8H9NO2.

Q: . What is the number of moles of nitrogen if the mass of morphine is ninety-two point four grams? 2.…

A: 1. What is the number of moles of nitrogen if the mass of morphine is ninety-two point four grams?…

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A: The molecular formula of capsaicin is C18H27NO3.

Q: A compund with the formula M(NO3 )2 contains 53.4% oxygen by mass. What is the identity of element…

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Q: How many molecules of ethanol (C2H5OH) (the alcohol in alcoholic beverages) are present in 145 mL of…

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A: Since you have posted multiple un-related questions, we are entitled to answer the first only.

Q: Enter your answer in the provided box. For many years the extraction of gold-that is, the separation…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".