Valproic acid, used to treat seizures and bipolar disorder, iscomposed of C, H, and O. A 0.165-g sample is combustedto produce 0.166 g of water and 0.403 g of carbon dioxide.What is the empirical formula for valproic acid? If the molarmass is 144 g/mol, what is the molecular formula?

Q: Lysine, an essential amino acid in the human body, contains C, H, O, and N. In one experiment, the…

A: The atomic masses areC: 12.011 uH: 1.008 uN: 14.007 uO: 15.999 uThe gram molar masses are

Q: Methanethiol (CH4S) has a disagreeable odor and is oftena component of bad breath. When methanethiol…

A: Methanethiol is an organosulfur compound and its chemical formula is CH ₃SH. It is a colorless gas…

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: The combustion equation for octane can be written as: Distance = 225 mi Mileage = 20.5 mi / gallon…

Q: The semiconductor gallium arsenide, GaAs, is used in highspeedintegrated circuits, light-emitting…

A: Number of Mole- Ratio of given mass of substance to the molar mass of substance is called number of…

Q: СаСОз + H3PO4 Ca3(PO4)2 + CO2 +_ H,O - - - REACTANTS PRODUCTS Element Symbol How Many? Element…

A: Answer

Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A:

Q: Epsom salts, a strong laxative used in veterinary medicine,is a hydrate, which means that a certain…

A: A compound which has definite amount of water is present in the form of H2O molecule, is called…

Q: Narceine is a narcotic in opium that crystallizes from solution as a hydrate that contains 10.8 mass…

A: Given : Mass percentage of water = 10.8% Molar mass of nicotine = 499.52 g/mol

Q: (a) If an automobile travels 225 mi with a gas mileage of 20.5mi/gal, how many kilograms of CO2 are…

A: (a) Volume of the gas can be calculated as: Since, 1 gal = 3785.41 mL Therefore, From the Density:

Q: Solid lithium hydroxide is used in space vehicles to remove the carbon dioxide gas exhaled by…

A:

Q: Citric acid (right) is concentrated in citrus fruits and plays a central metabolic role in nearly…

A: the molecular formula of the citric acid is C6H8O7. Molar Mass = 192.12 g/mol

Q: 1.003 g of soduim chloride was recovered in the reaction of Hydrochloric acid + Sodium carbonate →…

A: The reaction of hydrochloric acid with sodium carbonate forms sodium chloride, carbon dioxide and…

Q: What is the percentage of calcium carbonate present in the original mixture?

A:

Q: For the reaction З КОН + Н, РО, — К, РО, + 3Н,О 4 4 how many grams of potassium phosphate, K3PO4,…

A: We have given the balance chemical equation as follow      3KOH  +  H3PO4   →  K3PO4  + 3H2O We have…

Q: Methanethiol (CH4S) has a disagreeable odor and is often a component of bad breath. When…

A: The balanced reaction of combustion of CH4S is as follows: CH4S+3O2→SO2+2H2O+CO2 Determination of…

Q: An infant dose of acetaminophen (C8H9NO2) is 0.080 g. How many moles of acetaminophen are in each…

A: Given, Mass of acetaminophen = 0.080g.

Q: Sixty grams of FeCl3 react with 50.0g of H2S. What is the limiting reactant? What is the mass of HCl…

A:

Q: 3) What kind of formular is C,H,O2 consider as? A) Empirical formula B) Moleculr formula C)…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solve first question…

Q: • Sodium metal reacts with hydrogen to form sodium hydride (NaH) 2Na + H,-------> 2 NaH f 10 grams…

A: Recall the data, mass of Na =10 g, molar mass = 23 g mol-1 mass of H2= 8 g , molar mass = 2 g mol-1…

Q: The characteristic odor of pineapple is due to ethyl butyrate,a compound containing carbon,…

A:

Q: (a) Caproic acid, responsible for the odor of dirty socks, iscomposed of C, H, and O atoms.…

A:

Q: For the combustion reaction of hydrogen gas, how many moles of excess reactant would exist if 6…

A: A reagent which is totally consumed in a chemical reaction is called limiting reagent.

Q: 2. Percentage Composition a. % of water in Iron (III) phosphate tetrahydrate b. % of hydroxide ions…

A: A). Molecular weight of FePO4 .4H2O = 222.88 g/mol Molecular weight of four  moles H2O = 4×18.015 =…

Q: This organic compound consists of 54.4% carbon, C and 9.1% hydrogen, H, while the remaining percent…

A:

Q: What is the molarity of a solution prepared by dissolving 37 mol KMNO4 in enough water to make 903 L…

A: Dear student I have given answer to your question in the image format.

Q: Silver chloride is an antiseptic substance that is used in some bandages and deodorants. Let's say…

A: Answer: Given reaction between silver nitrate and potassium chloride is shown below:…

Q: (a) Combustion analysis of toluene, a common organicsolvent, gives 5.86 mg of CO2 and 1.37 mg of…

A: (a) The number of moles of C and H present in the hydrocarbon can be calculated using the mass of…

Q: In the reaction shown, what is the mole ratio of carbon dioxide and water? 2C4H10 + 13 O2 ---->…

A: Mole of the substance is calculated by using below formula,

Q: Menthol, the substance we can smell in mentholated cough drops, is composed of C, H and O. A…

A: Given: Mass of sample = 0.1005 g Mass of CO2 = 0.2829 g. Mass of H2O = 0.1159 g. Molar mass of CO2 =…

Q: The first step in the reaction of Alka-Seltzer with stomach acid consists of one mole of sodium…

A: Since it is given that 1 mole of NaHCO3 is reacting with one mole of HCl Hence 3 moles of NaHCO3…

Q: Suppose 2.60 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2O5. How many moles of…

A: Ans. Dichlorine pentoxide formation: (a) moles of oxygen             2Cl2+5O2 → 2Cl2O5      (2…

Q: Menthol, the substance we can smellin mentholated cough drops, is composed of C, H, and O. A0.1005-g…

A: Calculated the number of moles of C and H present in the hydrocarbon,

Q: 3. What physical property of water and HCl allows us to separate them from the zinc chlorine…

A: Solution: We know the solubility principle i.e. likes dissolves like. Since HCl is the strong acid…

Q: in a combustion analysis of a 0.152g sample of the artificial sweetner aspartame, it was found that…

A:

Q: Ferrocene, synthesized in 1951, was the first organic iron compound with FeC bonds. An understanding…

A: Given: Mass of sample=0.9437g Mass of CO2 produced= 2.233g Mass of water produced=0.457g We know…

Q: Iron ore is impure, Fe2O3. When Fe2O3 is heated with an excess of carbon (coke), metallic iron and…

A: Mass of sample=938 gMass of Iron obtained=523 gmass % of Fe2O3=?

Q: A 161 g sample of MnCl₂·nH₂O yields 112 g of the anhydrous compound after heating. Determine n in…

A: A 161 g sample of MnCl2.nH2O yields 112 g of anhydrous compound after heating. We have to determine…

Q: The ethyl alcohol(Mw=46.06 g/mol) content of many juice produced in the United States is 4.05%…

A: The given data: The %(v/v) of ethyl alcohol = 4.05 % The density of alcohol = 0.7893 g/mL To…

Q: 250 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A:

Q: Aqueous hydrochloric acid (HC1) reacts with solid sodium hydroxide (NaH) to produce aqueous sodium…

A: Hydrochloric acid reacts with sodium hydroxide to form sodium chloride and water. The equation for…

Q: A 0.025-g sample of a compound composed of boron and hydrogen, with a molecular mass of ~28 amu,…

A: The empirical formula is the chemical formula of any compound that represents the proportions of…

Q: Liquid nitromethane was once widely used as an explosive but is now much more common as a fuel for…

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Q: 1. Calculate the molecular mass, in g/mol, of iron (II) sulfate heptahydrate. work. 2. Adipic acid…

A: we have to find molar mass of the given compound

Q: Write The Molecular Fotmula For The Following 1-Copper Sulfate 2-Phospours Pentabromide 3-Calicum…

A: Hello, since your question has multiple parts, we will solve the first question for you. If you want…

Q: TReview Topics [Rererences Use the References to access important values if needed for this…

A: Moles of compound combusted = mass of compound / molar mass of compound = 10.08 / 62.07 = 0.1624…

Q: The first step in the reaction of Alka-Seltzer with stomach acid consists of one mole of sodium…

A:

Q: Terephthalic acid used in the production of polyester fibers and films, is composed of carbon,…

A: Please find your solution below :

Q: The semiconductor gallium arsenide, GaAs, is used in highspeedintegrated circuits, light-emitting…

A: The reaction of (CH3)3Ga with AsH3 produced GaAs and methane. The balanced chemical reaction can be…

Q: 16. 2K + Br, 2KBR 71.1g Br, is reacted, and 64.1g KBr is produced. What is the percent yield for the…

A: The given chemical reaction is: 2K+Br2→2KBr. Then, 1g of Br2 formed --- 64.1g of KBr. Calculate the…

Q: How many moles of H2SO4 are there in 117.4 mL of a stock solution that reads 0.763M ?

A:

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.