Q: The mass of 5.15 moles of a compound is determined to be 298 g. What is the formula mass of the…
A:
Q: The molar mass of a compound (empirical formula C2H4O) is 132.0 g/mole. What is the molecular…
A: The given data contains, Molar mass = 132.0 g/mol.
Q: How many molecules of ethane (C,Hg) are present in 0.815 g of C,H6?
A: Given :- mass of C2H6 = 0.815 g To calculate :- number of molecules
Q: 3.118 Analysis of a metal chloride XCl3 shows that it contains67.2 percent Cl by mass. Calculate the…
A: The given data- The general formula for the metal chloride = XCl3 The % of Cl by mass = 67.2 % To…
Q: How many moles of NO3- are in 13.0 g of Ca(NO3)2?
A: 1 moles of Ca(NO3)2 contains 2 moles of Nitrate ions. Nitrate ions (NO3-) present in the sample =…
Q: A compound is determined to be 42.01 % carbon, 1.73 % hydrogen and 56.26 % oxygen by mass. a.…
A:
Q: In 1987 the first substance to act as a superconductor at a temperature above that of liquid…
A: Mass percent can be calculated using following formula.
Q: One of the hydrates of Na2CO3 is sodium carbonate decahydrate A 55.6 gram sample of Na2CO3 10 H2O…
A: b b
Q: What is the empirical formula for a compound that is comprised of 54.0% Sodium, 8.50% boron and…
A: The simplest formula or the empirical formula provides the lowest whole number ratio of atoms…
Q: A chloride of silicon contains 79.1 mass % Cl. (a) What is the empirical formula of the chloride?…
A: Consider weight of compound = 100 gmMole of Cl = 71.9 / 35.453 = 2.23Mass of Si = 100-79.1 = 20.9…
Q: A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is its…
A: To determine its molecular formula first empirical formula is needed. Empirical formula of a…
Q: A compound is found to contain 31.42 % sulfur, 31.35 % oxygen, and 37.23 % fluorine by mass. What is…
A:
Q: How many moles of hydrogen are in 3.06 10l g of glycine C,H,NO,?
A: Number of Mole-ratio of given mass of substance to the molar mass of substance is called number of…
Q: Which of the following is an empirical formula? O CGH1202 O C5H100 O CGH1203 O C7H14
A:
Q: A compound with an empirical formula of CFBrO and a molar mass of 253.8 grams per mole. What is the…
A: Given emiprical formula is = CFBrO Molar mass of the compound is = 253.8 gram
Q: A Chlorin oxide is 59.7 % by mass CI. What is the empirical ?formula of the oxide
A: Here i have mentioned the empirical formula
Q: A compound is 75.46% carbon, 4,43% hydrogen, and 20.10% ocygen by mass. It has a molecular masa of…
A: Given Element % of carbon(C) = 75.46 % = 75.46 g Element % of hydrogen(H) = 4.43 % = 4.43 g…
Q: A compound has an empirical formula of C2H4O and a molar mass of 88.g/mole. What is the molecular…
A:
Q: If the student used 3.103 g of MoOs, how many moles of MoO3 were present?
A:
Q: A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed…
A:
Q: What is the formula for the compound ?
A: The percent composition of an organic compound provides information about the percent/gram of each…
Q: Potassium manganate is a dark green , crystalline substance whose composition is 39.6 % К, 27.9% Mn,…
A:
Q: What is the molar mass of a particular compound if 0.081 mol weighs 5.84 g?
A: Given: Number of moles = 0.081 mol Weight of compound = 5.84 g
Q: Compound X is consisting of 38.70% carbon, 51.60% oxygen and the rest is hydrogen. The molar mass of…
A: Given: Mass ℅ of carbon = 38.70 ℅ Mass ℅ of oxygen = 51.60 ℅
Q: 39. A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is…
A: The percentage of Hydrogen is calculated as, 100-92.3 = 7.7%The percentage represents ‘parts per…
Q: The molar mass of water is 18.0 g/mol. How many hydrogen and oxygen atoms are present in 10.0 g of…
A:
Q: A compound has an empirical formula of CH2. An independent analysis gave a value of 70 g/mol for its…
A: Empirical formula is defined as the simplest positive integer ratio of each atom that are supposed…
Q: Calculate the number of moles of Li2SO4 with a molar mass of 109.95 g/mol in 52.0 grams of…
A:
Q: The characteristic odor of pineapple is due to ethyl butyrate an orgamic compound which contains…
A:
Q: What is the empirical formula of a compound composed of 81.71% C and 18.29% H by mass? empirical…
A:
Q: A chloride of silicon contains 79.1 mass % Cl. (a) What is the empirical formula of the chloride?…
A:
Q: A compound of mass 0.496g consisted of only C,H and O. It was completely burned in oxygen,producing…
A:
Q: Aspirin, C9H8O4, is a common pain reliever and is also often given in low doses daily for prevention…
A: Given :- number of moles of aspirin (C9H8O4) in sample = 0.0745 mol To calculate :- mass of aspirin…
Q: (COG 4) Aspirin, C9H8O4, is commonly used to treat pain, fever, and inflammation. Given that the…
A: Since moles is given by Moles = mass in g / molar mass
Q: What is the molar mass(g/mole) of baking soda NaHCO3 find the mass of each atom and add them…
A: The compound given is NaHCO3 Hence each molecule of NaHCO3 has 1) 1 Atom of Na 2) 1 atom of C 3) 1…
Q: Although somewhat toxic, barium chloride has been used as a cardiac stimulant. Calculate the number…
A: % by mass is given by % by mass = mass of solute X 100 / mass of solution Since here solute is…
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: A sample is found to contain 66.8 % NaHCO, by mass. What is the mass of NaHCO, in 4.25 g of the…
A: Mass by mass percentage (w/w) When mass of solute in a solution is expressed in grams of solute in…
Q: C4H7O if the molar mass of the molecular formula is 284.44 g/mole, determine the molecular formula
A: The given molecular formula is C4H7O To determine the molecular formula. Empirical formula mass = 4…
Q: 16] Pyrophosphoric acid is composed of 2.27% hydrogen and 34.80% phosphorus. The remainder is…
A: Determination of empirical formula The percentage composition of elements present in given compound…
Q: An industrial detergent was found to be composed of 57.72% C, 8.073% H, 17.09% O, by mass and the…
A: Let's assume, the empirical molecular formula of the given compound is CaHbOcX2c. 'a' is the no of…
Q: b: A compound is 16.2% car Its formula mass is arou What are its empirical a
A: Given, Carbon = 16.2 % Nitrogen =18.9% Oxygen = 64.9 % Molecular mass = 296 amu
Q: Percent Composition by Mass: = 3.907 g of carbon combines completely with O.874 g of hydrogen to orm…
A: The question is based on the concept of calculation of mass percent. the mass percent of an element…
Q: Give the empirical formula of each of the following compounds if a sample contains the following…
A: The number of moles of Carbon, Oxygen and Hydrogen in the compound is determined as given,
Q: A compound containing only sulfur and phosphorus is 50.9% S by mass; the molar mass is 252 g/mol.…
A:
Q: Determine the empirical and molecular formula of ibuprofen, a headache remedy that contains 75.69 %…
A: empirical formula is the simplest whole number ratio of atoms present in the compound. molecular…
Q: 3. How many moles of CaCO, are present in 1.30 grams?
A: Avogadro's defined 1 mol as the collection of 6.022 × 1023 atoms or the ratio of given mass to the…
Q: When 0.378g of Mg is heated in a Nitrogen (N2), a chemical reaction happens. The product of the…
A: Given data : Mass of Mg = 0.378 g Mass of product = 0.456 g
Q: Methane and ethane are the two simplest hydrocarbons.What is the mass % C in a mixture that is 40.0%…
A: Hydrocarbons are defined as the organic chemical compounds that contain only carbon and hydrogen…
Q: The empirical formula for a compound is CHN. What is the molecular formula of this compound if 0.1…
A: Simplest whole number ratio of atoms present in a compound is called empirical formula Empirical…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
- Which quantity has the greater mass? Group of answer choices 1 mol of C2H4 molecules 3.01 x 1023 C2H4 moleculesWhich of the following has the empirical formula CH2 ? A) C6H6 B) C2H6 C) C2H4OD) C6H12 E) H2CO3 Is this correct answer is C6H12? Please show me your workWrite the empirical formula for the hydrated KAl(SO4)2, based on your experimental results and answer to Question 2 (the answer was 65). Show all work including units. Hint: if the ratio of moles of H2O to moles of anhydrous KAl(SO4)2 was 4, then the empirical formula would be: KAl(SO4)2•4H2O. (question 2 and answer: Calculate the ratio of moles of H2O to moles of anhydrous KAl(SO4)2. Show all work including units. answer- 65)
- Consider a 101.3 g sample of the compound manganese(IV) perchlorate. (d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound? (e)how many moles of manganese perchlorate are in 101.3g? (f)How many moles of oxygen are in 101.3 g of manganese perchlorateAn unknown pure anhydrous chloride salt sample has been found to contain an average of 60.59% Cl⁻ (35.45 g/mol) after gravimetric analysis. Which of the following is the most probable identity of the sample? choices: a. It’s impossible to know. b. Sodium chloride (58.44 g/mol) c. Calcium chloride (110.98 g/mol) d. Magnesium chloride (95.21 g/mol) e. Potassium chloride (74.55 g/mol)how many moles of Mg(No3)2 are in 6.35x10^24 formula units of Mg(NO3)2? Please provide only typed answer solution no handwritten solution needed allowed
- A student, Ken, is given a mixture containing two carbonate compounds . The mixture includes MgCO3 and (NH4)2CO3 . The mixture is 64.74% CO3 is by mass. What is the mass percent of MgCO3 in the mixture? Please type answer note write by hend.2.The only empirical formula is: Group of answer choices A, C6H14 b, C2H4 c, C8H16 d, 1. C7H19Vitamin C contains the elements C, H and O. It is known to contain 40.9% C and 4.58% H by mass. The molar mass of vitamin C has been found to be about 180. Determine the empirical formula for vitamin C from this data: Group of answer choices C2H3O2 C3H4O3 C4H6O4 C6H8O6
- itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?True or false? The atom with the largest subscript in a formula is die atom with the largest percent by mass in the compound. If true, explain why with an example. If false, explain why with an example. In either case, provide mathematical supportConsider two samples of liquid: 1 mole of water (H2O) and 1 mole of ethanol (C2H50H). Answer each of the following questions. Note that none of these should require significant calculations. (a) sample contains more atoms? (b) Which sample contains more molecules? (c) Which sample has a larger mass?