A particular vitamin's chemical formula has one cobalt atom. What is the molar mass of the vitamin if it contains 4.34% cobalt?

Q: The active ingredient in aspirin is acetylsalicylic acid, which has the chemical formula . An…

A: The chemical formula of acetylsalicylic acid is C9H8O4. Given : Mass of acetylsalicylic acid in each…

Q: If the mass of Mg is 0.19g and the product mass is 0.74g. What is the moles of Mg in the product

A: In this question, we have to calculate the number of moles of Mg produced. 1 mole of any substance…

Q: If 0. 274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A: Given- Moles of substance =0.274 moles  Weight of substance= 62.5 g

Q: A healthly person breathes out approximately 0.020 L of carbon dioxide in one breath. How many moles…

A: The number of moles is a fundamental physical quantity that is denoted by the amount of a substance…

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: 1. Cyanogen gas, C2N2, has been found in the gases of outer space. It can react with fluorine to…

A: We have to predict the moles of fluorine needed.

Q: Bauxite, the principal ore used in the production of aluminum, has a molecular formula of…

A: Bauxite has a chemical formula of Al2O3·2H2O

Q: For the chemical reaction,   CaI2+2AgNO3⟶2AgI+Ca(NO3)2CaI2+2AgNO3⟶2AgI+Ca(NO3)2   what mass of…

A: CaI2       +     2 AgNO3     →  2 AgI +Ca(NO3)2 Double displacement ReactionCalculate the…

Q: Ibuprofen, C13H18O2, is a covalent compound and the active ingredient in common…

A: Given  Mass of Ibuprofen = 100 gram  Number of mole    = ?

Q: Hydroxychioroquine (CigHasCIN;O) is a medication used to prevent and treat malaria in areas where…

A:

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: A sample of sodium carbonate, Na2CO3, weighs  21.0 g.  Calculate the following quantities.   (a)…

A:

Q: What is the molar mass of the substance with the formula FeC2O4?

A: Molar mass can be calculated as follows

Q: A compound has a molar mass of 34.02 g. What is its chemical formula if hydrogen and oxygen are…

A: The Chemical Formula of the Compound is given as -

Q: The principal component of many kidney stones is cal- cium oxalate, CaC2O4. A kidney stone recovered…

A: Answer:- This question is answered by using the simple concept of calculation moles using the…

Q: Consider a sample of carbon tetrafluoride that contains 1.09 × 10²⁴ atoms of fluorine. 1.) Using…

A: In international system of unit, there are seven basic units. Out of those seven unit Mole is one of…

Q: the molar mass of potassium hydroxide, KOH?

A: The molar mass of potassium hydroxide KOH

Q: How many moles are contained in each number of grams of table sugar (C 12H 22O 11, molar mass 342.3…

A: Given data molar mass of sugar ( C12H22O11 ) = 342.3 g/mole   mass of sugar part(a) 0.500 g…

Q: What is the difference between the molar mass and empirical formula mass of a compound? When are…

A: For the given molecule, the total sum of the atomic masses of atoms that are present in the…

Q: Aspartame is an artificial sweetener that is 160 times sweeter than sucrose (table sugar) when…

A: NOTE : Since you have posted multiple sub-parts,we'll solve only first three sub-parts for you. To…

Q: The following may be needed: 1 mol=6.022x1023. 1) Calculate the molecular mass and molar mass of…

A: 1.

Q: The experimental molar mass of a compound with empirical formula of N2H4CO is 120.0 g/mol. What is…

A: It is given that the molar mass of the compound which has an empirical formula of N2H4CO is 120…

Q: Alex has a big black tattoo of a teddy bear on their back. Iron (II, III) oxide was used as the…

A:

Q: You are investigating an organic compound that has percent composition of 70.02% carbon, 3.36%…

A: Percentage Composition of compound Carbon = 70.02% Hydrogen = 3.36% Oxygen = 26.64% Empirical…

Q: Particular thermos can hold 473.2 ML of warm beverage. If the Thermo is filled with hot cocoa, which…

A: Given that,Concentration of the sugar = 0.23 M = 0.23 mol/L Capacity of the solution in thermos =…

Q: Complete the table below for calculating the molar mass of the compound dinitrogen monoxide.…

A:

Q: Hydrogen peroxide H2O2 is commonly used to clean bacteria in scrapes and cuts. It can be used as a…

A: 1 mol of a substance has   6.022×1023 (NA)   atoms/ molecules/ formula units of the substance.Number…

Q: The empirical formula of styrene is CH; its molar mass is 130.2 g/mol. What is the molecular formula…

A:

Q: An oxide of nitrogen contains 63.1% oxygen and has a molar mass of 76.0 g/mol. A. What is the…

A: The oxide contain % of O = 63.1 % % of N = 100-63.1 = 36.9 %

Q: How many moles of magnesium are present in 1.23 mol of Al3Mg3B56 ? Round to two decimal places.

A:

Q: What is the mass in grams of 3.60 mol of lactic acid (C3H6O3), the compound responsible for the…

A:

Q: Consider the following balanced chemical reaction: 2C3H6O + 9O2 → 6CO2 + 8H2O If 89.0 grams of…

A: To find mass of water.

Q: The molar mass of CCl4 is 153.81 g/mol. How many grams of CCl4 are needed to have 7.3 mol?

A: Given: Moles of CCl4=7.3 mol Molar Mass of CCl4=153.81 g/mol   To find: Mass of CCl4

Q: How many moles of aspirin are in the tablet?

A: Number of moles = mass/molar mass  1 mol = 6.022 × 1023 molecules

Q: 5.) Ethylene glycol is a coolant widely used in automobiles. If its molecular formula is C2H6O2, how…

A: Number of moles is defined as the amount of the substance divided by the molecular weight of the…

Q: Liv is trying to decide which molecules to use for her chemistry reaction. The first thing she has…

A: Molar mass of C = 12.0107 g/mol Molar mass of H = 1.00784 g/mol Molar mass of N = 15.0067 g/mol…

Q: Ethanol has a molecular formula of CH3CH2OH. 1.) What is the molar mass of ethanol? 2.) What is the…

A: 1) molar mass = sum of atomic mass of each atom present  in the molecule  Since in ethanol we have 2…

Q: How many oxygen atoms are on the right-hand side of the following chemical equation? 4FES2(s) +1102…

A: Number of Oxygen atoms means number of O atoms present.

Q: Vitamin B12 , cyanocobalamin, is essential for human nutrition. It is concentrated in animal tissue…

A: The molar mass of cyanocobalamin is calculated using cobalt’s molar mass in step two.

Q: given the molar mass of Na2SO4.nH20 is 322.1 g/mol, calculate the value of n

A:

Q: Consider a sample containing 0.750 mol of a substance. How many atoms are in the sample if the…

A: The number of lead atoms in 0.750 mol of a sample is calculated as, The number of platinum atoms in…

Q: If a test tube has 2 moles of a blue liquid and a different test tube has 2 moles of a red solid…

A: Given: Moles of blue liquid in test tube 1 = 2 mol. And moles of red solid in test tube 2 = 2 mol.

Q: What is the molecular formula for a compound that has a molar mass of 92.0 g/mol and an empirical…

A:

Q: 1. A chemist made a new compound and had its elemental composition analyzed. The results of this…

A: Given: Mass of  C = 1.388 g Mass of H = 0.345 g  Mass of O = 1.850 g  To find : a) Percent…

Q: many grams of water

A: Mass of C3H6O = 89.0 g Molar mass(MM) of C3H6O = 58.08 g Moles of C3H6O = mass/MM       = 89.0/58.08…

Q: The empirical formula of an insecticide is found to be CHCl, and its molar mass is 290.8 g/mol. How…

A: empirical formula is given and calculate empirical weight  Now n=molecular weight ÷empirical weight…

Q: When a sample of cyclohexene is burned in oxygen, 4.822 g of CO2 and 1.650 g of H2O are obtained.…

A: The term combustion reactions refer to those type of chemical reaction in which a hydrocarbon reacts…

Q: Which of the following has the largest mass in grams? O 4 moles of water 5 moles of hydrogen O 3…

A: Option 4th will be correct.

Q: What is the formula to calculate the molar mass of H3COH with the units g/mol?

A: Molar mass is numerically equal to the molecular weight since molecular weight is sum of all…

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.