Problem In mammals, lactose (milk sugar) is metabolized to glucose (C6H12O6), the key nutrient for generating chemical potential energy. What is the mass percent of each element in glucose?Plan We know the relative amounts (mol) of the elements from the formula(6 C, 12 H, 6 O), and we have to find the mass % of each element. We multiply the amount of each by its molar mass to find its mass. Dividing each mass by the mass of 1 mol of glucose gives the mass fraction of each element, and multiplying by 100 gives each mass %. The calculation steps for any element (X) are shown in the road map.

Q: Given that the molar mass of tartaric acid is 1.50 x 102 g/mol, what is the molecular formula of the…

A: Given that, Molar mass of tartaric acid = 1.50 × 102 g mol-1       = 150 g mol-1 Molecular formula =…

Q: This is the chemical formula for lead(II) nitrate: Pb(NO3)2 Calculate the mass percent of nitrogen…

A:

Q: What is the molecular formula of a compound with the empirical formula NBH4 and a formula mass of…

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Q: How many grams of barium cyanide, Ba(CN)2, are present in 3.56 moles of this compound?.

A: barium cyanide = Ba(CN)2 moles of barium cyanide = 3.56  Moles = given mass / molar mass

Q: If a compound is 36.0% calcium and 64.0% chlorine by mass, what is the emperical foumla?

A:

Q: Determine the molecular or formula mass of each of the following compounds. (For this exercise,…

A: When the masses of all the atoms present in a molecule are added, the value obtained is referred to…

Q: You have a compound containing 15.32 % silicon, 49.76% Zr (Z = 40), and 34.91 % oxygen.  What is the…

A: Given , Silicon = 15.32 % Zirconium = 49.76 % Oxygen = 34.91 %

Q: What is the molecular formula of glycerol, C3H8O3 (39.13% C, 8.76% H, and 52.12 % O), if the molar…

A: Given, => mass of C = 39.13 % = 39.13 g => mass of H = 8.76 % = 8.76 g => mass of O = 52.12…

Q: What is the formula mass of Al2(SO4)3?

A: The formula mass of a compound depends on its one formula unit. The atomic mass of all the…

Q: Hydroxylamine, NH2OH, is a reducing agent found in some film developing solutions. How many hydrogen…

A:

Q: Calculate the number of atoms of glucose in 2.116 x 10-3 grams of glucose, C6H12O6. Hint: molar…

A: Given that, Grams of glucose in 2.116 x 10-3 g The molar mass of glucose (C6H12O6) as follows --- =…

Q: How many atoms of Oxygen (O) are in 3.25 g K2Cr2O7 (MM = 294.19 g/mol)?

A: Molecular weight of one molecule of K2CrO7 = 294.29g One molecule of K2CrO7 contains 7 atoms of…

Q: thetr many years chloroform (CHCI3) was used as an inhalation anesthetic in spite of the fact the t…

A:

Q: Gallium (Ga) is a key element in solar panels, calculators, and other lightsensitive electronic…

A: 1 mole of a substance will be equal to Avogadro number of particles( the particles include…

Q: 2. What is the empirical formula for the compound with 40.27% K, 26.78% Cr, and 32.96% O?

A: Given: The unknown compound has the following elements: The mass % of K, =  40.27 %. The mass % of…

Q: a) How many calcium ions are there in 2.81 mol Ca3N2? b) How many nitride ions are there in 2.81…

A: A. We have to calculate the number of Ca+2 ions. B. We have to calculate the number of N3- ions.

Q: If you have 2.75 moles hydrogen atoms, how many moles of (NH4)2CO3 do you have?

A: Reference: Self Introduction: Mole concept: A mole is defined as the quantity of a substance that…

Q: How many mols are in 97.96 g of propanol (C3H8O)? Enter the value with enough significant digits, do…

A: Moles of any substance = (mass given)/(molar mass)    -------(1) Given:   Mass of propanol = 97.96 g…

Q: 3) How many atoms are contained in 0.98 moles of iron (Fe)? 4) How many moles of cesium are in 66.45…

A: For question 3, we have to find the number of atoms in 0.98 moles of iron. For question 4, we have…

Q: How many atoms of oxygen are in 2.7 moles of Mg(NO3)2 ?

A: Since, Moles is the ratio of mass to the molar mass of that atom or molecules. Also, Number of atoms…

Q: QUESTION 8 (a) In the certain hydrated salt MSO3-4H20, the mass percentage of H2O is 44.71%.…

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Q: Calculate the mass percent of each element in bismuth subsalicylte. It's simplest formula is…

A: The formula of the compound given is C7H5BiO4. Assuming 1 mole of compound. Molar mass of C7H5BiO4 =…

Q: 3 Serotonin (C10H12N₂O) is a neurotransmitter that when balanced is responsible for there in 12.40 g…

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Q: Question 1: Dimethylnitrosamine, (CH3)2N₂O, is a carcinogenic (cancer-causing) substance that may be…

A: As per our guidelines, we are supposed to answer only one question with three subparts. Kindly,…

Q: How many cobalt atoms are in 345 g of cobalt? Calculate the molar mass of carbon tetrachloride,…

A: Since you have posted a  question with sub-parts , we are entitled to answer the first three…

Q: What would the empirical formula be for a compound that contains only nitrogen and oxygen and is…

A: Find the solution below

Q: Avogadro’s Number 1. 2.57 x 1011 atoms of silver equal how many moles of silver?

A: Given data: The number of atoms of silver is 2.57×1011. To calculate: The moles of silver.

Q: How many atoms of silicon are in 0.75 mol of disilicon hexahydride, Si2H6?

A: Moles of Si2H6 = 0.75 mol No. of atoms of Si in Si2H6 = ?

Q: 3 Serotonin (C10H12N₂O) is a neurotransmitter that when balanced is responsible for happiness,…

A:

Q: A compound is known to consist solely of carbon, hydrogen, and chlorine. Through elemental analysis,…

A: Given: Percentage of C = 24.78% Percentage of H = 2.02% Percentage of Cl = 73.20% Molecular formula…

Q: 1) Calculate the number of H atoms in 0.350 mol of glucose, C6H12O6 2) What is the mass in grams of…

A: Given data :  1) moles of glucose = 0.350 mol  2) mol  of glucose = 1.000 mol  molar mass of glucose…

Q: How many oxygen atoms are in 32 molecules of dinitrogen tetroxide, N₂O₄?

A: The molecular formula of the compound given is N2O4.

Q: How many chloride atoms are there in 8.4 mol of PCl5, phosphorus pentachloride?

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Q: What is the mass of 5.34 x 10^23 molecules of sodium hydrogen carbonate. So far I have Na:22.99 +…

A: Given,the molecules of sodium hydrogen carbonate = 5.34 x 1023 molecules.Atomic mass of Na = 22.99…

Q: What is the molar mass of aluminum chlorate, Al(Cl03)3? A)456.78 g/mol B)325.33 g/mol C)331.29 g/mol…

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Q: Batrachotoxin, C31H42N2O6, an active component of South American arrow poison, is so toxic that 0.05…

A: Given data : Mass of Batrachotoxin(C31H42N2O6) = 0.05 mg = 0.5 x 10-4 g Molar mass of Batrachotoxin…

Q: How many atoms of Carbon are in 0.51 mol of procaine, C13H20N2O2, a pain killer used by dentist?

A: Given Data:

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.