We did surgery on a grape and found a sugar compound with the formula C7H11O5 What is the percent composition for each element in this compound?

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: A compound contains only carbon and hydrogen and has aformula mass of 28.06 amu. What is its…

A: Given data: Molar mass of the compound = 28.06 amu

Q: 1. a) Determine the empirical formula of a compound with the following percent composition: 55.80 %…

A: empirical formula  of a compound is simplest positive number of atoms in compound

Q: Determine the number of atoms of each element in the empirical formula of a compound with the…

A: The molar mass of carbon is 12.01 g/mol and the mass of carbon is 54.95 g. The moles of carbon is…

Q: How many atoms are contained in 0.98 moles of iron (Fe)?

A:

Q: Which of the following has more atoms: 0.302 g ofhydrogen atoms or 14.7 g of chromium atoms?

A: If the number of moles of a substance are more, the number of atoms are also more. Number of moles…

Q: Consider the compound zinc acetate ZnC2H3O2 1. How many total atoms are in this compound?  2.…

A: Zn[C2H3O2]2 has 1 Zn atom, 4 carbon atoms, 6 hydrogen atoms and 4 oxygen atoms.Total atoms in this…

Q: Propane, C3H8, is a hydrocarbon gas. It is abundant in Canada and is a common fuel used for heating…

A: Propane is an organic compound which is made up of hydrogen and carbon atoms. The molecular formula…

Q: Aluminum chloride is formed by reacting 15.32 g aluminum with 60.66 g chlorine. What is the percent…

A: Given: Mass of aluminium in the compound = 15.32 g. And mass of chlorine in the compound = 60.66 g.…

Q: What is the percent mass of iron in the compound Fe3O4

A:

Q: How many formula units of H3PO4 are in 0.45 moles of H3PO4?

A: We have to multiply the number of moles by Avogadro's number.

Q: What is the percent composition of each atom in nitrogen trioxide?

A: Given, Nitrogen trioxide ,NO3 contains Nitrogen and Oxygen  To Calculate % by mass of Nitrogen and…

Q: For the formula  K3N  What is the percent Nitrogen in the compound

A: Given, compound K3N Molar mass of K = 39 g/mol Molar mass of N = 14 g/mol

Q: Ibuprofen has a percent composition of 75.7 % Carbon, 8.80% hydrogen and 15.5% oxygen. What is the…

A:

Q: What is the percent composition of caffeine (C8H10N4O2)?

A: Given :- chemical formula of caffeine = C8H10N4O2  To calculate :- percent composition of each…

Q: Consider the following compound: Sr3(PO4)2 *4H2O   -Calculate the theoretical percent strontium by…

A: The mass percent of strontium in Sr3(PO4)2 * 4H2O is calculated as,

Q: In the compound (NH4)S2, what is the percent composition of hydrogen

A:

Q: What is the percent  Carbon in the formula  Ethanol? ( C2H5OH )

A: Given compound is Ethanol  Ethanol has chemical formula C2H5OH Where C = Carbon , O = Oxygen , H =…

Q: What is the percent (by mass) of oxygen in citric acid, C6H8O7.

A:

Q: A compound whose molar mass is 92.02 g/mol. was analyzed and found to contain only oxygen and…

A: Given :-  Percent composition of oxygen = 69.55%  Molar mass of compound = 92.02 g/mol  To determine…

Q: Which of the following can be considered an empirical formula? Explain how you know. CH4 C2H8 C2H6…

A:

Q: A compound that contains only copper and chlorine contains 2.363 g copper and 2.637 g chlorine. What…

A:

Q: Can you determine the molecular formula for a compound from its percent composition? Explain in…

A:

Q: Which is the correct formula for the compound whose percent composition is shown? к, 38.62 0, 47.51…

A: Sol.

Q: many sugar molecules are in the beaker?

A: The size of single sugar molecule is 1.5 nm approx. The length of 1 mile is equal to 1.609×1012 nm.…

Q: How many atoms are in 3.67x10^-5 mol of (NH4)2SO4?

A: Introduction:

Q: A compound has the formula ZnGa2O4. What is the percent composition?

A: In this question we want to determine the value of percent composition of Zn, Ga and O for these…

Q: 4) Tin(II) fluoride is used in toothpaste to prevent dental caries. What is the percent by mass of…

A: Answer- Stannous Fluoride, or Tn(II)  Fluoride, is a compound commonly used in toothpastes for the…

Q: How many moles are in a sample of Saccharin with a mass of 35.31 grams? Saccharin is an artificial…

A: We know that, number of moles can be expressed as,

Q: The anticaking agent added to table salt is calcium metasilicate (CaSiO3). This compound can absorb…

A:

Q: How many atoms are in 73.3 g of sodium sulfate (Na2SO4) ?  It says there are seven atoms in a…

A: Applying concept of mole and avogadro concept.

Q: Monosodium glutamate ( NaC5H8NO4) is used extensively as a flavor enhancer. What is its percent…

A: The mass composition of the element present in the compound can be described as the ratio of the…

Q: When added to toothpaste, stannous fluoride, SnF2, has proven to be helpful in the prevention of…

A:

Q: Find the percent composition of the antibiotic

A: Percentage composition:   Relative mass of each constituent element   % of element = n x at.wt of…

Q: How many moles of C atoms are in 1 mol of sucrose (C12H22O11)? (1 mol is an exact number.)

A:

Q: How many atoms are in 0.78 mol Si?

A: Moles of silicon = 0.78  Atoms of silicon = ?

Q: Regular treatment with low dose aspirin is used to help prevent cardiovascular disease. How many…

A: The molecular formula of aspirin is C₉H₈O₄. The number of molecules present in 240 mg of aspirin has…

Q: How many moles of oxygen atoms are in one mole of Na2SO4

A:

Q: An unknown compound was found to have a percent composition as follows: 47.0% potassium, 14.5%…

A: Percentage of potassium= 47.0% Percentage of Carbon = 14.5%  Percentage of oxygen = 38.5%  Molar…

Q: 2. When a 30.98-g sample of phosphorus reacts with oxygen, a 71.00-g sample of phosphorus oxide is…

A: Given: The mass of P=30.98 g Mass of compound, (Phosphorous oxide)=71 g. Mass of oxygen=(71-30.98)…

Q: Using the models of the molecules " (black=C, white=H, yellow=S, green=Cl), determine each of the…

A: A question based on ball and stick model, which is to be accomplished.

Q: How many carbon atoms are in 259.42 grams of pentane?

A: Avogadro's defines 1 mol as unit, which contains 6.022×1023 number of particles. It is also defined…

Q: Determine the percent ammonia, NH3, in Co(NH3)6Cl3, to three significant figures.

A: Calculation of molar mass of the given compound: Molar…

Q: What is the percent composition by mass (to one decimal place) of copper in 80.0 kg of copper (2)…

A: Molar mass of Copper(II) pho sphate = 380.58 g/mol This implies; 380.58 g of Cu3(PO4)2 contains…

Q: Dichlorine heptoxide (Cl2O7) is a highly reactive compound used in some organic synthesis reactions.…

A:

Q: Anabolic steroids are performance enhancement drugs whose use has been banned from most major…

A: Calculate the molar mass of fluoxymesterone (C20H29FO3),      20(12.01) + 29(1.01) + 1 (19.00) + 3…

Q: Aspirin is a compound with the molecular formula C9H8O4. What is its percent composition?

A: The percentage composition of C in aspirin can be calculated as: Percent composition of C = Number…

Q: Calculate the molecular formula for caffeine, a compound with a molar mass of 5g and the following…

A: Let us assume the total mass we are having to be 100g.  The molar mass of C = 12.0107 The molar mass…

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.