Chlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically isolated molecular chlorophyll compounds are named as "Chlorophyll X" (where "X" is a variable denoting the actual molecular fragments which are represented by the labels R2, R3, R7, Rg, R17). Suppose one molecule of ChlorophyllX contains 5 oxygen atoms, and Chlorophyll X is 13.14 % oxygen by weight. Using only this information and the atomic mass of oxygen, determine the molecular mass of Chlorophyll X. The Chlorophyll X molecule contains one magnesium atom. What mass of magnesium is found in 7.11 g of Chlorophyll X compound?

Q: Consider a mixture of 10 billion O2 molecules and 10 billion H2 molecules. In what way is this…

A: The 1st mixture contains 10 billion or 109 O2 molecules and H2 molecules. The 2nd mixture has 109…

Q: In 1961, scientists agreed that the atomic mass unit (amu) would be defined as 1/ 12 the mass of an…

A: Since you have posted a question with multiple subparts, we will solve the first three subparts for…

Q: A mixture is made up of 4 molecules of CH3CH2  CH2OH and 5 formula units of Pb3(PO4)4 * 6H2O. Why…

A: A molecule is composed of two or more elements that are covalently bonded.It is the smallest…

Q: مان A₂B(g) +B(g) =A₂B₂ (g) 1 c = 16-4 2 Ag+ 2B (g) = A ₂ B₂ (g) kc = 28.2 Fc for the reactio 6 A (g)…

A: here we are required to find the equilibrium constant for the given reaction.

Q: Lithium has two stable isotopes, 6Li and 7Li. If a sample is composed of 48.0% of the lighter…

A: Average mass of an element is defined as the atomic mass of the element calculated by multiplying…

Q: An element X forms both a dichloride (XCl2) and a tetrachloride (XCl4). Treatment of 10.000gm of…

A:

Q: A 2.4839 g sample of a hydrate of Cu(NO3)2 was heated to drive off all of the water of hydration.…

A:

Q: What is the Empirical Formula for the compound comprised of elements Z=7 and Z=34? Give your answer…

A: The names and electronic configurations of the elements correspond to the atomic numbers 7 and 34…

Q: The bitter-tasting compound quinine is a component of tonic water and is used as a protection…

A:

Q: Ibuprofen, a potent headache remedy, has a molar mass of about 206 grams and has been determined to…

A: Empirical formula represents the simplest whole number ratio of atoms of elements present in the…

Q: Which of the following are ionic, and which are molecular?(a) PF5, (b) NaI, (c) SCl2, (d) Ca(NO3)2,…

A: Ionic and molecular (Covalent ) compounds :  If the compound formed by its respective cation and…

Q: Calculate the molar mass of Iron(III) chloride hexahydrate: FeCl3• 6H20. O 162.29 g/mol O 180.29…

A: Given  Molar mass of EDTA disodium salt dihydrate = 372.24 g/mole Molar Mass of FeCl3.6H2O Molar…

Q: A sample of C3H8C3H8 has 8.88×1024 H8.88×1024 H atoms. (1) How many carbon atoms does the sample…

A: We have given the sample that contain 8.88×1024 H atoms.   1 Mole of  C3H8≡  3 Mole of Carbon   and…

Q: Consider the following reaction of K2S2O3 for neutralizing chlorine in industrial bleaching. K2S2O3…

A:

Q: How many atoms in total are there in one molecule of Mg(NO3)2?

A: In a molecular formula, symbols of all the constituting atoms are shown along with their numbers in…

Q: For each of the following samples of ionic substances, calculate the number of moles and mass of the…

A: 4.25 g of ammonium iodide 6.31 moles of ammonium sulfide. 9.71 g of barium phosphide 7.63 moles of…

Q: chemical formula

A:

Q: A drop of water, H2O, has a volume of approximately 0.050 mL. Assuming that the density of water is…

A: Given volume of 1 drop = 0.05 ml density of 1 drop = 1 g/ml number of drops = 3

Q: A certain organic compound has the formula C9H11O2.  A sample of this compound weighs 85.88 grams.…

A: The formula of the given organic compound is C9H11O2.  Mass of the compound=85.88 grams. The molar…

Q: how many ions are there in 4.50g of MgBr2? (Mg = 24.305 g/mol, Br = 79.904 g/mol, assume NA = 6.022…

A: In this question we need to find the number of ions present in 4.50 g of MgBr2 Atomic mass of Mg =…

Q: Calculate the molecular (formula) mass of each compound:(a) iron(II) acetate tetrahydrate; (b)…

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Q: A) Suppose one molecule of Chlorophyll X contains 5 oxygen atoms. Chlorophyll X is 8.95% oxygen by…

A: Molecular mass of Chlorophyll X can be found out by using the mass percentage of Oxygen and number…

Q: How many oxygen atoms are there in a single formula unit of Al2(SO4)3?

A: 1 molecule of given molecule is made up of 2 Al3+ and 3 SO42- units.

Q: 6.90 x 1024 formula units of sodium nitrite, NaNO₂ Express your answer with the appropriate units.…

A: Multiple  questions

Q: The elements nickel (Ni) and boron (B) form two binary compounds with the following compositions:…

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Q: Calculate the number of oxygen atoms in 15.2 g of trinitrotoluene, C7H5(NO2)3(s).

A: The solution is given below -

Q: Yzed 3.725 g of an unknown mixture of NaCl, SiO2, and CaCO3. You isolated 1.108 g NaCl, 0.848 g…

A: Given information- total mass of mixture = 3.725 g  mass of NaCl = 1.108 g  mass of SiO2   = 0.848 g…

Q: If an air conditioning unit is charged with 4.9 x 1023 molecules of R-113 (C5Cl3F6), what mass of…

A: Given : Number of molecules of C5Cl3F6 = 4.9 X 1023

Q: A sample of a certain organic acid has a mass of 5.000 g.  Elemental analysis of this compound found…

A: Total mass of the sample of organic acid = 5 g Amount of C = 1.334 g Amount of O = 3.554 g Amount of…

Q: How many oxygen atoms are there in a single formula unit of Al2(SO4)3?

A: The given molecule is Al2(SO4)3.

Q: Aluminum oxide (Al2O3) occurs in nature as a mineral called corundum, which is noted for its…

A: The density is stated as mass per unit volume. Mathematically, it is represented as follow: d = m/V…

Q: What is the molecular formula of a compound if the empirical formula is C,H, and the approximate…

A: Molecular formula: In a molecular formula we describe the number of atoms of all the elements…

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z) and decompose them to…

A: The problem belongs to the simplest ratio of masses.

Q: Unknown element, Element X, exists in nature as two isotopes: ^{351}351 X has a mass of 350.9196 u…

A: Average atomic mass=∑i=1n (mass of ith isotope)(%abundance of ith isotope)100 where 'i'…

Q: There are two gas compounds that are made out of element  A and B. This is the mass percentage of…

A: Given: Mass percentage: Compound 1: 30.43% A, 69.57% B Compound 2: 63.64% A, 36.36% B

Q: Vitamin A has the molecular formula C20H300. How many carbon atoms are in 6.02 x 1023 molecules vit…

A: As molecular formula of vitamin A is C20H30O . Thus in one vitamin A molecule  has 20 carbon atoms .…

Q: An ionic compound forms when calcium (Z= 20) reacts with iodine (Z = 53). If a sample of the…

A: The compounds which are formed by ions is known as ionic compounds.

Q: A binary compound between an unknown element E and hy- drogen contains 91.27% E and 8.73% H by mass.…

A: using the molecular formula is E3H8 Given moles of E presents in compound is 3

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.