A compound composed of 93.7% carbon and 6.3% hydrogen, by mass, has a molecular mass of 128 amu. What is the molecular formula?           (A) C9H4          (B) C9H5          (C) C5H4          (D) C10H8

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

A:

Q: Give the number of atoms of the specified element in the formula unit of the following compound and…

A: Leadhillite is a mineral of lead having the formula Pb4SO4(CO3)2(OH)2.

Q: Cyclopropane is an interesting hydrocarbon. Instead of havingthree carbons in a row, the three…

A: (a) The empirical formula can be defined as the formula written in the simplest ration of the…

Q: Cyclopropane is an interesting hydrocarbon. Instead of havingthree carbons in a row, the three…

A: a.

Q: What is the empirical formula of the compound with the molecular formula C18H36?

A: The empirical formula of any compound is the simplest ratio of atoms of the molecular formula of…

Q: Determine the molecular formula of a compound with the empirical formula CF, and molar mass of…

A:

Q: What is the mass of the molecular ion formed from compounds formed from having molecular formula:…

A: A molecular ion (a cation) is formed on removing a single electron from a molecule using a high…

Q: 2. If you have 1.00 grams of N22CO3, how many moles of Na2CO3 is that?

A: Given, mass of Na2 CO3 = 1.0 g Moles of Na2CO3  = ?  Firstly, find Molecular mass of Na2CO3

Q: Calculate the molecular mass (in amu) of each of thefollowing substances: (a) C6H6O, (b) H2SO4, (c)…

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

Q: Mass spec: M = 161 (100%), 163 (33%). Which of the following is %3D a possible molecular formula?…

A: In this mass spectrometry data, we are given two peaks whose intensity ratio is also given . So we…

Q: 2. Given the incomplete equation: 2 C +3Н, х Which compound is represented by X?

A: Two moles of carbon  Three moles of hydrogen  Compound formed = ?

Q: Consider the following organic substances: ethanol, propane,hexane, and propanol. (a) Which of these…

A: The functional group is the groups that are the characteristic moieties of the chemical compound…

Q: What is the % molecular mass of Iron in Fe2S3?

A: The percent mass of an element in a compound can be calculated by using the following formula:

Q: How many atoms of hydrogen are present in the compound represented as 6Al(H2PO4)3?

A: Here we are asked to calculate the number of hydrogen atoms in the 6Al(H2PO4)3

Q: 5) Given the molecular formula C6H1004, what is this compound's empirical formula? A) CH2O B) C2H50…

A: Since in the empirical formula, the ratio of atoms are the smallest whole numbers. And since in the…

Q: The semi-precious stone turquoise is a hydrate and with the chemical formula CuAl₆(PO₄)₄(OH)₈･4 H₂O.…

A: We are required to find out the mass percent of aluminium, oxygen and water in the…

Q: What 19K, 12 Mg, 13Al elements give with go The formulas of the compounds which are- well shown…

A: potasium is 1st A group member which is stable in +1 oxidation state Mg and Al are 2nd A and 3rd A…

Q: What do the peaks of the mass spec of C6H10 show?

A: The structure of the unknown molecules can be obtained by analyzing their spectroscopical results…

Q: What is the molecular weight of a sample of ferrous sulfide heptahydrate (FeS-7H20)? (Round all…

A: Molecular weight of a compound is the sum of its individual atoms' malar mass.

Q: Jsing the general formula for a 1.60), calculate the following: a. The number of hydrogen atoms E b.…

A: By using general formula of cyclo alkane to answer the following questions--

Q: How many atoms of hydrogen are found in 3.92 mol of hexane, C6H14?

A:

Q: How many grams does 3.5 × 10²⁵ molecules of H2SO4 weigh?

A:

Q: What is the molecular weight of compound BaCl₂2H₂O in unit amu (atomic mass unit) (U)

A: Molar mass is equal to sum of atomic mass of all elements

Q: 3.  What is the empirical formula for the compound with the following molecular formula?…

A: Given, The molecular formula of the compound = C6H18O3 Empirical formula of the compound = ?…

Q: 11. How many oxygen atoms are there in one formula unit of Ca2*?

A: 1. Formula unit is used to indicate lowest reduced ratio of ions in the compound  2. Molarity :…

Q: If an acrylic alkane hydrocarbon contains n carbons atoms, how many hydrogen atoms must it also…

A: Acyclic alkane are saturated branch or unbranch chain of carbon.

Q: The weed killer “Roundup” has a chemical formula of ( C3H8NO5P) What is its molecular mass?

A: The overall mass of one molecule of a substance is generally known as molecular mass (or molar…

Q: For erythrosine, a food colornig, C20H6I4Na2O5, how many hydrogen atoms would be present in the 86.0…

A: The relation between moles, mass and molar mass can be written as:

Q: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7. How many…

A: The chemical formula of the antiviral drug against COVID-19 molnupiravir is C13H19N3O7 Molar mass:…

Q: Determine the simplest formulas of the following compounds: (a) tetraethyl lead, the banned gasoline…

A: (a)  C - 29.71/12 = 2.476 H - 6.234/1 = 6.234 Pb - 64.07/207 = 0.3095 Devide all by least Number,…

Q: Calculate the number of atoms of hydrogen (H) in 323 cm3 of the colorless gas ethylene at 0 °C and…

A: 1 mole of C2H4 (ethylene) has 2 moles of carbon and 4 moles of hydrogen in it.1 mole of any…

Q: 2. What is the mass percent of iron in Fe(NO3)3 • 9H2O?

A:

Q: A compound has a molecular mass of 54 and and an empirical formula of C2H3. What is the molecular…

A: 23.  let the MF be (C2H3)n using atomic mass of C =12and of hydrogen H =1the calculated Molar mass…

Q: Gallium consists of 60. % 69Ga and 40. % 71Ga. Arsenic has only one naturally occurring isotope.…

A: Gallium has two isotopes 69Ga and 71Ga  with ratio of abundant 60 % and 40 % . Therefore intensity…

Q: How many atoms of O there in 24.7 grams of Al(C2H3O2)3?

A: Here structure of the compound is AlC2H3O23 Molar mass of the compound = 27+32×12+1×3+2×16gmol =…

Q: Calculate the exact masses of the ions C5H8O1 and C6H12 1, both of which have a nominal mass of 84.…

A: The organic compounds can be identified by various characterisation techniques. For example, NMR,…

Q: 17. Saccharin, an artificial sweetener that is 3000 times sweeter than sucrose, is composed of…

A: 17. Given information,    45.90% carbon, 2.73% hydrogen, 26.23% oxygen 7.65% nitrogen, and 17.49%…

Q: acomPound is comPosed of 54.5070 Oxygen, 4.58% H and 40.92% C by Mass a)if the conmPond has a…

A: Given,  Percentage of C = 40.92%  Percentage of H = 4.58%  And  Percentage of O = 54.50%  a).…

Q: How many atoms of hydrogen are found in 7.12 mol of pentane, C5H12?

A:

Q: 6. How many hydrogen atoms are there in 0.75 mol of C,H10O?

A:

Q: Carbon has two stable isotopes, 12C, abundance 98.892%, and 13C, abundance 1.108%. In the mass…

A: The molecular weight peak is called the Molecular Ion peak (M). Since this peak is a radical cation,…

Q: JESTION 8 In the certain hydrated salt MSO3-4H2O, the mass percentage of H2O is 44.71%. Identify the…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Given that you had 1 mol glucose (C 6H 12O 6), what would the mole ratio of glucose to oxygen be?

A: Balance Chemical equation means number of atoms or ions should be equal in both side (reactant and…

Q: Give the empirical formula for decaborane, whose molecularformula is B10H14.

A: The given molecular formula is B10H14 The empirical formula is the one which shows the simplest…

Q: How many H atoms are there in 40 molecules of C6H6?

A: Given that, 40 molecules of C6H6

Q: The indigo dye used to color blue jeans has the formula C6H1ON2O2. How many molecules of indigo are…

A: Given :- amount of C6H10N2O2 = 50.0 g  To calculate :- total number of C6H10N2O2 molecules

Q: 1.00 g of hydrated potassium carbonate, K2CO3•nH2O, is heated to 250 °C to give 0.836 g anhydrous…

A:

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.