How many atoms of carbon are combined with 6.89 moles of hydrogen atoms in a sample of the compound ethane, C2H6?

Q: a. How many moles of disulfur decafluoride, S₂F10, are present in 2.98 grams of this compound? moles…

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Q: a. How many grams of barium carbonate, BaCO3, are present in 1.73 moles of this compound? grams b.…

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Q: atoms

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Q: Which has the smaller mass, 1 mole of He atoms or 4 moles of H atoms?

A: Molar mass of He = 4.003 g/molMolar mass of H = 1.007 g/mol

Q: How many moles of chlorine are there in 0.21 moles of CCl3F?

A: Given: The moles of CCl3F = 0.21 mol One mole of CCl3F has 3 moles of Cl atoms.

Q: Our bodies synthesize protein from amino acids. One of these amino acids is glycine, which has the…

A: First calculate the molecular mass of the compound from given molecular formula.

Q: Which of the following pairs of compounds have the same empirical formula? a. acetylene, C2H2, and…

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Q: How many moles of hydrogen are in 3.06 × 10⁻³ g of glycine C₂H₅NO₂?

A: Introduction: Mole is the fundamental (SI) unit that is used to measure the amount of substance. By…

Q: A sample is found to contain 0.650 mole of a chemical substance. a. How many atoms are present if…

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Q: An aspirin tablet contains 325.0 mg of aspirin, which has the molecular formula, C9H8O4. How many…

A: Given:Mass of aspirin = 325 mg = 0.325 g.

Q: If there are 4.10 moles of H,4.10 moles of H, how many moles of each of the compounds are present?…

A: If a compound contains a fix number of moles of any element present in it then we can calculate the…

Q: An average cup of coffee contains about 125 mg of caffeine, CRH10N4O2. How many moles of caffeine…

A: Moles of the caffiene can be determined by suing the formula given below as: Moles of Caffeine=Given…

Q: How many moles of each element are in one mole of Be(OH)2?

A: Given, One mole Be(OH)2  Firstly check all the elements present in in Be(OH)2 If it is given that…

Q: How many moles of tetracycline (C₂₂H₂₄N₂O₈) are in 92.1 grams?

A: Before going to find out moles of tetracycline, We first find out molecular weight of C22H24N2O8 ,…

Q: How many H atoms are in 19.9 g of isopropanol (rubbing alcohol), C3H3O?

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Q: Use the balnced equation: 4Al + 3O2 ⇒ 2Al2O3 If I want to produce 16 moles of Al2O3 , how many…

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Q: Which has more atoms, 10.0 mol of C or 10.0 mol of Ca?How many atoms does each have?

A: According to Avogadro: 1 mole of a substance contains=6.022×1023molecule/atom/ions

Q: Which one of the following molecular formulas is also an empirical formula?

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Q: Caffeine has the formula C8H10N4O2 . If an average cup of coffee contains approximately 125 mg of…

A: In the international system of units the mole (symbol: mol) is the quantity unit for measurement…

Q: Consider the mixture of propane, c3h8 and o2 a. What is the percent, by mass, of carbon in propane?

A: The molecular formula of propane is = C3H8 The mass percent of the carbon in propane is =?

Q: How many moles of Al(C2H3O2)3 contain 19 moles of O? Determine the % composition by mass of the…

A: % composition = (molar mass of element/total molar mass of compound)*100

Q: How many carbon atoms are there in 0.100lb of glucose (C6H12O6)?  How many grams of nitrogen are…

A: 1 mole of substance is equal to Avagadro 's number of atoms.  Avagadro's no=6.02×1023 atoms no of…

Q: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg. Suppose an individual…

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Q: A sample of 7.2 moles of the ionic compound, potassium dichromate, K2Cr2O7, is present. How many K+…

A: Applying concept of avogadro number. 1 mole = 6.022× 1023 atom/ molecules/ ions

Q: What is the percent by mass of carbon

A: Percent by mass = (mass of C/total mass of compound) × 100%

Q: A diamond contains 5.0x1021 atoms of carbon. What amount(moles) of carbon and what mass(grams) of…

A: No. of atoms of 'C' = 5.0×1021 atoms Calculation of no. of mol of 'C': n=No. of atoms6.022×1023…

Q: How many moles are there in 2.00x 1019 molecules of CCl4?

A: Given: Number of molecules of CCl4 = 2.00×1019 molecules To find: The number of moles of CCl4

Q: How many moles of carbon atoms are there in 0.21 mole of C2H6?

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Q: One mole of hydrogen peroxide, H2O2, would consist of how many molecules?

A: Given : Moles of H2O2 = 1 mol

Q: In the molecule C6H12O6 are there will be 12 moles of hydrogen per mole of glucose?

A: The molecular formula of glucose = C6H12O6 It is obvious as seems from the molecular…

Q: Converting Mass to Moles using Molar Mass I  A sample of chloroethane, C2H5Cl, mass of 18.5 g. What…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: How many moles is 2.45e24 molecules of Oswegium pantheride?

A: 1 mol of any substance contains 6.023 × 1023 number of molecules

Q: How many molecules of carbon monoxide, CO, comprise 2.34 moles?

A: Given : Moles of CO = 2.34 mol.

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 NH3 molecules comprise one mole of NH3? What is the mass in grams of one mole of NH3? What…

A: In one moles of NH3 is equal to Avagadro number of Molecules of NH3  That means,  1mol of NH3 =…

Q: How many moles of hydrogen would be found in 1.5 moles of (NH4)2SO4 ?

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Q: How many grams of Fe2O3 are there in 0.500 mole of Fe2O3?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: A.How many molecules of nitrogen trifluoride are present in 2.13 moles of this compound?   B.How…

A: To convert molecules to mole divide by 6.02×10^23 and to convert moles to molecule multiply by…

Q: How many atoms are in 3.40 moles of sugar (C12H22O11)?

A: As we know that,  1 molecule of sugar have 45 atoms (=12+22+11) 1 mole of sugar = 6.022 × 1023…

Q: An organic compound has a molar mass of 171.1 g/mol and contains 11.10 % hydrogen atoms by mass. How…

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Q: Coffee has the following formula C8H13N a) What is the molar mass of Coffee? b)How many moles of…

A: Molar mass is the sum of the atomic masses of each atom present in a molecule. atomic mass of C = 12…

Q: The molecular formula of aspartame is C14H18N2O5 a. What is the molar mass of aspartame? b. How many…

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Q: Thyroxine is a hormone secreted by the thyroid gland and has a formula of C15H11NO4I4. How many…

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Q: Ibuprofen, the anti inflamatory ingredient in Advil has the formula C13H18O2 A) How many molecules…

A: We have to predict the molecules  , number of H atoms, mole of ibuprofen, mass of ibuprofen.

Q: Quinine (C20H24N2O2 ) is an anti-malaria drug. If a person had 0.0654 moles of quinine, how many…

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Q: The number of moles of H in three moles of copper(II) sulfate pentahydrate, CuSO45H2O, is a.  2   b.…

A: The given compound is copper(II) sulfate pentahydrate,

Q: Give an example of another molecular formula (C10H8), that could have the empirical formula you…

A: We need to find an another compound that is having empirical formula C5H4.

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.