Determine the mass of the sample below. a) 9.11 x 1023 molecules of C15H21N3O15

Q: Determine thev molar masses of these compounds  d)C2H5OH e) HC2H3O2 F) Fe3O4

A: Note : As per our guidelines we are supposed to answer first 3 parts. Please repost other parts as…

Q: 13. How many oxygen atoms are in 225 g of O2? a. 4.23 x 1024 b. 6.84 x 1024 c. 8.47 x 1024 d. 1.69 x…

A: Number of Atoms of Oxygen can be calculated as -

Q: Calculate the number of (a)nitrogen molecules (N2 molecules) (b)nitrogen atoms(N atoms) in 0.111g of…

A: Since 0.111 g of nitrogen gas will have moles = mass/molar mass molar mass of N2 = 28 g/mol Hence…

Q: What are three errors that could cause one of your mass percentages to be too high?

A: Mass percent or weight percent of a solution is the mass of the solute by the mass of the solution…

Q: How many moles of carbon dioxide are there in 52.06 g of carbon dioxide?   Select one or more: a.…

A: The number of moles indicates the amount of a particular atom in the compound containing that atom.…

Q: How many atoms are in .452 moles of carbon? 1.33 x 1024 atoms 2.72 x1023 atoms 3.27 x 1024 atoms…

A: We are having 0.452 moles of carbon , we have to calculate the number of atoms in this much moles of…

Q: Determine the mass in grams of 6.58 ✕ 1024 molecules of NH3

A: Since we know that  1.0 mol of any substance = 6.022 × 1023 molecules . To solve this problem first…

Q: What is the mass of 0.10 mole of methane (CH,)? A 0.10 gram 1.00 gram 1.60 grams D 16.00 grams

A:

Q: Number of atoms of C in 14 moles of CH10 are: O 337.23x10^23 O 24.09x10^23 O 84.31x10^23 O…

A:

Q: Calculate the mass (in g) of each sample.  5.73x10^20 SO3 molecules

A: Given:Number of molecules = 5.73x1020 molecules.Molar mass of SO3 = 80 g/mol.

Q: 2163 T(K) 1557 Mg₂SiO4 20 40 60 Mole % SiO₂ 80 1873 1543 SIO₂

A:

Q: A sample of a compound with the molecular formula C20H24N2O2 contains 2.75 x 1024 nitrogen atoms.…

A: Molar mass of any substance is the mass of one mole of the substance, which is expressed as g/mol.…

Q: How many Oxygen are in 6.913x10^23 molecules of nitroglycerin C3H5N3O9?

A: Given question is checking our mole concept principal. In this question, number of molecules of…

Q: - How many grams of oxygen is presentin5.764 X 102'molecules of carbon nonoxide? O None of the above…

A:

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: A sample of trifluoroacetic acid, C,HF,O2, contains 62.1 g of oxygen. Calculate the mass of the…

A: The mass of oxygen in the trifluoroacetic acid, C2HF3O2 is = 62.1 g The mass of the trifluoroacetic…

Q: A sample of an unknown compound containing 6.54 g C, 0.55 g H, and 2.91 g O. Determine the empirical…

A: Given: Mass of C = 6.54 g Mass of H = 0.55 g And mass of O = 2.91 g

Q: How many molecules are in 4.83×1020 H2O2?   I don't quite understand how to do these calculations. I…

A: Note: Hey there! Thank you for posting the question. Since the unit is not given, we have taken…

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: Determine the number of molecules of ethanol( C 2 H 5 OH) in 47.0 g.

A: In the International System of Units, the mole (symbol: mol) is the unit of measurement for the…

Q: 1 mole of 63Cu atoms has a mass of about 63 grams. Explain why the number below Cu on the periodic…

A:

Q: Number of atoms of C in 16 moles of C,H10 are: O 6.64x10^23 385.41x10^23 O 24.09x10^23 O 96.35x10^23

A:

Q: How much would 2.4 x 1024 molecules of N2O5 weigh?

A: Moles=2.4*10^24/(6.022*10^23) = 4

Q: 4. Calculate the mass of 2.5 x 10^23 formula units of magnesium phosphate. 5. Calculate the number…

A: [4.] 1 mole of Mg3(PO4)2 contains 6.022 × 1023 molecules. So,  2.5 × 1023 molecules will contains  =…

Q: A sample of NH3 has a mass of 84.06 grams.   Calculate the moles of NH3 in the sample.…

A: Given : Mass of NH3 = 84.06 g

Q: Convert 98.09 grams of X5Z4 into moles of the same compound. (Assume that the molar mass of X is…

A: Mole in terms mass:  1 mole = molecular mass of the compound  X5Z4 molar mass = 5 x 46.14 g/mol + 4…

Q: An unknown compound comprised of osmium and chlorine is 40.11% osmium by mass. a. If you assume…

A: Hello. Since the question contains more than three sub-parts, the first three sub-parts shall be…

Q: How many moles are there in 1.81 x 1024 molecules of ammonia? A) 1.00 moles B) 5.00 moles C) 7.00…

A:

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW AI2(S208)3 = 330.34 amu) O a. 3.01 X…

A: Given that : Molecular weight of Al2(S2O8)3 = 630.34 amu or g/mol Mass of Al2(S2O8)3 = 3.15 g Number…

Q: Calculate the number of atoms in 12.45 grams of iron . 1.342 x 1023atoms 1.342 x 1022toms 0.223…

A: The question is based on mole concept. We have to calculate number of atoms of iron.

Q: 28) Determine the mass of the following compound: 0.0146 mol KOH A) 56.11 g B) 0.819 g C) 8.19 g 29)…

A:

Q: sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: We have given that  A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g  calculate the moles and…

Q: How many oxygen atoms are there in 2.10 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) %3D O a. 4.82 X…

A:

Q: What are the values for % Cl and % F, respectively, for Sample II?A. 0.622 and 61.65 C. 38.35 and…

A: Mass percent of a compound is equal to the mass of component divided by the total mass of all the…

Q: What is the percent composition of oxygen by mass to one decimal place in CuSO4 . 5H2O? A. 57.7%…

A:

Q: the mass, in grams,

A: Given information: molecules of methanol (CH3OH) = 9.01×1024 Mole is the amount of the substance…

Q: Determine the mass, in grams, of 0.635 moles of I (1 mol of I has a mass of 126.90 g)

A: Given: Moles of I = 0.635 mol Molar mass of I = 126.90 g/mol

Q: How many oxygen atoms are there in 3.15 g of Al2(S208)3 (MW A12(S208)3 = 630.34 amu) O a. 2.41 X…

A: Given that,  Amount of Al2(S2O8)3 = 3.15 g Molar mass of Al2(S2O8)3 = 630.34 amu Moles of Al2(S2O8)3…

Q: 5. Which statement is NOT true? a. One mole of a substance contains a fixed number of particles. b.…

A:

Q: 16) What is the mass of 4.9 moles of N2O5?   a.   0.5292g   b.   52.92g   c.   5.292g…

A: One mole of any species contains its molar mass and one mole of any species contains avagadro number…

Q: 26. What is the percent by mass of oxygen in Ca(OH),? А. 40.0 % В. 33.3 % С. 36.3 % D. 43.2 % Е.…

A: Atomic mass of Ca = 40 g mol-1 Atomic mass of O = 16 g mol-1 Atomic mass of H = 1 g mol-1

Q: Determine the mass in grams of 4.78 × 1021 atoms of chromium. (The mass of one mole of chromium is…

A: The number 6.023 × 1023 indicates the number of atoms or molecules in a mole of any substance is…

Q: 4. Determine the number of molecules of compounds or atoms for the following. 15.8 mol H20 9.51 x10…

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

Q: Number of atoms of C in 9 moles of C4H10 are: O 3.74x10^23 O 216.79x10^23 O 24.09x10^23 54.20x10^23

A: C4H10 In one mole of C4H10 = 4 mole of Carbon atoms are present . So , in 9 mole of C4H10  = 9 × 4…

Q: mass Zn= x hort x(65.4g Zn ) mole Zn %3D -3 *10

A: Given: Moles of Zn = 8.425 × 10-3 mol. And the atomic mass of Zn = 65.4 g/mol.

Q: etermine the mass, in grams, of 0.520 moles of Si (1 mol of Si has a mass of 28.09 g).

A: The chemical changes observed in any reaction involve the rearrangement of billions of atoms. It is…

Q: Calculate the mass (in g) of each sample. 5.94x1020 SO3 molecules

A: Given: 5.94*1020 SO3 molecules

Q: What is the mass of 4.9 moles of N2O5?   a.   52.92g   b.   5.292g   c.   0.5292g…

A: We have given the moles of N2O5 = 4.9 mole

Q: (d)Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Cl in the compound?…

A: Number of moles = mass / molar mass  % by mass =( mass of Cl atoms in Mn(ClO4)4 / mass of 1 mol of…

Q: Mass spectrometers are used to determine which of the following? A. Composition in sample B.…

A: Mass spectrometers are the instruments which is used to determine the mass to charge ratio of…