Which of the following contains the largest number of atoms? Select one: a. 1.0 mol of water (H2O) b. 1 mol phosphorus trichloride   (PCl3) c. 1 mole of carbon tetrachloride (CCl4) d. 1 mol carbon dioxide     (CO2) e. All of these contain the same number of atoms.

Q: The compound(NH4)2 S2 O3, Which element is present in the largest percent by mass? A. N B. S C. O…

A:

Q: PXCI, where x stands for a whole number. Measurements also show that a certain sample of the unknown…

A:

Q: Assume the atomic mass of element X is 22.99 amu. A 20.28-g sample of X combines with 16.76 g of…

A: Answer:- This question is answered by using the simple concept of calculation of atomic mass of the…

Q: a. Oxalic acid is a crystalline solid with the molecular formula H2C2O4. A sample of pure oxalic…

A:

Q: Determine the number of grams of Q2Z3 in 0.13 mol of Q₂Z3

A:

Q: sample

A:

Q: How many molecules are in each sample? a. 6.5 g H,0 b. 389 g CBr, c. 22.1 g O, d. 19.3 gC,H10

A: a) 2.5g H2O = Mass of H2O = 6.5g Molar mass of H2O = 18g/mol The number of molecules can be…

Q: A sample of carbon dioxide is analyzed and determined to be 27.3% by mass carbon. If a 50.0 g sample…

A: Consider a compound AB  Percent of A = (Mass of A/Mass of AB) x 100  Law of conservation of mass:…

Q: Which of the following statements is not correct? A. 12.01 g of C contains 6.022 x 1023 atoms of C…

A: 1 mol of any substance contains Avogadro's number of particles (atom/ion/molecule etc.). Avogadro's…

Q: Antimony has two naturally occuring isotopes, Sb121Sb121 and Sb123Sb123. Sb121Sb121 has an atomic…

A:

Q: Which sample contains the greatest number of atoms? 54.7 g V 51.2 g Mn 203 g Bi

A: To find number of atom we have to calculate number of moles first. Moles= given mass/molar mass…

Q: Determine the number of moles of hydrogen atoms in each sample.a. 0.0885 mol C4H10 b. 1.3 mol CH4c.…

A:

Q: The reaction of sulfur powder (S8) with oxygen gas (O2) results in the formation of one of many new…

A: We know that, molar mass of O = 15.999 g/mol molae mass of S = 32.065 g/mol

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

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: Which of the following samples of gases contains the greatest number of atoms? (Relative atomic…

A: 4th option is correct that is 13.0 g of C2H6

Q: Calculate the grams of nitrogen in 23.4 g of Ca(NO3)2.  2. Calculate the mass percent of chlorine…

A: The given data : 1.The mass of the Ca(NO3)2 = 23.4 g To determine = The mass of nitrogen 2.…

Q: A sample of cyanic acid, HCN, contains  3.33 x 1022 atoms. a. How many moles of cyanic acid are in…

A:

Q: Provide the major organic products for the following reactions. KMN04 hot, conc. CI он NaOH NO2 heat…

A:

Q: Convert 1.28 moles of Pb (OR P b) to grams. Do not type units with your answer. The atomic weight…

A: Given that, The no. Of moles of Pb = 1.28 moles Atomic weight of Pb = 207.2 grams/mol

Q: 24. The total number of sodium atoms in 46.0 grams of sodium is A. 3.01 x 1023 atoms B. 6.02 x 1023…

A:

Q: need

A: First Calculate the mass of Al :  Mass of Al = Density • volume  Mass of Al = 2.70gcm-3 • 13.2cm3…

Q: What mass of Al contains the same mumber of atoms as 3,.0g Pb a 23 g 6.0.014 g c 3.0 g d.0.39 g e…

A: Given : Mass of Pb = 3.0 g Since number of atoms of any element is given by, => Number of atoms =…

Q: How many iron ions are present in 43.6 g of Fe203? Select one: O a. 1.64 x 1023 ions O b. 2.63 x…

A:

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: 3. A 2.241 g sample of nickel combines with oxygen to produce 2.852 g of a metal oxide. a. Calculate…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: A sample of cyanic acid, HCN, contains  3.33 x 1022 atoms. a. How many moles of cyanic acid are in…

A: Given : Total number of atoms of HCN = 3.33 X 1022 atoms.

Q: Which of the following compounds contains the largest number of atoms?  a.4.0 mol of H2S b.3.0 mol…

A: The largest number of atoms present in which compound can be calculated as,

Q: 1. A. What is the mass in grams of atoms of strontium? grams B. How many strontium atoms are there…

A: We have to apply mole concept

Q: 1. 2 moles of Ar atoms contain how many atoms?           A.   1        B.   1.204 x 1024…

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

Q: . What is the mass, in grams, of each of the following? a. 2.3*10^-3 mol Sb b. 3.59*10^-2 mol Ba…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The element rhenium (Re) has two naturally occurring isotopes, 185 Re and 187 Re. Rhenium is 62.60%…

A:

Q: In 6.9 g of aluminum, there are ______ x 1023 aluminum atoms present

A: Molecular mass of atom contains 6.023 × 10^23 atoms. Molar mass of aluminium is 26.981 g/mol

Q: A sample of ammonia has a mass of 96.3 g. How many molecules are in this sample? A. 5.65 molecules…

A: One mole of any substance consists of 6.022×1023 molecules. The number of moles of a substance can…

Q: Convert 3.69 moles of Al (OR A l) to grams. Do not type units with your answer. The atomic weight…

A:

Q: Calculate the number of particles in each of the following. Part A. 0.146 mol carbon atoms, C.…

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.