How many molecules are in 98.70 grams of Ba (SO4)?   A. 2.5 x 1023 molecules Ba (SO4)   B. 0.6 x 1023 molecules Ba (SO4)   C. 1.4 x 1024 molecules Ba (SO4)   D. 3.7 x 1023 molecules Ba (SO4)

Q: Determine the number of molecules in 23.6 grams of CH₄.

A: Given : Mass of CH4 = 23.6 g

Q: 1) a chemical mole A-is a kind of material B-is a large molecule C-contains an undetermined number…

A: Mole concept: Avogadro's number = 6.022 × 1023 1 mol of any substance contain 6.022 × 1023 molecules…

Q: If a sample of H2O contains 9.02 × 1023 molecules, how many grams of H2O is this?   A. 3.00 g H2O…

A: Third option. C. 27.0 g of H2O

Q: ow many fluorine atoms would it take to make up a mass of2.83×10—22 g?   25 atoms    None of the…

A: Given data, Mass of F = 2.83 x 10-22g Data taken from google; Molar mass of F = 18.998 g/mol

Q: A sample of chlorine has a mass of 49.4 grams. How many Cl atoms are there in the sample?  atoms…

A: Chlorine mass of  = 49.4gm Calculate the  =  1 - how many cl atom of sample  2 - how many cl2…

Q: How many grams are in 2.34X10^23 molecules of Ba (SO4)? A. 3286.5 grams  Ba (SO4) B. 90.7 grams…

A: Given data is as follows: The number of molecules of BaSO4 = 2.34×1023 The mass of BaSO4 = ?

Q: There has been increased evidence that human activities are causing changes in Earth's atmospheric…

A: The mass of oxygen used = 1.0 g. The molar mass of Oxygen = 16 g/mol.

Q: 1) Determine the number of moles in each sample: a) 38.2g sodium chloride b) 36.5g nitrogen monoxide…

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound? A 3.10 x 1023 molecules H20…

A: Given that: Mass of water = 9.27 g Molar mass of H2O = 18g/mol Moles of water = 9.27g÷18g/mol =…

Q: What is the mass of 2.00 × 10 ^ 19 molecules of CCl4?

A: Given the number of molecules of CCl4 are --- 2.00×1019 molecules What is the mass of this given…

Q: Predict the sign of ΔS for

A:

Q: (a) 2CH4(g) + 2CO2(g) CH4(g) + 2H0(g) + 2CO (g) (b) CO2(g) + 3H;(g) → CH;OH(g) + H2O(g) (c)…

A:

Q: A compound is found to consist of 1.37g of iron and 2.62g of chlorine. What is the percent by mass…

A: Given that: mass of iron = 1.37 g mass of chlorine =  2.62 g  To find: the percent by mass of…

Q: If you begin with 19.76 grams of Al(s) and 15.14 grams of O2(g) , how many grams of Al2O3(s) can be…

A:

Q: What is the average mass (in grams) of a single carbon dioxide molecule? (a) 3.8 × 10-26 g (b) 7.31…

A: Molecules are formed when two or more atoms of the same or different atoms combine. These consist of…

Q: 1. How many grams of C are present in 1.83 grams of carbon monoxide ? grams C. 2. How many grams of…

A: we define moles as mass taken upon molar mass  moles  =mass  takenmolar  mass Here are required to…

Q: Balance each reaction and write its reaction quotient, Q꜀:

A: Balancing of the equation can be said as :- number of atom in reactant side = number of atom in…

Q: A 6.95-g sample of Barium Chlorate, Ba(ClO3)2, contains __________ mol of this compound.   a 31.8…

A: Mole of a substance or a mole of a particles is defined as exactly 6×10^23 particles which may be…

Q: Chocolate Chunk Raisin Oatmeal Cookies Recipe Ingredients 1.806 x 1023 molecules white sugar 1 1/5…

A: Molecular weight of white sugar (C12H22O11) = 342 Molecular weight of baking soda (NaHCO3) = 84…

Q: a) CIO, (aq) + 5 C(aq) + 6 H30*(aq) 3 Cl2(aq) + 9 H20(0) b) CaCO3(s) + SO3(g) CaSO4(s) + CO2(g) c)…

A: We have to write OA under the oxidizing agents and RA under the reducing agents and also consider…

Q: How many MOLECULES of water are present in 9.27 grams of this compound? (A) 2.80 x 1032 molecules…

A:

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

A: The average nicotine (C10H14N2) content of a Camel cigarette is 1.93 mg.

Q: A sample of oxygen has a mass of 25.2 grams. How many O atoms are there in the sample?  atoms How…

A: Calculation given as follows

Q: How many grams of Ca(NO3)2 contains 36 grams of oxygen atoms? (A) 15 g (B) 30. g (C) 24.5 g (D) 37…

A: molar mass is defined when we take mass for only one mole ie, for 6.023 ×10-23 atoms. If we have to…

Q: Calculate the mass of carbon dioxide produced from 15.6 g of octane, C8C18, in the 2C8H18(g)…

A:

Q: C7H16(g) + O2(g) →   C2H2(g) + O2(g) →   C3H8O(g) + O2(g) →

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: Determine the number of molecules in 31.6 grams of CCl4

A:

Q: The formula for sulfur dioxide is . A. How many molecules are in 2.64 grams of sulfur dioxide?…

A: The formula for Sulfur dioxide is :                    SO2 Given:For part Agiven mass of SO2…

Q: 15. How many hydrogen molecules are there in 10.0 grams of H2? a. 8.16 x 1023 molecules b. 3.01 x…

A: Concept: The number of hydrogen molecules present in one mole of hydrogen is equal to the Avogadro…

Q: 18. What is the number of grams of N2(g) that contains 9.02 x 1023 molecules? A. 18.7 grams B. 42.0…

A: Given the number of molecules of N2(g) =9.02×1023 moleculeswe are asked to calculate the amount of…

Q: How many moles are equal to 1.20 x 1024 atoms of sulfur (S)? Round to 2 decimal places.   a 0.20  b…

A:

Q: What is the mass of ten billion billion molecules of carbon dioxide? (That is 1.0 x 1019 molecules)…

A:

Q: A 94.8 g sample of Fe304 reacts with 17.39 g of CO to form FeO and CO2. FezO4(s) + CO(g) - 3FEO(s) +…

A:

Q: 5. How many molecules are in 142.69 L of CH4? A V-M. a. 8.59 x1025 molecules b. 6.37 molecules C.…

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

Q: What percent by mass of iron(II) phosphate is iron? a.46.9 b.73.2% c.24.3% d.33.7%

A: Determination of percentage of iron in iron(II) phosphate

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: 4. One mole is equivalent to a. 3.75 g Hydrogen c. 16 g Oxygen b. 14 g Carbon d. 190 g Gold 5. What…

A: Answer  4 ) one mole is equivalent to        c) 16g  oxygen  1 mol is  equal to 6.022×1023 (…

Q: 1. How many ATOMS of carbon are present in 9.30 grams of carbon tetrafluoride, CF4? atoms of carbon…

A:

Q: A) How many grams of Mgl2 is present in a 0.4745 g sample that is 53.21% Mgl2 (278.11 g/mol)? B)…

A:

Q: What number of atoms of carbon is in 1.00-carat diamond

A: Number of moles = mass/molar mass  Molar mass of carbon = 12.0107 g/mol  1 mol carbon contains 6.022…

Q: An aspirin tablet contains 0.325g of C9H8O4. A) How many molecules of C9H8O4 does it contain? B)…

A: Given: Mass of C9H8O4 = 0.325 g.

Q: 4. Which of the following is not a correct description of 16.0 grams of methane, CH₂? A. It is one…

A: One mole compound has a mass equal to the molar mass of the compound. 1 mole of substance contain…

Q: 4 Na O2 2 Naz0 12 mol 0.1 mol 2 AI 3 Cl2 2 AICI, 5 mol 0.1 mol 6% O2 4 CO2 5 H20 C4H10 0.5 mol 20…

A:

Q: The formula for boron trichloride is BCl3. A. How many molecules are in 9.31 grams of boron…

A: Molecular formula of Boron trichloride is BCl3. It has three Chlorine atom and one boron atom. Molar…

Q: 1. Find the number of moles of Argon in 452 g of Argon. 2. Find the grams in 1.26 x 10^-4 mol of…

A:

Q: A sample of a compound has a mass of 41.13g. The sample is found to contain 37.28g of carbon and…

A: Percent composition of the compound is described as the percent of mass of each component of the…

Q: H2S; H: 2 (1.01) S: 32.06 34.089/mol 02:2(16) = 329/mol H20: H: 2(1,01) Section 11.3 1) Consider the…

A:

Q: O Cl2(g) + 2KBr(aq) → Br2() + 2KCI(aq) O Zn(s) + H2SO4(aq) → ZnSO4(aq) + H2(g) 2H2(g) + O2(g) →…

A:

Q: 1. How many grams of Mn2* are present in 1.53 grams of manganese(II) fluoride? |grams Mn²+. 2. How…

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.