Part 1 - count the moles, molecules and atoms # of moles # of atoms in each Total # of atoms molecule Formula # of molecules 30, 3 moles of 0, 3 molecules O, 2 atoms per molecule 6 atoms total 2H,02 Ca(ОН), 2C,H10 | 4H,SO,

Q: If the mass of Mg is 0.19g and the product mass is 0.74g. What is the moles of Mg in the product

A: In this question, we have to calculate the number of moles of Mg produced. 1 mole of any substance…

Q: Calculate the following quantities:(a) mass, in grams, of 1.50 * 10-2 mol CdS(b) number of moles of…

A: a) Given: 1.50 x 10-2 mol CdS The mass in grams is calculated as shown below,

Q: 1- An unknown compound has the following chemical formula: P2Ox where x stands for a whole number.…

A: Chemical formulae provide a means of describing any chemical material that uses the symbol of the…

Q: Compound Weight (in grams) Molecular Weight Barium hydroxide 10 171.34 g/mol Sodium chloride 25…

A:

Q: 5.50 g of a certain Compound X, known to be made of carbon and hydrogen, and to have a molecular…

A: First of all we will calculate the empirical formula and then molecular formula.

Q: If 2 molecules of CH, react with 5 molecules of O,. determine the number of molecules of CO, that…

A: A balanced reaction is the reaction in which both sides of the reaction have equal numbers of each…

Q: Atoms of three different elements are represented by O, h, and D. Which compound is left over when…

A: According to the given question there are atoms of three different elements that react in a…

Q: Hydrocarbon mixtures are used as fuels. What mass of CO2 gas is produced by the combustion of 314.4…

A: First, the moles of CH4 and moles of C3H8 present in the mixture is calculated.

Q: Answer the following questionsn related to the analysis of CaBr2. a.) A student has a 10.0 g sample…

A: Given, a) A student has a 10.0 g sample of CaBr2.  Show the setup of the calculation to determine…

Q: How many formula units are in 22.4 g SnO2?

A: Given  mass of SnO2 = 22.4 g

Q: Ammonia, NH3, can be synthesized by this reaction:

A: Given,  Amount of NO is 45.8 g Amount of H2 is 12.4 g Formula Used,

Q: Number of Molecules or Number of Atoms or lons 2.379 x 10 ^23 Number of Substance Mass (g) Moles…

A: Number of moles = given mass/molar mass Also 1 mole = 6.022 × 1023 atoms, molecules, formula units…

Q: 6.00 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: We need to find emperocal formula then emperical mass

Q: Fe,03 + HCI → FeCl, + H2O 5 g 5 g ?g 5. How many grams of the product is produced?

A:

Q: 1.    How many grams are in 7.3 x 1024 formula units of Mn?  Mn= 54.94   Molar Mass:       =…

A: Given that -  Number of formula units in Mn = 7.3×1024  And, molar mass of Mn = 54.94 g/mol…

Q: Given 6Li + N2 0 2 Lİ3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: 6Li + N2 = 2Li3N  Atomic mass of Li is 6.94 g. Molar mass of Li3N is [ (3×6.94)+14] = 34.83 g. 2…

Q: 12. For the reaction 2Al + 6HCl → 2AlCl3 + 3H2 How many moles of H2 are produced by the complete…

A: Given  Reaction  2Al  + 6 HCl   →  2AlCl3    + 3H2       Mass of Al  = 132 gram  Number of mole of…

Q: According to the following reaction, how many moles of mercury will be formed upon the complete…

A: 2HgO(s)----->2Hg(ℓ )+O2(g) From balance equation , No. of moles HgO = No. of moles Hg So, No. of…

Q: How many hydrogen atoms are in 5.0 g of citric acid (CóHg87)? O 1.6 x 10²² Hydrogen atoms O 4.6 ×…

A: Mass of Citric Acid = 5.0 gMolar mass of Citric Acid = 192.124 g/moleMoles of Citric Acid = Mass of…

Q: The percent by mass of carbon in CO2 is equal to which of the following expressions? O A 12 44 x 100…

A: Percent by mass of an atom in given molecule is the mass of that element present in 100 grams of…

Q: What number of molecules (or formula units) are present in 1.80 g of each of the following…

A: Please find your solution below : Avogadro's number is the number of atoms, molecules, ions, formula…

Q: 2. Calculate number of molecules in 2.33 g CH6. molar masses: C = 12.01 g/ mole and H = 1.008 g/…

A: Given: Mass of C6H6 = 2.33 g.

Q: Sodium hydroxide reacts with carbon dioxide as follows: 2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l)   How…

A: Given, Chemical Reaction:  2NaOH(s)+CO2(g)→Na2CO3(s)+H2O(l) Moles of NaOH = 2.30 moles  NaOH is…

Q: What number of molecules (or formula units) are present in 8.26 g of each of the following…

A: Given- Weight of substance=8.26g

Q: Mole is the term used to express the quantities of substances involved in a chemical reaction. Mole…

A:

Q: How many moles of pentane (C 5H 12) are contained in the following number of molecules? a. 5.00 × 10…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: 7. SO2 8. KCl and NH, 9. CH, and HF

A: Few questions based on intermolecular force of attraction, which are to be accomplished.

Q: If 0.274 moles of a substance weighs 62.5 g, what is the molar mass of the substance, in units of…

A:

Q: 3. What physical property of water and HCl allows us to separate them from the zinc chlorine…

A: Solution: We know the solubility principle i.e. likes dissolves like. Since HCl is the strong acid…

Q: Given 6Li + N2 0 2 LI3N, Determine the number of moles of lithium required to make 46.4 g of lithium…

A: As per our company guidelines we are supposed to answer only one question. kindly repost other…

Q: Mass of watch glass and evaporating dish (g) = 59.92 Mass of watch glass, evaporating dish, and Mg…

A:

Q: tion: CH4 + 4CI2 --> CCI4 + 4HCI How many moles of CCI4 is formed by the reaction of 4.5 moles of…

A: The question is based on the concept of reaction Stoichiometry. we have to calculate number of moles…

Q: 2. Convert 0.34 moles NaOH to grams. A) 2.04 x 1023 C) 6.8 B) 13.6 D) 0.0085 3. Convert 0.23 moles…

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

Q: sulphur dioxide reacts with oxygen to make sulphur trioxide. 2SO2 + O2 --> 2SO3. Calculate the…

A: The reaction between SO2 and O2 that give SO3, whose theoretical yield is to be calculated using the…

Q: True or False? One mole of molecular O2 = 6.02 x 1023 O2 molecules. Mass of O2 in 100g of CO2 =…

A:

Q: 2. 45.3 L O, to moles at STP 3. 4.5 atoms of Mg to moles 4. 98.0 g NaOH to formula units

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

Q: How many formula units are present in 500.0 g of Substance A. (molar mass 278.2g/mol) O 1.082 x 1024…

A: Given : Mass of substance = 500.0 g And molar mass of substance = 278.2 g/mol.

Q: (1) number of C atom in 2.5 mole of C. (2) number of O atom in 2 mole of H3PO4. (3) Moles of H₂O in…

A:

Q: 4 S(s) +6 O2(g)→ 4 SO3(g) AH°xn = ? %3D Given: SO2(g) → S(s) + O2(g) ΔΗ rxn +296.8 kJ AH°ryn =…

A:

Q: Hydrocarbon mixtures are used as fuels. What mass of CO2 gas is produced by the combustion of 343.5…

A: The mass of carbon dioxide produced by combustion of 50.8 % methane is calculated as,

Q: Q1: a- How many hydrogen and oxygen atoms are present in 1 molecule of H2O? b- How many moles of…

A: a)

Q: Ammonia, NH3, can be synthesized by this reaction: 2 NO(g) + 5 H2 (g) ----------→ 2 NH3 (g) + 2 H2O…

A: The balanced reaction taking place is given as, => 2 NO (g) + 5 H2 (g) ---------> 2 NH3 (g) +…

Q: Consider the reaction:   NH3 + O2 → NO + H2O For every 150 g NH3,   Find the mass of NO…

A: NH3 + O2 → NO + H2O Given, mass of NH3 = 150 g Molar mass of NH3 = 17 g/mol Molar mass of NO = 30.01…

Q: Compound Mass Moles Number of molecules CO2CO2 _____ 0.0105 _____ COCO _____ 0.0196 _____ BrIBrI…

A: Number of moles = Mass of the compoundMolar massMass of the C2O4=?Number of moles = 0.0105…

Q: Predict how many moles of CaO he should have ended up with, using the following steps. Given that…

A: Given, Amount of CaCO3 = 5.0 g Molar Mass of CaCO3 = 100 g/mol Formula Used:

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.