re each number. Column A Column B 1. What is the mass of 0.042 mole C8H18? 2. How many moles are there in 44.0 g of NaH2PO4? 3. How many moles are there in 2.6 x1024 molecules of F2? 4. What is the no. of particles of Sr(NO2)2 in 4.05 moles of Sr(NO2)2? 5. What is the mass of 1.04 mole KCI? A. 2.44 x 1024 B. 4.319 C. 77.53 D. 4.799 E. 0.367

Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

Q: Calculate the number of C atoms in 0.872 mol of C? Calculate the number of SO2 molecules in 8.44…

A: The answers to the first three questions are given as:

Q: Give the following generic chemical reaction, determine the moles of B2 needed to react with 1.25 x…

A:

Q: If you have 42.5 moles of glucose (C6H₁206) approximately how many grams do you have? #3

A:

Q: 3. Sodium carbonate decahydrate Na CO₂ · 10H₂0 .

A:

Q: What is the mass percentage

A:

Q: For the reaction C + 2H2 → CH4, how many moles of hydrogen are needed to make  182 grams of methane,…

A: Here a chemical reaction is given that is  C + 2H2 → CH4. Now, we have to calculate how many moles…

Q: How many grams are in 1.18 x 1021 HF molecules? H = 1.008 g/mole and F =19.00 g/mole

A: Number of mols = Weight in gMolecular weight in g/mol Then Weight of the substance = Number of mole…

Q: How many moles are there in 178.66 g of Hexane (CGH14)? O 3.57 O 0.48 O 2.08 O 0.28

A: Given mass of C6H14 = 178.66 g Moles = Given mass / Molar mass  Molar mass of C = 12 g/mol  Molar…

Q: 1. Hydroxyapatite, Ca5(PO4)3(OH), is a naturally occurring mineral in the bone. A. Calculate the…

A: A question based on mole concept that is to be accomplished.

Q: The chemical formula for feldspar is K₂Al₂Si₆O₁₆. How many moles of feldspar are in 669.9 grams?

A: Number of moles of a substance is equal to the mass of substance divided by its molar mass. Write…

Q: Freon-12 (CCI2 F2) is used as a refrigerant in air conditioners and as a propellant in aerosol cans.…

A:

Q: 7. CaSO4 + 2AGNO3 → Ag2SO4 + Ca(NO3)2 a. If 288 of silver sulfate are produced, calculate the grams…

A: Given-> Weight of Ag2SO4 = 288 gm

Q: How many moles are in 5.78 x 1023 molecules CO,?

A: Given :- number of molecules of CO2 = 5.78 × 1023 molecules  To calculate : number of moles of CO2…

Q: 2 Fe203 + 3 C → 4 Fe + 3 CO2 how many moles of Carbon (C) are needed to produce 1.9 moles of Iron…

A: The given equation is as follows 2Fe2O3 +  3C ----------->>> 4Fe + 3CO2  According to…

Q: What is the mass percentage of O in CO2? Provide an answer to two decimal places.

A: Given,  The mass percentage of O in CO2 is:

Q: How many molecules are there in 0.500 moles of sugar, CgH1206? 90 molecules G 3.01 x 10 23 molecules…

A: Given : Moles of sugar = 0.500 mol.

Q: How many moles are there in 4.31 × 10¹2 molecules of sucrose C12H22011? (1 mole = 6.022 x 1023…

A:

Q: How many moles are there in 313.87 g of Hexane (CHiJ? O 6.28 O 0.16 O 3.65 O 0.27

A: Calculate moles of 313.87g of hexane ?

Q: 2XO3(g) → 2XO2(g) + O2(g) a. In the box on the right, draw the content of the sample after the…

A: The balanced chemical equation shows the relationship between the number of moles of reactants and…

Q: Determine the mass in grams of 1.6 × 10⁻³ mol glucose (C₆H₁₂O₆)   How many moles of propylene (C₃H₆)…

A: The question is based on mole concept . We have to calculate moles,  mass and hydrogen atoms.

Q: How many moles of H20 can be formed from 6.62 x 10 atoms of NH3 from the following equation? 4 NH,…

A: One mole of any chemical substance contains Avogadro’s number or Avogadro’s constant of atoms in it.…

Q: How many grams are in 5.32 × 1022 | molecules of CO2 ?

A: The amount of 5.32x1022 molecules of CO2 is to be calculated.

Q: In 0.4 ure in 2.9 mol of

A: Firstly Calculate the moles of Br atom in CHBr3  moles of Br atom = 3 • ( moles of CHBr3 )  Moles of…

Q: The number of moles  of 3.06 X 10–3 g of C2H5NO2 is 0.0408 moles.

A: In international system of units, Mole is considered as a unit which helps to calculate the amount…

Q: How many grams of carbon are in 1.13 x 1025 molecules of (carbon dixide) CO2 ?

A: Given, Number of molecules of CO2 = 1.13 x 1025  Mass of Carbon (C) = ? Note: molar mass of C =…

Q: In measuring the sample that is placed into a SCUBA diver's tank it has the following gases: 52.00 g…

A: A numerical problem based on percentage concentration, which is to be accomplished.

Q: #58. How many moles of nitrogen gas would be produced if 4.81 moles of copper(II) oxide were reacted…

A: Stoichiometry is the calculation of reactants and products in chemical reactions in chemistry.

Q: 3. What is the mass in grams of 0.0435 moles of alcohol (C,H;OH)?

A: Molar mass = 2 • ( molar atomic mass C ) + 6 • ( molar atomic mass of H ) + ( molar atomic mass of O…

Q: aspartame has molecular formula of C14H18N2Oc5(s). what is the molar mass? what is the amount of…

A: The molar mass of any molecule is the total sum of the molar masses of all the atoms present in that…

Q: How

A: moles of water = ( molecules of water ) / ( Avogadro number )  Where :  Molecules of water is 2.0 •…

Q: How many moles are in 102.99 g of Fe3(PO4)2?

A:

Q: Ammonia is produced from the reaction of nitrogen and hydrogen according to the following balanced…

A: Ans

Q: If a sample of B10H12[N(CH3)3]2 is found to contain 7.48 · 1020 B atoms how many N atoms are…

A: Given: number of B atoms = 7.48×1020 atoms

Q: 6. A mixture weighing 6.200 grams is 28.0% silicon dioxide or sand, SiO2, 36.0% sodium chloride, or…

A: Since the mixture is having silicon dioxide, sodium chloride and baking soda only  Hence the sum of…

Q: . How many moles of Al(C 2 H 3 O 2 ) 3 contain 19mol O ? 6. Determine the % composition by mass of…

A:

Q: Calculate the molar mass of the following substances. Molar Mass = b. Mg3(PO4)2 Molar Mass = c.…

A: Molar mass of given compounds can be calculated as:

Q: For the reaction P4010(s) + 6H₂O(l) → 4H3PO4(aq), what mass (in gram) of P4010 must be consumed if…

A:

Q: What mass in grams are in 5.32x10^22 molecules of CO2? For some reason, I'm getting confused on how…

A:

Q: how many moles of H2O can be formed from 3.02 x 1023 molecules of NH3 from the following equation…

A:

Q: A vial contains 4.17 x 1023 molecules of an unknown organic compound.  How many moles (3 sf) of this…

A: given, the unknown organic compound contains " 4.17 x 1023 " molecules.

Q: N2(g) + 3H2(g) → 2NH3(g) What mass of ammonia (formula: NH3), in grams, would be produced if 525 mg…

A: Balanced chemical equation is N2(g) + 3H2(g) → 2NH3(g)Given: Mass of H2 reacted = 525 mg = 0.525 g…

Q: What mass of zinc sulfide 19 5. The addition of concentrated hydrochloric acid to manganese (IV)…

A: Given: Mass of HCl= 4.76×10-2g Mass of MnO2 = excess

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

A:

Q: Avogadro's number is the number of particles in one mole, 6.022 x1023 particles = 1 mol.  How many…

A: The number of molecules of compound can be determined by the multiplication of Avogadro's number…

Q: A beaker holds 4 x10^23 molecules of H2O. How many moles of H2O are in the beaker? Round to the…

A: The provided molecules of H2O=4×1023 molecules According to the Avagadro one mole of any substance…

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.