How many MOLECULES of water are present in 9.27 grams of this compound? A 7.10 x 1023 molecules H20 (B 2.80 x 1032 molecules H20 3.12 x 1024 molecules H20 D 3.10 x 1023 molecules H20

Q: How many molecules of sulfur trioxide are in 78.0 grams? O 0.974 none of the above O 7.33 x 1023 O…

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

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: How many H20 molecules are there in 3 moles of H20 sample? O 6.02 x 1023 molecules O 2x 6.02 x 1023…

A: Given: Moles of water, H2O = 3 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: The formula for sulfur hexafluoride is SF. a. How many molecules are in 6.61 grams of sulfur…

A:

Q: How many MOLECULES of water are present in 9.27 grams of this compound?   2.80 x 1032 molecules H2O…

A:

Q: What is the mass in grams of 2.68 x 1024 molecules of NBr5?

A: Given, the number of molecules of NBr5 =2.68×1024 moleculeswe are asked to calculate the mass of…

Q: Nitrogen dioxide is a component of urban smog that forms from gases in car exhaust. How many…

A: Detail mathematical calculation is shown below

Q: Co(NO3)2

A: a) First find out the moles of Co(NO3)2 :  moles = ( formula unit / Avogadro number )  Moles = (…

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: How many MOLECULES of water are present in 9.27 grams of this compound? A) 7.10 x 1023 molecules H,0…

A:

Q: How many Fe(NO3)3 formula units are there in 351.0 g Fe(NO3)3 ?

A:

Q: How many individual formaldehyde (CH20 = 30.03 g/mol) are found in a 32.0 mL sample %3D of gaseous…

A: Data given, Volume of formaldehyde = 32.0 mL The density of formaldehyde = 0.815 g/mL Molar mass of…

Q: How many oxygen atoms are in 34.2 g of dinitrogen trioxide?

A: We have to find oxygen atoms are in 34.2 g of dinitrogen trioxide

Q: Which of the following items has the greatest number of carbon atoms? A. 2.71 x1022 molecules of…

A: Calculate in which one having greatest number of carbon atom ?

Q: How many atoms are in 25.6 g tin? O 3.01 x 1023 atoms O 3.01x 1024 atoms O 6.02 x 1024 atoms O 1.30…

A: Given data:  Mass of tin = 25.6 g Standard data:  The molar mass of tin = 118.71 g/mol

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

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

Q: The number of ammonia (NH3) molecules present in 4.85 grams of NH3is: a.1.02 x 10^25 c. 1.72 x…

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: How many grams are in 1.2 × 1024 atoms of carbon

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

Q: The density of water is 1.00 g/mL at 4°C.How many water molecules are present in 2.36 mL of water at…

A: given density of water = 1 g/ml

Q: (3.9) How many grams of hydrogen are present in 255 mL of propane at room temperature? The density…

A: Hydrocarbon are the organic compounds made up of carbon and hydrogen.  There are aliphatic and…

Q: How many grams of C3H&O are in 5.00 x 1022 molecules? O 29.9 g O .083 g O 4.99 g 50.0 g

A: Calculate the number of moles of the compound. Number of moles = Numer of moleculesAvogadro's…

Q: The number of grams of 1.38 x 1022 molecules of C12H22011 is: 0.0229 g 7.84 g 342 g 2.29 g

A: Avogadro's  number gives the number of atoms, molecules or ions in one mole of the substance and it…

Q: mass in grams of  1.74 x 10^24 atoms of beryllium

A:

Q: How many calcium atoms are in 1 g of CaO? O 9.553 x 10-23 O 7.201 x 1023 O 1.074 x 1022 O 1.422 x…

A:

Q: How many helium (He) atoms are there in 3.75 moles of helium?   3.75 x 1023 atoms 3.99 x 1025 atoms…

A: You have given - Moles of He = 3.75 mol

Q: Dichlorodifluoromethane (CF2CI2) is an Ozone-depleting substance. It belongs to a class of compounds…

A: Atomic Weight of C = 12.01g/mol Atomic mass of Fluorine = 19.0g/mol Atomic mass of Chlorine =…

Q: the formula for disulfiram decafluoride is S2F10   A.How many molecules are in 1.35 grams of…

A: A.

Q: How many grams of CaBr2 are there in 0.31 moles of CaBr2? A 24 g B 0.002 g c 7.3 g D 62 g

A: Given moles of CaBr2 = 0.31  Molar mass of CaBr2 = 199.89 g/mole Required  formula  moles =Mass/…

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: How many MOLECULES of water ,H2O , are present in 8.93 grams of this compound? _____ molecules How…

A: a. It is given that the mass of water molecule is 8.93 g.Thus, the number of moles of water can be…

Q: How many atoms of hydrogen are present in 4.54 g of ammonia? A. 6.64 x 1019 B. 8.20 x 1024 O C. 1.61…

A: We know that , 1 mole of substance contain  = 6.022 × 1023  atoms By using this relation , we can…

Q: How many lithium iodide formula units, Lil, have a mass equal to 4.24 g? 1.91 x 1022 formula units…

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

Q: How many atoms are in 25.6 g tin? O 1.30 x 1023 atoms O 3.01 x 1024 atoms O 3.01 x 1023 atoms O 6.02…

A: Moles of tin are, Moles = mass ÷ molar mass Moles = 25.6 g ÷ 118.71 g/mol Moles = 0.22 mol

Q: How many molecules are in 98.70 grams of Ba (SO4)?   A. 2.5 x 1023 molecules Ba (SO4)   B. 0.6 x…

A: Molar mass of BaSO4 = 233.38 g/mol  Mole = given mass/molar mass

Q: 1. How many ATOMS of nitrogen are present in 6.28 grams of dinitrogen tetrafluoride ? atoms of…

A: The molecular formula of dinitrogen tetrafluoride is:-  N2F4 Avogadro number is 6.022×1023 The molar…

Q: How many hydrogen atoms are there in the following molecules? 1 molecule of C6H12O6 2 molecules of…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: 3. Which sample contains the same number of atoms as 1 gram of He? 6 g of C 7 g of Si 9 g of F 8 g…

A: Mass of He = 1g Molar mass of  He= 4 g mol-1   Mass of C = 6 g Molar mass of  C= 12 g mol-1   Mass…

Q: The formula for ammonium sulfate is (NH4)2SO4. a. How many grams of ammonium sulfate are present in…

A: a) Given :- Formula unit of (NH4)2SO4  = 5.21 × 1022 formula unit Mass of (NH4)2SO4 = ?

Q: hat is the molecular formula of a compound containing 24.27 carbon, 4.07% hydrogen and 71.76%…

A: Given  Carbon = 24.27%  Hydrogen = 4.07%  Chlorine = 71.76%  Molar mass = 98.96 g/mol  Atomic weight…

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: How many grams are in 8.75 x 1025 molecules of l2

A: The molar mass of I2 is 253.81 g/mol that mean this mass of I2 contain 6.022×1023 of I2 per mol.

Q: A typical cup of coffee has about 100. mg of caffeine. Calculate the number of caffeine molecules in…

A:

Q: How many moles are there in 153 g of Hexane (C6H14)? O 3.06 O 1.78 O 0.33 O 0.56

A: Mass of hexane = 153 g  Number of moles of hexane = ?

Q: How many atoms of carbon are in 9.0g of C6H1206? 6 1.81 x 1023 O 4.9 x 1023 O 3.01 x 1023

A: In this question, we want to determine the number of carbon atoms in given amount of C6H12O6  You…

Q: How many grams are in 5.87x1021 molecules of sulfur?

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

Q: How many grams are in 2.23 x 1024 molecules of NiCl2?

A:

Q: How many molecules are there in 42.0 g of nitrogen gas, N2?

A: We know that : 1 mole of any substance has 6.023 x 1023 molecules Given that : Mass of N2 = 42.0 g…

Q: The formula for carbon tetrafluoride is CF4   A.How many molecules are in 4.19 grams of carbon…

A: The formula for carbon tetrafluoride is CF4 Molar mass of CF4 = 88 g mol-1

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.