. Calculate the molar mass of the following compounds: a. H2O b. CCl2F2 c. N2O

Q: Each capsule should contain riboflavini natri phosphas equivalent to 10 mg riboflavinum. Figure out…

A: Number of mol = Mass/Molar mass Number of mol of riboflavin sodium phosphate = Number of mol of…

Q: A binary covalent compound contains 78.3% baron and the rest is hydrogen. Its molar mass is…

A: We have  Percentage of Boron (B)=78.3% Percentage of Hydrogen (H)=100-78.3=21.7% Atomic mass of…

Q: Find the number of Carbon Atoms in of 36.0g of C2H4O ?

A: We have to calculate the number of carbon atoms .

Q: How many moles would be equivalent to 7.32x1024 molecules of Fernium Trimushroomide, FnMs3?

A: number of moles = number of molecules/ NA  NA= Avogadro's number = 6.022×10^23

Q: 16. I a) How many atoms of hydrogen are present in 2.69 moles of water? b) How many moles of oxygen…

A: a) The relation between number of atoms of any substance and number of moles of a substance is…

Q: 9. A compound with a molar mass of 42.08 g/mol is found out to be 85.64% C and 14.36 % H by mass.…

A: given, mass percentage of C = 85.64 mass percentage of H =14.36

Q: Calculate the percentage composition for C2H60. (Enter your answer to four significant figures.)…

A:

Q: Determine the number of formula units in 3.15 mol CaBr2

A:

Q: 5. What is the molecular mass of CH,COONA? C. 70g/mole d. ) 82g/mole 60g/mole b. 66g/mole a.

A: As per regulations only the first question can be answered. So the answer for question 5 is being…

Q: how many moles of cocl3 are in 172.6 ml of a 19.6% mass sloution of cocl3 which has a density og…

A: You have given total volume and density, then find the mass of the solution to get the % mass of the…

Q: 5. What is the relationship between molar mass in grams per mole(g/mol)and average molecular mass in…

A: The mass of 1 molecule is known as molecular mass. The unit of molecular mass is amu i.e. atomic…

Q: Ethylene dibromide was banned as a grain pesticide in 1983 because it was found to accumulate in…

A: Percent composition of each element is as follows: C = 12.7 % H = 2.1 % O = 85.1 % n can be…

Q: 2Al(s) + 3Br2(l) ->  Al2Br6(s) How many moles of Al are needed to form 2.43 mol of Al2Br6 ?

A: Mole to Mole Relationship:In these problems the moles of one of the Reactants / Products is to be…

Q: One 55 g serving of a cereal provides 267.0 mg of sodium, which is 11.6 % of the recommended daily…

A: Convert 11.6% into 100% using mathematical interpretation & convert mass into moles by using the…

Q: 19) Which of the following elements has the greatest electronegatively? A) Carbon B) Hydrogen Охуgen…

A: 24) Since Avogadro's number is defined as the number of particles in 1 mole of substance  hence the…

Q: Calculate the number of moles in 124 grams of H2SO4.

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

Q: NH,(g) + a. How many moles of b. If you have 462 mol

A: Unbalanced equation :  NH3(g)+ H2S (g)==> (NH4)2S (s) Balanced equation :  2NH3(g) +  1H2S(g)…

Q: 30 How many grams of Mo(SO3)3 are in 1.60x1023 molecules of Mo(SO3)3?

A: Given, molecules of Mo(SO3)3 = 1.60*1023 Grams of Mo(SO3)3  = ? One mole on any substance contains…

Q: I just bought half a kg of NaCl. How many moles did I purchase?

A: Given: Mass of NaCl = 0.5 Kg = 500 g.                                        (since 1 Kg = 1000 g)

Q: a) How many mols do we have in 1 liter of H2O ? (water) b)How many molecules is found in the answer…

A: The amount of substance can be expressed in grams or the number of atoms. The number of particles,…

Q: 11.How many moles of Zn are in 7.045 moles of ZnCl2?

A: Given, moles of ZnCl2 = 7.045 moles

Q: Starting with 9.20 mol of 02 , how many mol of H2S will you need ? and how many mol of S02 will you…

A: Moles of O2 = 9.20 mol  Moles of H2S = ?  Moles of SO2 = ?

Q: Calculate the molar mass of C6H12O6. Show your work.

A: Molar mass = Sum of Atomic masses of all the atoms present in the molecule  Since in each molecule…

Q: y MOLECULES of molocules

A:

Q: 51. Ascorbic acid, or vitamin C (C,H,O), is an essential vitamin. It cannot be stored by the body…

A: Ascorbic acid is C6H8O6 Molar mass of C = 12 g/mol Molar mass of H = 1 g/mol Molar mass of O = 16…

Q: Determine the number of moles in 5.57 × 10²³ formula units of BaBr₂.

A: in one avegadro number is equal to 6.022 × 1023 formula unit.

Q: A patient is having an allergic reaction and takes a 50.0 mg tablet of the over-the-counter…

A:

Q: What’s the molor mass of CaF2

A:

Q: Determine the molar mass for ethanol, C2H6O.

A: Here we are asked to determine the molar mass of ethanol C2H2O

Q: N2 + 3 H2 → 2 NH3 if vou have 1 5 moles ofN. how many moles of NH

A: From the given reaction it has been seen that 1mol of N2 gives 2 mol of NH3.

Q: Calculate the number of moles of C2H6 in 5.41×10^23 molecules of C2H6.

A: 1 mole of substance has 6.022x1023molecules or atoms This particular number is called Avogadro's…

Q: What’s the molar mass of SF6

A:

Q: What is the molar mass of the molecule OF? A. 19 g/mol OF B. 35 g/mol OF C. 46 g/mol OF D. 54 g/mol…

A:

Q: Report Determination of theo Name Yesenia Vicente Student Number Formula of a Compound Lab…

A: To write the net ionic equation, we will:- a)Write the balanced molecular equation b)Write the…

Q: What amout (moles) is represented in 20.0mg caffeine C8 H10 N4 O2

A: The number of moles is the ratio of given mass by molecular mass. It is represented by equation (1),…

Q: what is the mole ratio between: C and CO? C and CS2? SO2 and CO?

A: We need to write a balanced chemical equation first.  After that we can relate the mole ratio. For…

Q: Determine the number of moles in 5.31 × 10²³ formula units of BaBr₂.

A: No of formula units of BaBr2 = 5.31 × 10e23 Number of moles = ?

Q: 27) Determine the number of moles of compound within 25.0 g of AlI(OH), A) 0.321 mol B) 36.03 mol C)…

A:

Q: Calculate the moles of C2H6O in 8.16x10^24 molecules of C2H6O

A: For C2H6O , Number of molecules = 8.16 × 1024

Q: 8 moles of H2. 4 moles of He and 0.5 mole of 02 will have

A:

Q: a. How many grams of magnesium sulfide, MgS, are present in 1.76 moles of this compound? grams b.…

A: Known: The molar mass of MgS is 56.38 g/mol.

Q: How many moles of H,O would be needed to make 2.5 moles of O,? * 2 H,0 – 2H, + 1 O, O 2.0 moles O…

A: The balanced reaction given is, => 2 H2O -----> 2 H2 + 1 O2  Given : Moles of O2 produced =…

Q: Determine the Empirical Formula for each of the following. Use the calculated empirical formula…

A: The mass of elements in the given sample. The mass of H = 0.44 g The mass of o = 6.92 g. The molar…

Q: 3. (NH4)3PO4 a. Calculate it's molar mass b. 57.12g (NH4)3PO4 = mols (NH4)3PO4 %3D c. 0.75 mols…

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

Q: how many moles of F are needed to form 1.4 moles of XeF6?

A: The molecular formula of the compound is given as XeF6  hence we can say that the number of F atoms…

Q: Determine the molar mass of C2H7N.

A:

Q: Freon _12 (ccl2Fe) is used  as a refrigerant in air conditioners and as a proppellant in aerosol…

A: First, the given mass in mg is converted into g. 1g =1000mg 1mg = 1/1000 g Then, 7.56 mg = 0.00756g.

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.