How many moles of LiN3 are present in 7.56 grams of LiN3

Q: How many Mg2+ ions are present in 0.500 g of magnesium phosphate?

A: Magnesium phosphate = Mg3(PO4)2 Molar mass(MM) = 262  g Mass of Mg3(PO4)2 = 0.500 g Moles of…

Q: How many moles of Kr are contained in 398mg of Kr?

A: Given Mass of the  kr=398mg    convert  into g =398mg1000=398×10-3 mgatomic mass of the…

Q: Heart disease is linked to high blood cholesterollevels. What is the percent composition of…

A: Percentage composition of each element defines the amount of that particular element present with…

Q: How many moles of C are present in 2.90 moles of naproxen

A: We have to find the number of carbon moles in 2.90 moles of naproxen.The chemical formula of…

Q: How many grams of Magnesium would be in a sample of 7g MgO

A: Magnesium Oxide = MgO given mass of MgO = 7 g Molar mass of MgO = 40.3044 g/mol Molar mass Mg =…

Q: what is the mass of 3.65 moles of sodium bicarbonate?

A: To identify the substance, it is defined as not only by the types of atoms or ions it have, but the…

Q: How many moles of NH3 are present in 4.98 g of the compound?

A:

Q: a 50.0 g sample of lead oxide PbO2 contains how many moles?

A:

Q: How many moles are in 33.1 g of SO3? How many molecules does it contain?

A: Amount of SO3 given = 33.1 g Moles Of SO3  = To be determined No of Molecules of SO3 = To be…

Q: How many moles of Fe, O, are in 171 g of the compound? number of moles:

A: We have to know that moles of any element or compound or molecule is defined as mass of that…

Q: How many molecules are present in 2.47 moles of Sodium Carbonate?

A: The entity (molecules/atoms/ions) present in a specific quantity (mole) is regarded as "Avogadro…

Q: How many moles of S are in 23.2 g of (C3H5)2S

A: Number of moles of (C3H5)2S is determined as follows,

Q: How many moles of Cu are there in 36.2 grams of Cu ? moles

A: Given : Mass of copper = 36.2g

Q: A sample contains 27.1 g of calcium oxide. How many moles of calcium oxide are in the sample? (Ca =…

A: Given datas ;  Mass of CaO = 27.1 g  Molar mass of Ca = 40  Molar mass of O = 16  So ,  Molar mass…

Q: How many moles of O are present in 7.89 g of acetic acid?

A: In  1 mole of acetic acid there are  2 moles of oxygen,              CH3COOH = 12 + 3*1 + 12+ 2*16+…

Q: How many grams of NaCl are in 35.6 moles of NaCl?

A: Given : moles of NaCl = 35.6 mol

Q: How many moles of Nal are in 58.5 grams of Nal

A:

Q: Calculate the moles of copper in a 14.31 g sample of copper.

A: Molar mass of Cu = 63.5 g/mol Given mass of Cu = 14.31 g   Moles of Cu = given mass of Cu molar mass…

Q: Total moles of magnesium

A: We have to find moles of Magnesium

Q: What is the mass of 3.50 moles of NH3

A: The relation between mass and mole is given by the formula - mole = mass / molar mass so, mass =…

Q: How many N2 molecules are in 473.2 grams of N2?

A: Given that   Amount of Nitrogen gas N2 = 473.2 grams The molar mass of Nitrogen N2 = 28 gm/mol To…

Q: How many moles of allicinare present in 5.00 mg of this substance?

A: Allicin is a chemical compound that characteristic smell of garlic. The chemical formula of allicin…

Q: How many hydrogen atoms are in 23.7 g of water

A:

Q: How many moles of lithium phosphate (Li3PO4) are contained in 77.7 g of lithium phosphate?

A: We will use the formula: Number of moles = Given mass/Molar mass

Q: How many moles of (NH4)3PO4 are contained in 0.917 g of this compound?

A: Given that: Mass of (NH4)3PO4 = 0.917g Moles of (NH4)3PO4 = ?

Q: A chemical reaction was used to produce 1.61 moles of copper (II) bicarbonate, Cu(HCO3)2. What mass…

A: Given data:

Q: How many grams of water (18.02 g/mol) would contain 6.54 x 1024 hydrogen atoms

A: Avogadro number = 6.022 x 1023.

Q: how many moles of Kr are contained in 398 mg Kr?

A:

Q: How many molecules are contained in two 270.-mg tablets of petricillin

A: Number of moles = mass/molar mass  1 mol contains 6.022 × 1023 molecules

Q: How many molecules are in 1.5 moles of Ca

A: Number of moles of calcium = 1.5 moles Use Avogadro’s number to find the number of molecules of…

Q: How many chlorine molecules are contained in a 151.34 g sample of chlorine?

A: To know the number of molecules, first we have to know the number of moles. Moles = Given mass /…

Q: How many moles are present in 19.4 g of N2 and 19.4 g of F2?

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

Q: How many grams of carbon are present in 0.75 mole of aluminum carbonate

A:

Q: How many moles of water, H2O, are present in 75.0 g of H2O?

A:

Q: Mg(NO3)2 contains 5.25 moles of Mg. How many moles of O are present?

A: One mole Mg(NO3)2 contain one mole of Mg, two mole N, and six mole O atom...

Q: How many aluminum atoms are in 2.04g of aluminum

A: mass of aluminum = 2.04 gmMolar mass = 26.982 gm/molmoles of Al = mass of Al / Molar mass of Almoles…

Q: How many moles of magnesium phosphate are present in 4.77 grams of this compound?

A:

Q: 7.) How many molecules of H, are present in 7.5 grams of H,?

A: Since there are multiple questions, I am only solving the first one. If you want the other question…

Q: What mass of CCl4 contains 7.0x1026 molecules of CCl4

A:

Q: A sample of Mg(NO3)2 has a mass of 71.5 grams. how many moles of Mg(NO3)2 are in  this sample

A: Number of moles = Mass in gram/Molar mass

Q: How many moles of iron atoms are contained in 5.01 g of iron?

A: The Answer to the following Question is given as:

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 CH4 are contained in 96.0 grams of CH4?

A:

Q: How many moles of NaCl are in 87.1 grams of NaCl?

A: Answer :-  Moles of NaCl present in 87.1 grams of NaCl = 1.5 mol.

Q: How many moles of RbF are in 67.5 grams of RbF?

A: Number of moles = Mass/Molar mass

Q: How many moles of calcium chloride are present in 120. g of calcium chloride?

A:

Q: How many moles of NaCl are in 72.0 grams of NaCl?

A: According to mole concept,Mass of 1 mol of a substance = Molar mass of substanceMolar mass of NaCl =…

Q: number of moles

A:

Q: 2. How many MOLES of chlorine are present in 3.74 grams of su dichloride? moles

A: moles of sulfur dichloride=3.74g102.97g/mole=0.036 moles

Q: B. How many number Na* ions in 3 g of Na3PO4?

A: Given, The mass of Na3PO4 = 3g Note: one mole (molar mass ) of any substance contains Avogadro…

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.