What is the mass percentage of C in C₂H6?

Q: 2.350g of CuSO4·nH2O was heated to produce 1.502 g of anhydrous CuSO4.   Calculate the moles of…

A: CuSO4·nH2O (s) + Heat →CuSO4 (s) + nH2O  Mass of hydrate (CuSO4·nH2O), mbefore heating = 2.350 g…

Q: (a) Calculate the molar mass of ammonium nitrate, NH4NO3. (b) What is the mass percent of nitrogen…

A: (a) Molar mass of a molecule = sum of atomic masses of all the constituent elements      Molar mass…

Q: If a sample of B10H12[N(CH3)3]2 is found to contain 7.25 · 1019 B atoms how many moles of…

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Q: What is the mass (in kg) of 6.89 x 1025 molecules of CO2?  The molar mass of CO2is 44.01 g/mol.

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Q: Phosphorus may be determined analytically by precipitating it as MgNH4PO4 followed by ignition to…

A: Given data: Mass of sample of phosphate rock = 9.346 gms It contains 71.24% of Ca3(PO4)2 So, mass of…

Q: What is the mass in grams of 4.57 × 10¹⁵ molecules of CO₂?

A: is a molecule which is made up of three atoms carbon and two oxygens. One mole of contains…

Q: Determined the mass percentage of hydrogen in CH4 and C4H10?

A: Molar mass is defined as average mass of atoms present in the chemical formula. It is the sum of the…

Q: Starting with the following equation, Fe2O3(s) + C(s) --> Fe(l) + CO2(g) calculate the mass in…

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Q: A sample of unknown hydrate, AC·XH2O, has a mass of 1.000 g before heating and a mass of 0.781 g…

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Q: If you place 7.05 g of aluminum in a beaker with 185 mL of 1.35 M KOH, what mass of KAl(OH)4 is…

A: If 7.05 g of aluminum in a beaker is treated with 185 mL of 1.35 M KOH, the mass of KAl(OH)4 that is…

Q: What

A: Given, The molecules of N2O = 1.37 x 1017 The mass of nitrogen atom has to be calculated.

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.