кНCgH404 (аg) + NaOH (aq) — Н20 () + KNaCgHд0д4 (аq) Molar mass of кНСgH404 %3D 204.22 g/mol

Q: It is estimated that we breathe around 5.0 x 1021 molecules of 0, in a single breath. What mass of…

A: Given: Molecules of O2 in a single breath = 5.0 × 1021. Molar mass of O2 = 32 g/mol

Q: A sample contains 3.23 * 10 ^ 25 molecules of CO 2 . What would be the mass of that sample, in…

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Q: 7. Consider the following reaction: 2 NaOH(s) + CO2(g) → Na2CO3(s) + H;O(1) 5.73 g of NaOH are…

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Q: the mass, in grams,

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Q: Given the following balanced chemical equation:                       Zn + 2 HCl → ZnCl2 + H2…

A: Given :-  Zn + 2 HCl → ZnCl2 + H2  Mass of Zn = 25.0 g  Mass of HCl = 17.5 g  To calculate :-  Mass…

Q: A chemist weighs a steel cylinder of compressed oxygen, O2, and finds that it has a mass of 1027.8…

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Q: Elemental analysis is sometimes carried out by combustion of the sample. For a hydrocarbon, the…

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Q: How many moles of Al are necessary to form 52.2 g of AlBr₃ from this reaction

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Q: Consider the reaction of solid P₄ and chlorine gas to form gaseous phosphorus trichloride. The…

A: The reaction given is P₄(s) + 6 Cl₂(g) → 4 PCl₃(g) Given : mass of P4 reacting = 419.7 g

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.