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Marble is not a definite chemical compound; a calcium or magnesium carbonate with impurities.
One mole of a chemical compound has 6,02214179(30)×1023
elementary entities.
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Will 1 mol of sugar have the same effect as 1 mol of table salt in lowering the freezing point of water?
no because the mol of sugar is 34 g while salt's mol is 5.8 grams
What is the mass of BeC2O4 if 3.21g of BeC2O4-3H2O is heated to 220 degrees Celsius?
BeC2O4 = 97.0 g/1 mol BeC2O4-3H2O = 151.0 g/1 mol 3.21 g BeC2O4-3H2O * 1 mol/151.0 g = 0.021258 mol BeC2O4-3H2O 0.021258 mol BeC2O4-3H2O * 97.0 g/1 mol = 2.06 g BeC2O4
What is the amount of CO2 produced on burning 12g of carbon in air is?
44 grams of CO2 (1 mol CO2 from 1 mol C if enough oxygen, air, is available)
How many moles of N 2 reacted if 0.50 mol of NH 3 is produced?
First make the reaction equation balanced for N-atoms (co-existant in both formula)N2O5 + H2O --> 2 HNO3So 1.02 mole HNO3 is produced from:1.02 x 1 (N per HNO3) / 2 (N per N2O5) = 0.51 mol N2O5
How many moles are in 291.68 grams of hydrochloric acid?
To calculate moles of HCl in 291.68 grams, use the molar mass of HCl which is 1 + 35.5 = 36.5g/mole. 291.68 g x 1 mol/36.5 g = 7.99 moles HCl (3 sig figs)
How many molecules are in 3.4 moles?
(3.4 mol / 1) * (6.022 x 1023 particles / 1 mol) = 2.04748 x 1024 particles.
How many particles are in 1 mole of carbon?
Number of particles = number of mol x avogadro constant = 1 x 6.02 x 1023
How many particles are present in 1 mol of a pure substance?
One mol of a pure substance contains 6.0221367 x 10^23 particles according to Avogadro's number.
How do you convert no of moles to no of particles?
(desired moles)(6.02x1023part/1 mol)=answer
How many particles are in 1.57 moles of substance?
In one mole of a substance, there are 6.022 x 1023 particles. So, 1.57 moles x (6.022 x 1023 particles/1 mol) = 9.45 x 1023 particles.
Convert mmol to mol?
1 mEq=1 mmol/valence e.g.For sodium, 1 mEq=1mmol/1 (valence of sodium=1) means, 1 mmol sodium=1 mEq of sodium take for calcium,valence=2 1 1 mEq of calcium=1mmol/2=0.5 mmol of calcium
How many atoms of oxygen are in 3.33 grams of magnesium hydroxide?
first work out how many moles of Mg(OH)2 you have. n = m /M = 3.33 / 58 = 0.0574 mol Then from this work out how many mol of O you have. there are two oxygens in the formula so you have 0.0574 x 2 mol of O = 0.1148 mol 1 mol = 6.023x 1023 particles. So 6.023 x 10 23 /1 x 0.1148 = 6.92 x 10 22
How many representative particles are in 4.51 g of a molecular compound with a molar mass of 273 grams?
4.51 g x 1 mol x 6.022 x 1023 molecules = 9.95 x 1021 molecules .............273 g ............... 1 mol
How many atoms are in 1 mole of zinc atoms?
3 moles of Zn is equal to 18.09x1023 atoms. I used Avogadro's Number : 6.03x1023 particles/mol This number is the number of atoms or molecules in a mol of any substance. 3 moles X 6.03x1023 particles/mol = 18.09x1023 atoms
How many gram of water is equal to 2.2 mol of water?
2.2 mol water = 2.2 (mol) * 18 (g/mol) water = 39.6 (mol*g/mol) = 40 g18 g/mol = mol mass of H2O = 2*H + 1*O = (2*1 + 16) g/mol
How many mol of water will be produced from combining 4.85 mol of oxygen with excess hydrogen?
Exactly the same number of mols. 1 mol of oxigen atoms produces 1 mol of water molecules.
How many moles of Al are needed to form 2.43 mol of Al2Br6?
(2.43 mol Al2Br6)*(2 mol Al/ 1 mol Al2Br6)= 4.86 mol Al
