Question

How many grams of c6h12o6 are in 1. 90 x 1022 molecules of c6h12o6? the molar mass of c6h12o6 is 180. 0 g/mol. avogadro's number is 6. 02 x 1023

Answer 1

5.6 × 10⁻³ g/mol of C₆H₁₂O₆ are in 1. 90 x 10²² molecules.

The mass per unit amount of a certain chemical entity is known as the molar mass (symbol M, SI unit kgmol1). The chemical entity in question should always be identified in accordance with the mole definition.

The number of atoms present in 1 mole of hydrogen is equal to  6.02 × 10²³ known as Avogadro’s number (NA).

The units of molar mass follow its definition; grams per mole. Mathematically, the defining equation of molar mass is

                         Molar mass = mass/mole = g/mol

180g/mol glucose has = 6.02 × 10²³

x g/mol glucose has = 1.90 × 10 ²²

To find x;

$x = \frac{180.0 * 1.90 * 10^2^2}{6.02 * 10^2^3}$

x = 5.6 × 10⁻³ g/mol

Therefore,  5.6 × 10⁻³ g/mol of C₆H₁₂O₆ are in 1. 90 x 10²² molecules.

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