Question

Calculate the mass of the 5 × 10^23 molecules of glucose.

Dont anyone dare to spamm this question !​

Answer 1

Answer:

$9* 10^{25} g/mol$

Explanation:

Glucose is $C_{6} H_{12} O_{6}$ So, molecular mass of ! molecule of such glucose is = ⇒ 6(12)+ 12(1) +6(16) = 180 g/mol.

We are required to find mass of 5x$10^{22}$ molecules, which should be,

⇒ 5x$10^{22}$ * 180 = $9* 10^{25} g/mol$

Kudos!

Answer 2

Answer:

5×10²³ molecules.

Explanation:

• The mole idea is a useful way to indicate how much of a substance there is.
• Any measurement can be divided into two components: the magnitude in numbers and the units in which the magnitude is expressed.
• For instance, the magnitude is "2" and the unit is "kilogram" when a ball's mass is determined to be 2 kilograms.

• Mass of 1 mole of glucose = 180g/mol.
• 1 mole = 6.022×10²³ molecules.
• 6.022 molecules = 180g/mol of glucose.
• 5×10²³ molecules = (180÷6.022×10²³) × 5×10²³ = 150g

Hence, 150 g glucose is present in 5×10²³ molecules.

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