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A sample of sugar (C12H22O11) contains 1.505 × 1023 molecules of sugar. How many moles of sugar are present in the sample?
a. 0.25 mol
b. 0.50 mol
c .1.00 mol
d. 2.50 mol

Respuesta :

Willchemistry
1 mole ------------ 6.02x10²³ molecules
? moles ----------- 1.505x10²³ molecules

(1.505x10²³) x 1 /  ( 6.02  x10²³ ) =

(1.505x10²³) / ( 6.02x10²³ ) =

= 0.25 mol

Answer A

hope this helps!

Answer: Option (a) is correct.

Explanation:

Molecules of sugar given = [tex]1.505 \times 10^{23}[/tex]

According to Avogadro's number it is known that 1 mole contains [tex]6.023 \times 10^{23}[/tex].

Therefore, calculate the moles of sugar present in the sample as follows.

   Number of moles =  [tex]\frac {1.505 \times 10^{23}}{6.023 \times 10^{23}}[/tex]

           = 0.25 mol

Thus, the moles of sugar present in the sample is 0.25 mol.

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