Calculate the number of carbon atoms in a 140.0g sample of glucose (C6H12O6) . Be sure your answer has a unit symbol if necessary, and round it to significant digits.

There are 2.81 * 10^24 atoms present

Explanation:

To get this, we need to know the number of moles present in 140gramms of carbon.

Mathematically;

number of moles = mass/molar mass

molar mass of glucose is = 180 g/mol

So the number of moles will be ;

140/180 = 0.7778 mole

1 mole of glucose contains 6 moles of carbon;

so 0.7778 moles will contain = 4.667 moles

Mathematically, the number of atoms in 1 mole is 6.02 * 10^23 atoms

The number of atoms in 4.667 moles will be :

4.667 * 6.02 * 10^23 = 2.81 * 10^24 atoms

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

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explanation:

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