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Aleks [24]
1 year ago
9

121) The sugar sucrose has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen

Chemistry
1 answer:
mart [117]1 year ago
4 0

Answer:

Explanation:

121) The sugar sucrose has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen

atoms. How would this be written?

A) Co12H22O1  [Co is cobalt]

<u><em>B) CI2H22011</em></u>     [Yes]

C) C6H1206       [6 C atoms]

D) CacH1206     [Ca is calcium]

122) How are the elements organized on the periodic table?

A) Atomic Mass  [Yes, from lightest to heaviest]

B) Element Name

C) Symbol

D) No Set Organization

123) Which of the following elements would be considered a compound?

A) CH     [Yes, two or more elements combined]

B) Si       [No]

C)F         [No]

D) O6     [No, multiple atoms, but same element]

124) The formula for water is H2O meaning there are 2 Hydrogen atoms and 1

Oxygen. What is the atomic mass of one molecule to the nearest hundredth?

A) 15.99  

B) 16.99

C) 17.99     [Yes, 16 + 2*1 = 18]

D) 18.99

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2 years ago
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The molecular formula of the compound is C12H15O3 hence the molar mass of the compound is 207 g/mol.

We need to obtain the number of moles of carbon, hydrogen and oxygen in the compound;

Carbon = 24.91 g/44g/mol × 1 mole of carbon = 0.566 moles

Mass of carbon =  0.566 moles × 12 g/mol = 6.792 g

Number of moles of hydrogen = 6.522 g/18 g/mol × 2 moles = 0.725 moles

Mass of hydrogen = 0.725 moles  × 1 g/mol = 0.725 g

Mass of oxygen = 10 - (6.792 g + 0.725 g) = 2.483 g

Number of moles of oxygen = 2.483 g/16 g/mol = 0.155 moles

Now we must divide through by the lowest number of moles;

C - 0.566/0.155   H - 0.725/0.155     O - 0.155/0.155

C - 4                    H - 5                        O - 1

The simplest formula is C4H5O Recall that the molar mass of the compound lies between 150.0 and 220.0 g/mol

4(12) + 5(1) + 16 = 69

Hence; n = 3 and the molecular formula of the compound is C12H15O3

The molar mass of the compound is; 12(12) + 15(1) + 3(16) = 207 g/mol

Learn more: brainly.com/question/15180604

3 0
2 years ago
Human blood consists of blood groups A, B, and O. However, there is one more blood group, AB, which contains alleles A and B in
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It is codominant inheritance because, if the placement of the A and B molecules on each cell is controlled by the proteins that are coded by different versions of the same gene, then <span>IA and IB </span><span>are codominant but both are dominant to I<span>o</span>. If a person receives an <span>IA </span>allele and a <span>IB</span> allele, their blood type is type AB, in which characteristics of both A and B antigens are expressed.
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Joy mixes one cup of sugar and one cup of lemon juice into three cups of water. The solvent in this recipe is the?
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