Acetic acid (hc2h3o2) is the active ingredient in vinegar. calculate the mass percent composition of o in acetic acid.
express the mass percent composition to four significant figures.

53.29% of acetic acid is Oxygen

Explanation:

Step 1: Given data

Acetic acid it's molecular formula is HC2H3O2. This means it consists of 3 elements Carbon, Hydrogen and oxygen.

Step 2: the molar masses

The molecular mass of acetic acid is:

4* H = 4* 1.01 g/mole

2* C = 2*12 g/mole

2*O = 2* 16 g/mole

Total molar mass = 4+ 24+32 = 60.052 g/mole

Step 3: Calculate the mass percent

32 g of the 60.052 g is Oxygen

(32/60.052) *100% = 53.29%

53.29% of acetic acid is Oxygen.

The mass percent composition is 53.2852 %

Explanation:

The formula used to calculate the % composition is  

% composition = (mass of the element)/(total mass of the compound) × 100%

Total mass of the compound

= (12.0107 × 2) + (1.0079 × 4) + (15.999 × 2)

= 24.02140 + 4.03176 + 31.99880

= 60.05196 g

Mass of the element, O = 31.99880 g

% composition of O

= (mass of the element) / (total mass of the compound) × 100%

Plugging into the formula

% composition of O

= 53.2852 % (Answer)

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

if it's not useful, feel free to report for mistake in answer.