How many grams of oxygen are in 56 g of c2h2o2?

Answer 1

The molecular weight of ethane (C2H6) is 30.07 so 65.7 g of it would be 2.185 moles. Each mole of ethane burned would yield 2 moles of carbon dioxide - which has a molecular weight of 44.01.

You would get

2 x 2.185 x 44.01 = 96.2 g of carbon dioxide

Note that the statement of burning with excess oxygen is important because it would push the reaction more to completion and limit the formation of carbon monoxide to an insignificant amount.

Answer 2

To determine the amount of grams of oxygen in C2H2O2, we first calculate the molar mass of C2H2O2. This equals 12.012 + 1.012 + 16.00*2 = 58.08 g/mol. Since the molar mass of oxygen is 16.00 g/mol, there are 16.00 g of oxygen in 58.08 g of C2H2O2. Therefore, in 56 g of C2H2O2, there are (16.00/58.08) * 56 = 15.47 grams of oxygen.

Answer 3

C2H202 refers to multiple chemicals of the same molecular formula. That being said the molecule has a weight of 58.04 grams per mole. For every 1 mole of C2H2O2 we have 2 moles of oxygen (O), a ratio of 1:2. In this problem we are given a quantity of 65 grams, or 1.1 moles of C2H2O2. Therefore, this also gives us 2.2 moles of O through the molar ratio. 2.2 moles of O thus equals 35 grams. (O has weight of 16.00 grams per mole).

Answer 4

2x12+2x1+2x16=58

32(o2)/58(total amu)= .55

.55x65(# of grams of substacnce)=35 g of o

Answer 5

If your question is " how many moles of oxygen are in 65.06 grams?" we should consider the gas O2 which has an atom/mol weight of 16 grams: 65.06/16= 4.06625 moles

Answer 6

C2H2O2 has a molar mass of 58.0361 grams per mol. There are then 1.12 moles of glyoxal. There is then 1.12 moles of O2 as well, which equates to 35.838 grams.

Answer 7

8.76g of O2

Answer 8

You need 215,2 g oxygen.

Answer 9

31

Answer 10

the answer is 192g