In a chemical reaction, substance R reacts with compound XY to produce 47. 0 g of compound RX. If the theoretical yield of RX is 56. 0 g, what is its percent yield? Use Percent yield equals StartFraction actual yield over theoretical yield EndFraction times 100. 9. 00% 16. 1% 83. 9% 119%.

if you mean hydrogen and oxygen then water is the product

answer; the numbers of valence electrons in the acetic acid molecule (ch3co2h) is 24;

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol