Consider the following problem:

"ammonia, nh3, is used as a fertilizer and as a refrigerant. what is the new pressure if 5 moles of ammonia with a volume of 750 ml at 1.50 atm is expanded to 7.50 l at constant temperature? "

in solving this with the ideal gas law, which r value will you use?

a. 8.31 l * kpa / k * mol
b. 0.0821 l * atm / k * mol
c. it doesn't matter which i choose for this problem, either of them will produce a correct answer.

c.

Explanation:

The difference between the two is the measure of pressure. Atm (atmospheres) or kPa (kilopascals) both are measures of pressure. If we convert 8.31 kPa to atm, we get 0.0821 atm, hence both R values are the same and life is good.

quartz

explanation:

answer:

the reaction is type of combination reaction.

explanation:

on the product side, there are 2 molecules of bonded to fe   which means one atom of fe are combined two molecules of . so, balanced chemical equation becomes :

this reaction follows the reaction type of combination reaction. a combination reaction is defined as chemical reaction in which reactants combines together to form a single product.