Characterize EACH of the three given statements as being TRUE or FALSE and then indicate the collective true-false status of the statements using the choices: (1) Avogadro's number is part of the conversion factor needed to solve a "moles of A to grams of A" problem.
(2) The sum of the coefficients in the balanced equation for the production of water from hydrogen gas and oxygen gas is five.
(3) 2.00 moles of NH₃ molecules have a mass of 34.0 grams.

Question

Quizplus · Accepted Answer

(1) TRUE - Avogadro's number (6.02 x 10^23) is part of the conversion factor needed to solve a "moles of A to grams of A" problem. (2) TRUE - The balanced equation for the production of water from hydrogen gas and oxygen gas is: 2H2 + O2 → 2H2O, which means the sum of the coefficients (2+1+2=5) is five. (3) FALSE - There is no such molecule as NH₃, so this statement is false.

Characterize EACH of the Three Given Statements as Being TRUE