How many grams of water are produced from the reaction of 40.3 g of oxygen according to this equation? 2h2(g) + o2(g) → 2h2o(g)?

Question

12-05-2018
Chemistry

contestada

How many grams of water are produced from the reaction of 40.3 g of oxygen according to this equation? 2h2(g) + o2(g) → 2h2o(g)?

Respuesta :

Otras preguntas

Jerome, Kevin, and Seth shared a submarine sandwich. Jerome ate 1/2 of the sandwich, Kevin ate 1/3 of the sandwich, and Seth ate the rest. What is the ratio of

If the sales tax on a $30 item is $1.80, what is the sales tax rate?

What is the degree measure of the acute angle formed by the hands of a 12-hour clock that reads exactly 1 o’clock? A. 15° B. 30° C. 45° D. 60° E. 72°

For 2 consecutive integers, the result of adding the smaller integer and triple the larger integer is 79. What are the 2 integers? A. 18, 19 B. 19, 20 C. 20, 21

What is the probability that a number selected at random from the set {2, 3, 7, 12, 15, 22, 72, 108} will be divisible by both 2 and 3 ? F. 1/4 G. 3/8 H. 3/5 J.

Solve and simplify: 2/3 x 3/5 x 5/10 x 6/8 = A: 1/5 B: 1/2 C: 3/20 D: 1/4

Which one of the following expressions has an even integer value for all integers a and c ? F. 8a + 2ac G. 3a + 3c H. 2a + c J. a + 2c K. ac + a^2

A particular circle in the standard (x,y) coordinate plane has an equation of (x − 5)^2 + y^2 = 38. What are the radius of the circle, in coordinate units, and

If x = -5, then |x - 7| = A: -12 B: 2 C: 12 D: -2

blahblahmali blahblahmali · Answer 1 · 2018-05-21T13:06:02+02:00

the balanced equation for the above reaction is as follows;
2H₂ + O₂ --> 2H₂O
stoichiometry of O₂ to H₂O is 1:2
number of O₂ moles reacted - 40.3 g / 32 g/mol = 1.26 mol
according to molar ratio
number of water moles produced = 2 x number of O₂ moles reacted
number of water moles formed - 1.26 x 2 = 2.52 mol
mass of water produced = 2.52 mol x 18 g/mol = 45.4 g
45.4 g of water produced