Szopaklna Szopaklna

02-11-2016
Chemistry

contestada

How many grams of Na20 are produced when 57.5g of Na reacts?
4N+O2->2Na2O

Respuesta :

Willchemistry Willchemistry

03-11-2016

Molar mass:

Na₂O = 61.97 g/mol
Na = 22.98 g/mol

4 Na + O₂ = 2 Na₂O

4 x 22.98 g Na ---------- 2 x 61.97 g Na₂O
57.5 g Na ---------------- ??

Mass of Na₂O = 57.5 x 2 x 61.97 / 4 x 22.98

Mass of Na₂O = 7126.55 / 91.92

=> 77.53 g of Na₂O

Answer Link

Otras preguntas

describe the weather associated with a high presurre system

(3x + 2) ( x-2) Simplify expressions? 2/3 x 1/8 ? or 3 3/4 divided by 1 1/2 how do u simplify?

divide 85 into the ratio of 2:3:5

Which of the following is a program used to prevent computer viruses from infecting a computer? a. McAfee b. Mozilla Firefox c. Safari d. Windows Defender

In miles, what is the approximate distance between the southern tip of South America and the southern tip of Africa?

Publix has a 12 oz. box of Cheerios for $3.49. What is the unit rate per ounce?

Multiply ($728.00) * (6.2%) and round to the nearest cent. (Include the correct units.)

How do you increase kinetic energy of an apple

Danica wants to arrange her model cars in rows with exactly 6 cars in each row. She now has 23 model cars. What is the smallest number of additional cars she mu

round all the way 2689