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

Modern readers are well aware that “A Modest Proposal” is ironic, but how do you think readers knew this in 1729? Where in the text does Swift (as author) revea

Determine the value of each expression. Expression (-5)-4= 6-(-2)= (-3)(-7)=

Solve with substitution Y=x+6. Y=-2x-3

A teacher offers her students 5 fake dollars to spend in the class store, when they get a perfect score on their math tests. If one of her students gets a perfe

A new wonder diet that results in a dramatic weight loss sweeps through the United States. The key to the diet is to eat large amounts of red meat (beef) but no

Negative one minus negative one

The table shows the values of a function f(x). What is the average rate of change of f(x) from −2 to 2? xf(x) −225 −124 021 116 29 30 Enter your answer in t

Compounds that prevent oxygen from combining with other substances it might damage are known as: a) Antioxidants b) Catalysts c) Inhibitors d) Activators

What it the tone of article 1 in 1868 South Carolina constitution how can I write a claim about the tone

3 4 6 13 16 19 ◄)) and Submit have a sum of 25