erincadeKimberry erincadeKimberry

04-07-2016
Chemistry

contestada

a mole of carbon dioxide (co2) has 12.0 grams of carbon (c) and 32.0 grams of oxygen (o). what is the percent composition of carbon in carbon dioxide?

Respuesta :

daniel987 daniel987

08-07-2016

the moles of the elements need to calculated first
C = 12 / 12 = 1
02 = 32 / 16 = 2
then...
%composition of carbon = 100 x (1/2)
% composition of carbon = 50%
hope that helps

Answer Link

Otras preguntas

A certain test is worth 155 points. How many points (rounded to the nearest point) are needed to obtain a score of 65%?

Determine the half-life of potassium if in 3460 years a 200 g sample decayed into 25 g

In what respect does an atom of magnesium differ from a magnesium ion (Mg^{2+})? (A)The ion has a more stable electronic arrangement than the atom. (B)The pos

what describes the solvent in any solution

Why was there growing involvement of the USA in Europe in the years 1945-48 ??

what is perpendicular to y= 3x -9 and passes through the point (3,1)

what percentage of 1457 is 898?

Genetic crosses Question:A brown coat is dominant to a white coat in cattle. A farmer has a brown bull. How would you determine whether the bull is a heteroz

Yolanda owns 4 rabbits. She expects the number of rabbits to double every year.a) after how many years will she have 64 rabbits?b) write and equation to model t

Factor completely, the expression: 2x^3-2x^2-12x