saSmahalisTy saSmahalisTy

20-05-2017
Chemistry

contestada

What is the percent by mass of oxygen in al2o3 ?

Respuesta :

chloelewis986 chloelewis986

20-05-2017

mr oxygen= 16. 16 x 3= 48
mr Al2O3= 27 + 27 + 48= 102

(48/102) X 100%= 47.05% oxygen

Answer Link

Otras preguntas

The area of one field is 16 acres, and the area of the second field is 5/4 times bigger. A barn of wheat on the first field makes up 75/2 thousands of pounds p

Use the graph to solve the system of linear equations X-Y=4 4x+y=1

Why did colonists feel the articls of confederation were necessary eben though the declaration of independence was already written

Here are the cash flows for two mutually exclusive projects: Project C0 C1 C2 C3 A −$ 34,400 +$ 13,700 +$ 13,700 +$ 13,700 B − 34,400 0 0 + 43,200 a. At what in

Researcher Thompson and her colleagues found that winners and losers evaluated their own outcomes equally when they did not know how well the other party had do

If the area of a rectangular garden is 45x2−12x square meters, and it has a length of 3x meters, what is its width? 15x−4 45x2−4 15x−12 15x2−4x

The wheels of an automobile are locked as it slides to a stop from an initial speed of 30.0 m/s. If the coefficient of kinetic friction is 0.600 and the road is

On January 1, Jamaica Company purchased equipment for $18,000. The estimated salvage value is $4,000 and the estimated useful life is 5 years. On December 31 o

Assume that you are given the following historical returns for the Market and Security J. Also assume that the expected risk-free rate for the coming year is 4.

A bicycle tire is spinning clockwise at 3.40 rad/s. During a time period Δt = 2.50 s, the tire is stopped and spun in the opposite (counterclockwise) direction,