what is the percent composition of bromine in Br2O3?
In the following reaction, if 13g of Sodium are reacted how many grams of Copper (solid) can be obtained? 2Na(s) + Cu(NO3)2 --> 2NaNO3 + Cu(s)
If 100.0 grams of copper (Cu) completely reacts with 25.0 grams of oxygen, how muchcopper(II) oxide (CuO) will form from 140.0grams of copper and excess oxygen?
Chemistry Help, willing to pay!
I know this teeters on unethical, but I am willing to pay for this one!!! Please help. I can do the fill in the blank, but 1-8, 13, and 15 I am lost on!
Please help me with the attached lab
IX. Percent Composition The percent composition by mass of a compound is simply that: the percent by mass of each element in a compound. For an example, let"s consider dimethyl peroxide (CH3O2CH3 or C2H6O2). What is the percent composition of carbon in one mole of dimethyl peroxide?