How many grams of Al(OH)3, (molar mass = 78.0 g/mol) can be produced from the reaction of 576 g KOH with excess Al2(SO4)3? What is the percent yield if 225 g Al(OH)3 is produced?
Al2(SO4)3 +6KOH ---> 2Al(OH)3 + 3K2SO4

Zoe is investigating the composition of substance a, an unknown substance. using chemical processes, she analyzes substance a and determines it is composed of sodium, oxygen, and hydrogen atoms in a ratio of 1 : 1 : 1. what is substance a? a. a compound b. an element c. a heterogeneous mixture d. a homogeneous mixture

Which compound should undergo substitution of the bromine by phenolate anion? draw the structure of the organic product?

All of the following describe uses of nonrenewable energy sources except