General Chemistry Answers

2 C₂H_6(g)          +        2 O_2(g) =  CO_2(g)    +        2 H₂O_(I)

1.   How many grams of H₂O will be produced by 58.2 L of CH₄ at STP? Assume an excess of O₂.

An aqueous solution of NaOH can dissolve an aluminum sheet in the reaction: 2 Al + 2 NaOH + 2H2O -> 2 NaAlO2 + 3H2 if 126.4 of NaOH is 97.7 g of Al are made to react

a. How many moles of NaAlO2 is produced if 126.4 g of NaOH reacts completely?

b. how many grams of NaAlO2 is produced using thesame amount of NaOH?

c. How many grams of the excess reagent is left?

d. which reactant is the limiting reagent?

one side of a cube is 3cm. Find its density and specific gravity if its mass is 10 grams. Determine if derived or fundamental. Write them in scientific notation and in decimal form.

Enter a balanced complete ionic equation for the reaction

HCl(aq)+NaOH(aq)→

HCl(aq)+NaOH(aq)→

Express your answer as a chemical equation including phases.

A student measures out exactly 0.1040

0.1040 g of salicylic acid and carries out an aspirin synthesis using salicylic acid, acetic anhydride, heat, and an acid catalyst. Salicylic acid is the limiting reagent in this reaction, which yields 0.0870

0.0870 g of aspirin. What is the percent yield for the reaction?

Calculate the number of Li+ ions in 8.12g Li3PO4

Consider the reaction 2KClO3 ( 2KCl + 3O2. How many g KClO3 will be formed from 4.5 moles O2 reacting with enough KCl?

A solution is made by dissolving 1.25 grams of Na2SO4 in 65.0 grams of water. What is the mole fraction of solute?