What quantity in moles of CH₃OH are there in 150.0 mL of 0.210 M CH₃OH?

What quantity in moles of LiBr are in 77.0 grams of LiBr?

A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed through combustion analysis and yielded 2.224 g of CO₂ and 0.3035 g of H₂O. What is the compound’s empirical formula?

A 1.000 g sample of an unknown compound containing only carbon, hydrogen, and oxygen was analyzed through combustion analysis and yielded 2.224 g of CO₂ and 0.3035 g of H₂O. What is the compound’s empirical formula?

Convert -115.1 °C to K. (Just put the number and no units.)

What is the mass in grams of CO₂ that can be produced from the combustion of 2.76 moles of butane according to this equation:  

Consider A = {5, 15, 50}, B = {g, h}, C = {n, m} and D = ∅ a) Is B × C equal to C × B? List all the elements for both.b) What is the cardinality of C3 c) What is the cardinality of P (C × B)? d) Write the Cartesian product C × A × B as ordered triples.

What mass of Zn (in g) would be required to completely react with 1.40 L of 0.750 M HBr in the following chemical reaction?  

Which one of the following would NOT form a precipitate with Ag⁺ in solution?

a) Construct a prefix tree for the following characters and their binary codes: a: 0 b: 10 c: 110 d: 111 b) Use the tree to decode the binary sequence 1110100. c) Encode the words: “bad”, “cada”