PLEASSE HELP! 78.5 g of Carbon dioxide gas fills a container that is 1.2 L. What is the pressure of the gas in this container if the temperature of the gas is 45.1 degrees Celsius? Remember, you can't use temp. in degrees Celsius and you need moles, not mass in grams so convert!!!

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

How many molecules are in 6.0 moles of methane