How many grams of CO2 gas would occupy 25.7 L of volume at a temperature of –22.2C and a pressure of 997 mm Hg?

(Please show work it would help a lot!)

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present

Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3 -> a2cr(no3)3 + a3ag2so4

Classify this reaction: 2al+n2-> aln.