Chemistry ! 15 points! heterogeneous catalysts convert harmful gases involved in running a car to harmless ones in a car's a. muffler b. carburetor c. tail pipe d. catalytic converter

Agas is contained in a thick walled balloon when the pressure changes from 1.21 atm to 2.52 the volume changes from 3.75 l to 1.72 l and the temperature change from 293k to blank k

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.