While working on a ph lab, alex spilled strong acid all over the table. what should alex's first step be to remedy this problem?

a) inform his teacher.
b) wipe it up with a paper towel.
c) light it on fire to burn it off the table.
d) mix it with a base and wipe it with a cloth rag.

650.j is the same amount of energy as? 2720cal1550cal650.cal2.72cal

Ascientist measures the speed of sound in a monatomic gas to be 449 m/s at 20∘c. what is the molar mass of this gas?

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.