Molarity of NaOH: From the following data calculate molarity of NaOH. Molar mass of KHP is 204.23 g/mol. Show calculation. Mass of Erlenmeyer flask + KHP 84.847 g Mass of Erlenmeyer flask 84.347 g Mass of KHP ??? Final buret reading 12.25 mL Initial buret reading 0.50 mL Volume of NaOH added ???

Explanation:

Mass of Erlenmeyer flask + KHP =  84.847 g

Mass of Erlenmeyer flask  = 84.347 g

Mass of KHP = .5 g

moles of KHP = .5 / 204.23

= 2.448 x 10⁻³ moles

moles of NaOH reacted = 2.448 x 10⁻³

Final buret reading =  12.25 mL

Initial buret reading = 0.50 mL

Volume of NaOH added=

burning wood be a chemical change because it wouldn’t be able to go back to its original form. A physical change would be a broken pencil. The pencil is still a pencil, it’s just a physical change.But if it were burned it would be a chemical change.

Explanation: