Chemistry, 02.07.2019 09:30, miko96

Ametallurgist has a 42.0-gram sample of an object of unknown composition. on testing it, the metallurgist finds that it takes 2,878 joules of heat to melt it completely. what is the object's heat of fusion?

Answers: 1

Show answers

Other questions on the subject: Chemistry

Chemistry, 22.06.2019 13:30, Axe15x

Which of the following has wavelength longer than the wavelength of viable light? a) x rays b) gamma rays c) radios waves d) ultraviolet waves

Answers: 1

continue

Chemistry, 22.06.2019 16:00, winnie45

He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98

Answers: 2

continue

Chemistry, 22.06.2019 16:50, TrueKing184

Answer asap need 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.

Answers: 1

continue

Chemistry, 23.06.2019 00:00, familyk0jj3

How do you determine the percent yield of a chemical reaction

Answers: 1

continue

Do you know the correct answer?

Ametallurgist has a 42.0-gram sample of an object of unknown composition. on testing it, the metallu...