Chemistry, 10.04.2020 02:02 angelblalock5885
What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C to 70.0°C when 2,520 J of
heat is applied?
Use q=mC. AT
O 0.00420 J/(g•°C)
O 0.00661 J/(g. °C)
238 J/(g. °C)
O 252 J/(g. °C)
Answers: 2
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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
What is the specific heat of a substance if a mass of 10.0 kg increases in temperature from 10.0°C t...
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