Chemistry, 13.03.2020 01:02 miayadeliss6910
Copper (Cu) pellets with a mass of 2.74E+1 g at 9.955E+1 °C are placed in a constant pressure calorimeter of negligible heat capacity containing 1.18E+2 mL of water. The temperature of the water rises from 2.16E+1 °C to 2.34E+1 °C. What is the specific heat capacity of the copper pellets?
Answers: 3
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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.
Answers: 3
Chemistry, 23.06.2019 03:00, makayyafreeman
Select the correct answer. wax is a nonpolar substance. in which type of substance is it the most soluble?
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Copper (Cu) pellets with a mass of 2.74E+1 g at 9.955E+1 °C are placed in a constant pressure calori...
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