Chemistry, 25.09.2021 21:00 aliozochika
a block of platinum 6.00 cm long, 3.50 cm wide and 4.00 cm thick has a mass of 1802 g. what is the density of platinum?
Answers: 1
Chemistry, 22.06.2019 00:30
The clouds are grey and ground is wet. a quantitative b qualitative
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Chemistry, 22.06.2019 18:00
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 09:20
Due tomorrow which would have a lower ph, a 0.1 m solution of a strong base or a weak base? why? which would have a higher ph, a 0.1 m solution of a strong base or a weak base? why?
Answers: 3
a block of platinum 6.00 cm long, 3.50 cm wide and 4.00 cm thick has a mass of 1802 g. what is the d...
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