Chemistry, 25.08.2021 18:30 helpmepeeeeease
What is m∠PTQ? Line segment PS and QR crosses each other at the point T. The angle PTQ is (x + 28) degree. The angle RTS is (2x + 16) degree.
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the mississippians were considered to be horticulturalists, which means they were
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Calculate the frequency of a wave in a spring toy. the wave has a speed of 1.1 meters per second and a wavelength of 0.1 meters. *
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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
What is m∠PTQ?
Line segment PS and QR crosses each other at the point T. The angle PTQ is (x + 28)...
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