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Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.
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Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.
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