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Which element has atoms with average mass about 5 times those of the average oxygen atom?.
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Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
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At stp, which substance is the best conductor of electricity? a. nitrogen b. neon c. sulfur d. silver
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Which element has atoms with average mass about 5 times those of the average oxygen atom?....
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