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masha68 [24]
4 years ago
10

Count the total number of atoms in sio2:

Chemistry
1 answer:
grigory [225]4 years ago
8 0
Atoms are the basic units of matter and the defining structure of elements. We count the number of atoms by the total number of elements present in the compound. In this case, we have 1 atom of Si and 2 atoms of oxygen which would have 3 total number of atoms.
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Hippuric acid (HC9H8NO3)(HC9H8NO3), found in horse urine, has pKa=3.62pKa=3.62. Part A Calculate the pHpH in 0.140 MM hippuric a
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HC_9H_8NO_3\rightleftharpoons C_9H_8NO_{3}^-+H^+

Initially

c           0     0

At equilibrium

(c-x)     x      x

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Dissociation constant of an acid is given by:

K_a=\frac{[C_9H_8NO_{3}^-][H^+]}{[HC_9H_8NO_{3}]}

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pH=-\log[0.005677 M]=2.246\approx 2.2

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