3 years ago

Raising the concentration of hydronium ions, H3O+, in a solution will result in the pH level _________.

Chemistry

1 answer:

algol [13]3 years ago

3 0

Answer:B) Going Down

Explanation:

The higher the concentration of hydro in ions in a solution, the more acidic it is, and the lower the pH is.

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A common radio wavelength observed coming from astronomical objects is 21 cm. What temperature is associated with this radiation

qaws [65]

Answer:

The temperature associated with this radiation is 0.014K.

Explanation:

If we assume that the astronomical object behaves as a black body, the relation between its <em>wavelength</em> and <em>temperature</em> is given by Wien's displacement law.

$\lambda_{max}=\frac{b}{T}$

where,

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$T=\frac{b}{\lambda _{max} } = \frac{2.89 \times 10^{-3} m.K }{0.21m} =0.014K$

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3 years ago

Determine the rate of a reaction that follows the rate law:

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Answer:

k= 1.5

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[B] = 3 M

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rate = k[A]”[B]"

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