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m_a_m_a [10]
3 years ago
15

Show that an aqueous solution with a pH of 5 has a hydroxide ionconcentration of 1×10^9M​

Physics
1 answer:
vekshin13 years ago
5 0

Explanation:

pH + pOH = 14

5 + pOH = 14

pOH = 9

pOH = -log([OH⁻])

9 = -log([OH⁻])

-9 = log([OH⁻])

1×10⁻⁹ = [OH⁻]

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We have: v = d/t
From the expression, we conclude speed is indirectly proportional to speed.
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3 years ago
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A black lift of amber is placed in water and a laser beam travels from the water through the amber. The angle of incidence is 35
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Answer:

Explanation:

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3 years ago
A moving roller coaster speeds up with constant acceleration for 2.3s until it reaches a velocity of 35m/s. During this time, th
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Hope this answer helps: option B

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3 years ago
Which pair of objects would have the LEAST gravitational attraction to each other?
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3 years ago
It has been suggested, and not facetiously, that life might have originated on Mars and been carried to Earth when a meteor hit
damaskus [11]

Answer:

a=3125000 m/s^2\\a=3.125*10^6 m/s^2

Acceleration, in m/s, of such a rock fragment = 3.125*10^6m/s^2

Explanation:

According to Newton's Third Equation of motion

V_f^2-V_i^2=2as

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In our case:

V_f=V_{escape},  V_i=0,s=4 m

So Equation will become:

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Acceleration, in m/s, of such a rock fragment = 3.125*10^6m/s^2

5 0
3 years ago
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