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2 years ago

What is the pH of a 8.4x10⁻6 M H+solution? What is pH? pH=[?]

1 answer:

7 0

The pH can be obtained directly from the concentration using the formula below pH = - log [H⁺] Hence, pH of a 8.4x10⁻⁶ M H⁺ solution is 5.08.

A figure expressing the acidity or alkalinity of a solution on a logarithmic scale on which 7 is neutral, lower values are more acid and higher values more alkaline.

Taking the negative logarithm of the concentration of hydronium ions that are in the solution:

pH = - log [H⁺]

= - log [8.4x10⁻⁶ ]

= 5.08

Hence, pH of a 8.4x10⁻⁶ M H⁺ solution is 5.08.

Learn more about pH here;

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3 years ago

Which calculation set-up would be correct to determine the volume of concentrated hydrochloric acid (12.0 M HCl) that is require

pishuonlain [190]

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3 years ago

Read 2 more answers

Vanyuwa [196]

Answer:

If the volume of a gas increased from 2 to 6 L while the temperature was held constant, the pressure of the gas decreased by a factor of 3.

Explanation:

Boyle's law that says "The volume occupied by a given gaseous mass at constant temperature is inversely proportional to pressure." This means that if the pressure increases, the volume decreases, while if the pressure decreases, the volume increases.

Boyle's law is expressed mathematically as:

Pressure * Volume = constant

P * V = k

To obtain the proportionality factor k you must make the quotient:

$k=\frac{V2}{V1} =\frac{6 L}{2 L}$

k= 3

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3 years ago

Please help!!! Is it balanced or unbalanced?

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3 years ago

How much copper is present in a cube that measures 3.20cm on each side, if the density of copper is 8.96 g/mL

Ainat [17]

Answer:

290.32 g

Explanation:

First we calculate the volume of the cube:

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Now we convert cubic centimeters to mililiters:

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3 years ago