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Anestetic [448]
2 years ago
6

What is the pH of a 2.58 x 10^-6 M solution of an acid?

Chemistry
1 answer:
laila [671]2 years ago
7 0

Answer:

<h2>5.59 </h2>

Explanation:

The pH of a solution can be found by using the formula

pH = - log [ {H}^{+} ]

From the question we have

ph =  -  log(2.58 \times  {10}^{ - 6} )  \\  = 5.58838

We have the final answer as

<h3>5.59</h3>

Hope this helps you

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Harlamova29_29 [7]

Answer:

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A pencil is a writing material, where the graphite is what gives the black color to the writing stroke.

5 0
2 years ago
A 1.24g sample of a hydrocarbon, when completely burned in an excess of O2 yields 4.04g Co2 and 1.24g H20. Draw plausible struct
arsen [322]

Answer:

Plausible structure has been given below

Explanation:

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4.04 g of CO_{2} = \frac{4.04}{44}moles CO_{2} = 0.0918 moles of CO_{2}

1 mol of CO_{2} contains 1 mol of C atom

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1 mol of H_{2}O  contain 2 moles of H atom

So, 0.0689 moles of H_{2}O contain (2\times 0.0689)moles of H_{2}O or 0.138 moles of H_{2}O

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Empirical formula of hydrocarbon is C_{2}H_{3}

So, molecular formula of one of it's analog is C_{4}H_{6}

Plausible structure of C_{4}H_{6} has been given below.

4 0
3 years ago
A sample of magnesium is burned in oxygen to form magnesium oxide. What mass of oxygen is consumed if 74.62 g magnesium oxide is
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3 0
2 years ago
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MatroZZZ [7]

Answer:

3.7 x 10^23

is the right answer

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2 years ago
Which is a reactant in the cellular respiration reaction
Alexxandr [17]

Answer: Oxygen and glucose are both reactants in the process of cellular respiration.

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