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3 years ago

What is the pH of a bleach solution that has a [OH−]=1.3×10−4 M?

Chemistry

1 answer:

Delvig [45]3 years ago

4 0

Answer:

pH = 10.113

Explanation:

Here, we can find pOH first:

pOH = $-log([OH^-])$ = 3.886.

Then, we can find pH which is 14 - pOH. We then get the answer above.

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The PH of a solution of Hcl is 2.find out the amount of acid present in a litre of the solution

Scrat [10]

Answer:

The solution is 10^-2 or 0.01M in HCl.

Explanation:

meaning of pH is "power of hydrogen".

what is the molar concentration of a HCl solution with pH=2?

Let say pH=2

[H+]=10^-2M

HCL is a strong acid that dissociates completely:

[H+]=[HCL]

Therefore solution is 10^-2 or 0.01M in HCL.

5 0

3 years ago

Perform the following conversions:<br> (a) 68°F (a pleasant spring day) to °C and K.

IgorC [24]

Converting temperature of 68°F to °C gives 20 °C.

Converting temperature of 68°F to K gives 293 K.

<h3>What is temperature conversion?</h3>

Temperature conversion is the process of converting the measurement units of the temperature recorded in a particular unit to another unit.

The various units of Temperature include;

degree Celsius
degree Fahrenheit
degree Kelvin

Temperature is measured with thermometer and it records the hotness or coldness of a body.

<h3>Converting 68°F to °C</h3>

F = 1.8C + 32

(F - 32/1.8) = C

(68 - 32) / 1.8 = C

20 ⁰C = 68 ⁰F

<h3>Converting 20°C to K</h3>

0 °C = 273 K

20 °C = 273 + 20 = 293 K

Learn more about temperature conversion here: brainly.com/question/23419049

#SPJ1

3 0

2 years ago

What is the metric unit for mass?<br> a.Meters<br> b.Kilograms<br> c.Pounds<br> d.matter

fiasKO [112]

The metric unit for mass is B. Kilograms

7 0

3 years ago

How many moles are there in 87.2 g of zinc fluoride?

Sladkaya [172]

Answer:

what I got was 0.8435160945347224 moles

7 0

2 years ago

Determine the bonding type for boron trihydride given the electronegativity on the Pauling scale for boron is 2.0 and for hydrog

Anika [276]

Answer: The bond between boron and hydrogen in boron trihydride is covalent bond.

Explanation:

The type of bonding between the atoms forming a compound is determined by using the electronegativity difference between the atoms. According to the pauling's electronegativity rule:

If $\Delta \chi=0$ , then the bond is non-polar.
If $\Delta \chi\leq 1.7$ , then the bond will be covalent.
If $\Delta \chi>1.7$ , then the bond will be ionic.

We are given:

Electronegativity for boron = 2.0

Electronegativity for hydrogen = 2.1

$\Delta \chi=\chi_{H}-\chi_{B}\\\\\Delta \chi=2.1-2.0=0.1$

As, $\Delta \chi$ is less than 1.7 and not equal to 0. Hence, the bond between boron and hydrogen is covalent bond.

3 0

3 years ago