All categories

2 years ago

If the pH is 10, what is the concentration of hydroxide ion?

Chemistry

1 answer:

AleksandrR [38]2 years ago

7 0

Answer : The correct option is, $10^{-4}M$

Explanation : Given,

pH = 10

First we have to calculate the pOH.

$pH+pOH=14\\\\pOH=14-pH\\\\pOH=14-10=4$

Now we have to calculate the $OH^-$ concentration.

$pOH=-\log [OH^-]$

$4=-\log [OH^-]$

$[OH^-]=1.0\times 10^{-4}M$

Therefore, the $OH^-$ concentration is, $1.0\times 10^{-4}M$

You might be interested in

identify the specific species responsible for the acidic properties of a solution of hydrochloric acid

Elena L [17]

H+ion is the species responsible for the acidic properties of a solution...

4 0

3 years ago

Read 2 more answers

Study the picture below. What does arrow F represent?

maksim [4K]

The answer would be none of the above

3 0

2 years ago

Identify the intermolecular forces present in each of these substances nh3 hcl co co2

nasty-shy [4]

Intermolecular forces are forces of interaction that are operative between two different molecules. They are of follow types
1) Dipole- dipole interaction
2) Hydrogen bonds
3) vander Waal's forces

Depending upon the polarity and constitution molecule above forces are operable.

for instance, in case of ammonia, Hydrogen bonds exist because hydrogen atom is attached to electronegative element i.e. N

HCl and CO are polar molecules, so dipole-dipole interaction is operative in these molecules.

Finally in case of CO2, vander Waal's forces of interaction is operable because it is a non-polar molecule.

4 0

3 years ago

Read 2 more answers

A slice of Swiss cheese contains 47 mg of sodium. (a) What is this mass in grams? .047 (b) What is this mass in ounces? (16 oz =

MAVERICK [17]

Answer:

(a) 0.047 g (b) 0.0016 oz (c) 0.0001 lb

Explanation:

The given mass of the sodium in the slice = 47 mg

(a) Mass has to be calculated in grams

The conversion of mg to g is shown below as:

1 mg = 10⁻³ g

So,

Mass of sodium = 47 × 10⁻³ g = 0.047 g

(b) Mass has to be calculated in ounces

The conversion of ounces to g is shown below as:

453.6 g = 16 oz

Or,

1 g = 16 / 453.6 oz

So,

Mass of sodium = (0.047 × 16) / 453.6 oz = 0.0016 oz

The conversion of pounds to g is shown below as:

1 lb = 453.6 g

Or,

1 g = 1/ 453.6 lb

So,

Mass of sodium = (0.047 × 1) / 453.6 oz = 0.0001 lb

5 0

3 years ago

The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute th

MrRissso [65]

The question is incomplete, complete question is :

The frequency factors for these two reactions are very close to each other in value. Assuming that they are the same, compute the ratio of the reaction rate constants for these two reactions at 25°C.

$\frac{K_1}{K_2}=?$