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2 years ago

1. What is the purpose of the advertisement?

Chemistry

2 answers:

ASHA 777 [7]2 years ago

6 0

Answer:

For enlightenment, development and making people understand the usefulness of the product

sveta [45]2 years ago

5 0

Answer:

AKA "AD"AND ADS EXPLAIN WAYS IN WHICH THE PRODUCT IS USEFUL ... PLEASE MARK ME AS BRAINLIST

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2 years ago

Define motion of particles in matter

Wittaler [7]

Answer:

Explanation:

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3 years ago

A monoprotic weak acid when dissolved in water is 0.66% dissociated and produces a solution with a pH of 3.04. Calculate the Ka

raketka [301]

Answer:

Ka = 6.02x10⁻⁶

Explanation:

The equilibrium that takes place is:

HA ⇄ H⁺ + A⁻

Ka = [H⁺][A⁻]/[HA]

We calculate [H⁺] from the pH:

pH = -log[H⁺]

[H⁺] = $10^{-pH}$

[H⁺] = 9.12x10⁻⁴ M

Keep in mind that [H⁺]=[A⁻].

As for [HA], we know the acid is 0.66% dissociated, in other words:

[HA] * 0.66/100 = [H⁺]

We calculate [HA]:

[HA] = 0.138 M

Finally we calculate the Ka:

Ka = $\frac{[9.12x10^{-4}]*[9.12x10^{-4}]}{[0.138]}$ = 6.02x10⁻⁶

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2 years ago

The complete orbital notation diagram of an atom is shown.

Leno4ka [110]

Answer:

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2 years ago

1. What is the purpose of the advertisement?​

1. What is the purpose of the advertisement?