All categories

3 years ago

A(n) _____ is a compound that produces hydrogen ions when dissolved in water.

2 answers:

6 0

<span>An acid is a compound that produces hydrogen ions when dissolved in water. The pH of acid is less than 7 because it is rich in H+ concentration. Basic solutions have pH greater than 7 because it is rich in OH-. Neutral solutions meanwhile have pH equal to 7.</span>

yan [13]3 years ago

4 0

Answer: a. acid

Explanation:

a. Acids are those substances which either donates hydrogen ions $(H^+)$ when dissolved in water or accepts a pair of electrons.

$HCl\rightarrow H^++Cl^-$

b. Buffer is a solution which resist changes in pH on addition of small amounts of acid or base into it.

c. Bases are those substances which either donates hydroxide ions $(OH^-)$ when dissolved in water or donates a pair of electrons.

$NaOH\rightarrow Na^++OH^-$

d. Indicators are chemical compounds which show a change or appearance in color at particular pH. Example: litmus

You might be interested in

The chemical process of photosynthesis is one that requires a constant supply of energy to proceed; in this

astra-53 [7]

Answer:-

pls find the answer in description

Explanation:

if u are here u are a fool for shure

4 0

2 years ago

Worldwide, the single most important chemical weathering agent is ________. worldwide, the single most important chemical weathe

Juliette [100K]

The single most important chemical weathering agent is Carbon dioxide.
Weathering refers to the process that change the physical and chemical character of rock at or near the surface. Weathering has a dramatic impact on the composition of Earth's atmosphere. Chemical weathering removes carbon dioxide from the atmosphere, allowing it to be transformed into limestone and stored in the crust. Without chemical weathering, the elevated levels of carbon dioxide in the atmosphere would have long made Earth too hot to sustain life.

4 0

2 years ago

What purpose did the chemical water serve at the time

elena-14-01-66 [18.8K]

Answer:

At What time?

Explanation:

6 0

2 years ago

True or false, The four units that must always be used when using the ideal gas are 44.0 liters

Bogdan [553]

Answer:

for volume only liters can be used

Explanation:

4 0

2 years ago

Find the pH. What are the pH values for the following solutions? (a) 0.1 M HCl (b) 0.1 M NaOH (c) 0.05 M HCl (d) 0.05 M NaOH

slega [8]

Answer:

(a) $pH=1$

(b) $pH=1.3$

(d) $pH=12.7$

Explanation:

Hello,

In this case, we define the pH in terms of the concentration of hydronium ions as:

$pH=-log([H^+])$

Which is directly computed for the strong hydrochloric acid (consider a complete dissociation which means the concentration of hydronium equals the concentration of acid) in (a) and (c) as shown below:

(a)

$[H^+]=[HCl]=0.1M$

$pH=-log(0.1)=1$

(b)

$[H^+]=[HCl]=0.05M$

$pH=-log(0.05)=1.3$

Nevertheless, for the strong sodium hydroxide, we don't directly compute the pH but the pOH since the concentration of base equals the concentration hydroxyl in the solution:

$[OH^-]=[NaOH]$

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

$pH=14-pOH$

Thus, we have:

(b)

$pOH=-log(0.1)=1\\pH=14-1=13$

(d)

$pOH=-log(0.05)=1.3\\pH=14-1.3=12.7$

Best regards.

5 0

3 years ago