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3 years ago

When weak acids react with strong bases, the H+ from the weak acid is transferred to the:

Chemistry

2 answers:

Ber [7]3 years ago

7 0

To the OH- from the ztrong base to form water and salt

Aloiza [94]3 years ago

7 0

Answer:

The correct option is OH⁻ from the strong base to form water and a salt

Explanation:

The reaction between an acid and a base is called a neutralization reaction. A neutralization reaction is the reaction between an acid (weak or strong) and a base (weak or strong) to produce salt and water. Here, the hydrogen ion (H⁺) ionized from the acid combines with the hydroxyl ion (OH⁻) ionized from the base to produce water. While the metallic cation from the base combines with the nonmetallic anion from the acid to form salt.

The illustration provided in the question is no different, although a weak acid ionizes partially in water i.e not all the hydrogen atoms are ionized to form hydrogen ions.

Examples of such reactions between a weak acid

(CH₃COOH) and a strong base (NaOH) is

CH₃COOH + NaOH ⇒ CH₃COONa + H₂O

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How many grams of aluminum are required to react with 35 mL of 2.0 M hydrochloric acid, HCl?__ HCl + __ Al --> __ AlCl3 + __

kiruha [24]

Answer:

0.6258 g

Explanation:

To determine the number grams of aluminum in the above reaction;

determine the number of moles of HCl
determine the mole ratio,
use the mole ratio to calculate the number of moles of aluminum.
use RFM of Aluminum to determine the grams required.

<u>Moles </u><u>of </u><u>HCl</u>

35 mL of 2.0 M HCl

2 moles of HCl is contained in 1000 mL

x moles of HCl is contained in 35 mL

$x \: mol \: = \: \frac{2 \: \times \: 35}{1000} \\ = 0.07 \: moles \:$

We have 0.07 moles of HCl.

<u>Mole </u><u>ratio</u>

Balanced equation

6HCl(aq) + 2Al(s) --> 2AlCl3(aq) + 3H2(g)

Hence mole ratio = 6 : 2 (HCl : Al

but moles of HCl is 0.07, therefore the moles of Al;

$= \frac{2}{6} \times 0.07 \\ \: = 0.0233333 \: moles$

Therefore we have 0.0233333 moles of aluminum.

<u>Grams of </u><u>Aluminum</u>

We use the formula;

$grams \: = moles \: \times \: rfm$

The RFM (Relative formula mass) of aluminum is 26.982g/mol.

Substitute values into the formula;

$= 0.0233333 \: moles \: \times \: 26.982 \: \frac{g}{mol} \\ = 0.625799 \: grams$

The number of grams of aluminum required to react with HCl is 0.6258 g.

3 0

2 years ago

HELP ME THE WHOLE PAGE !!!! Someone help please

Deffense [45]

Answer:

In the image below

Explanation:

Hope this helps you :)

7 0

3 years ago

An earthquake’s magnitude is a measure of the

marissa [1.9K]

An earthquake's magnitude is a measure of how much energy an earthquake releases. Typically, the richter scale is used.

8 0

3 years ago

Read 2 more answers

How many significant figures are in the measurement, 0.005890 g?

pantera1 [17]

4 significant figures. Use a rule called the Atlantic-Pacific rule where if the period is absent (Atlantic), you would start counting the numbers from right to left. If the period is present (Pacific), then start counting the numbers from left to right. Since the period is present, start from 5 and there are 4 digits including 5.

6 0

3 years ago

If the density of a liquid 102g/cm^3, how many milligrams will be in 63 mL of that liquid?

Ede4ka [16]

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

mass = Density × volume

From the question

63 mL = 63 cm³

We have

mass = 102 × 63 = 6426

But 1 g = 1000 mg

6426 g = 6426000 mg

We have the final answer as

Hope this helps you

6 0

3 years ago