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antiseptic1488 [7]
3 years ago
14

How many grams of sodium chloride are required to make 2.00 L of a solution with a concentration of 0.100 M?

Chemistry
1 answer:
vampirchik [111]3 years ago
4 0

Answer:

Mass = 11.688g

Explanation:

Volume = 2.00L

Molar concentration = 0.100M

Mass = ?

These quantities are relatted by the following equation;

Conc = Number of moles / volume

Number of moles = Conc * Volume = 2 * 0.100 = 0.2 mol

Number of moles = Mass / Molar mass

Mass = Number of moles * Molar mass

Mass = 0.2mol * 58.44g/mol

Mass = 11.688g

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<span>Yes its H2O , the H2O and the OH- are acid/Base Conjugate pair................just like NH3 and NH4
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6 0
3 years ago
How many grams of NaOH are required to neutralize 700 mL of 3.0 M HCl?
sveta [45]

A gram of NaOH required to neutralize 700 ml HCL is <u>84 grams.</u>

Neutralization or neutralization is a chemical response in which an acid and a base react quantitatively with each different. I

Moles of solute = Molarity × Liters of solution

                           = 3 × 0.7 L

                          = 2.1 mole

The molar mass of NaOH = 40

mass of NaOH = 40 × 2.1 g

                        =<u> 84 gram.</u>

A neutralization response may be described as a chemical reaction in which an acid and base quantitatively react together to shape salt and water as products. In a neutralization response, there's a combination of H+ ions and OH– ions that form water.

A neutralization response is when an acid and a base react to shape water and salt and includes the mixture of H+ ions and OH- ions to generate water. The neutralization of a sturdy acid and robust base has a pH equal to 7.

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5 0
1 year ago
Explain the difference between accuracy and precision.
valina [46]

Answer:

The difference between accuracy and precision is both precision and accuracy are two ways of how scientists think about error. However, accuracy refers to or meaning to how close a measurement is to the true or accepted value. On the other hand, precision refers to or meaning to how close measurements of the same item are to each othe .... But scientists use the best quality of scientific observations and are both accurate and precise.

7 0
3 years ago
Four forces are exerted on each of the two objects shown below:
zzz [600]

Answer:

A: Object A will move in the up direction. But not object B

Explanation:

It will move in the up direction because object A has an unbalanced force. For the up direction there, it is 6 newtons and for the bottom direction, it is 2 newtons. For the right and left direction, both of them are 3 newtons. So object A will move in the up direction because it has the most newtons(which is 6).

For Object B, it is unbalanced too. But object B will move to the right because it is 2 newtons there and there is one newton on the left. Furthermore, the up and down directions are 3 newtons. So they are balanced and will cancel out. Therefore, object A will move in the right direction because it has the most newtons(which is 3).

So the final answer is object A. Hope it helped!

4 0
3 years ago
An element forms a negative ion when ionized. what side of the periodic table is it located on?
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