Chemistry, 22.07.2019 07:00 awdadaddda

A2.0% (m/v) nacl solution contains g nacl in 300. ml of solution.

Answers: 2

Show answers

Answers

Answer from: malaysiasc93

300 mL of NaCl solution contains $\boxed{{\text{6 g}}}$ NaCl.

Further Explanation:

The concentration is the proportion of substance in the mixture. The most commonly used concentration terms are as follows:

1. Molarity (M)

2. Molality (m)

3. Mole fraction (X)

4. Parts per million (ppm)

5. Mass percent ((w/w)%)

6. Volume percent ((v/v)%)

7. Mass per volume percent ((w/v)%)

Mass per volume percent is defined as the amount of solute dissolved in a given volume of the solvent, multiplied by 100 %.

The formula to calculate the mass per volume percent of the solution is as follows:

${\text{Mass per volume}}\left({{\text{m/v}}}\right){\text{\%}}=\left({\frac{{{\text{Mass (g) of solute}}}}{{{\text{Volume (mL) of solution}}}}}\right)\times\left({100\;\%}\right)$

Given information:

A 2.0 % (m/v) NaCl solution

To calculate:

Amount of NaCl in 300 mL of the solution

Firstly, we have to find out the amount of NaCl that is present in 2.0 % NaCl solution.

A 2.0 % NaCl solution indicates that 2 g of NaCl is dissolved in 100 mL of the solution.

So the amount of NaCl in 300 mL of the solution is calculated as follows:

$\begin{gathered}{\text{Amount of NaCl}}=\left({\frac{{{\text{2 g}}}}{{{\text{100 mL}}}}}\right)\left({{\text{300 mL}}}\right)\\={\mathbf{6}}\;{\mathbf{g}}\\\end{gathered}$

So 300 mL of NaCl solution contains 6 g of NaCl.

Learn more:

1. What is the mass of 1 mole of viruses:

2. Determine the moles of water produced:

Answer details:

Grade: Senior School

Subject: Chemistry

Chapter: Concentration terms

Keywords: 2.0 %, NaCl, solution, concentration, proportion, substance, mixture, molarity, molality, mole fraction, parts per million, mass percent, volume percent, mass per volume percent, m, v, m/v, m/v %, 6 g.

Answer from: Quest

both adhesion and cohesion are attractions.

they are different in that adhesion is the force of attraction between the molecules of two different substances, whereas cohesion is the force of attraction between molecules of the same substance.

possible examples include capillary action, in which the adhesion between water and glass causes the water to rise in a narrow tube against the force of gravity.

because of hydrogen bonding, water is extremely cohesive.

this causes molecules on the surface of water to be drawn inward, which is why drops of water form beads on smooth surfaces.

hope this .

Answer from: Quest

they are made of gases.

they have a spherical shape.

they make energy through fusion.

Another question on Chemistry

Chemistry, 22.06.2019 09:40

Consider this initial-rate data at a certain temperature for the reaction described by

Answers: 1

Answer

Chemistry, 22.06.2019 17:30

Energy defines the different "states" of matter. in no more than 3 sentences, describe the amount of kinetic energy that each of the 3 states of matter possesses and relate that to the atom/molecular motion of each "state".

Answers: 2

Answer

Chemistry, 22.06.2019 20:00

What is the molarity of the solution produced when 145 g of nacl is dissolved in sufficient water to prepare 2.75 l of solution?

Answers: 1

Answer

Chemistry, 22.06.2019 20:00

There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of several useful plastics. in the first step, calcium carbide and water react to form acetylene and calcium hydroxide: cac2 (s) + 2h2o (g) → c2h2 (g) + caoh2 (s) =δh−414.kj in the second step, acetylene, carbon dioxide and water react to form acrylic acid: 6c2h2 (g) + 3co2 (g) + 4h2o (g) → 5ch2chco2h (g) =δh132.kj calculate the net change in enthalpy for the formation of one mole of acrylic acid from calcium carbide, water and carbon dioxide from these reactions. round your answer to the nearest kj .

Answers: 3

Answer

You know the right answer?

A2.0% (m/v) nacl solution contains g nacl in 300. ml of solution....

Questions