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4 years ago

In a solution the_is the liquid that the__is added to.

Chemistry

1 answer:

Aleksandr [31]4 years ago

4 0

Answer:

In a solution the solvent is the liquid that the solute is added to.

Explanation:

Solute + Solvent = Solution.

For example: An aqueous solution of 10 g of NaCl in 100 g of water

NaCl → solute → what you dissolved

H₂O → solvent → where you dissolve

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Every single-celled organism is able to survive because it carries out *

deff fn [24]

Answer:

Every single celled organism is able to survive because it carries out metabolic activities.

Metabolic activity is a set of chemical reactions which are needed for an organism to maintain it's life

Explanation:

the various types of metabolic processes keep an organism alive. There are various types of metabolic processes that takes place in the body of living organism.

These are cellular respiration, reproduction, excretion, digestion et cetera. Every living cell has these processes going on in their body to keep them alive.

Living organism need energy to carry out these processes which they get by eating food.

Read more on Brainly.com - brainly.com/question/12186942#readmore

6 0

3 years ago

When the amount of a radioactive substance is reduced by 50%, what has occurred?

svet-max [94.6K]

Answer:

A Half Life

Explanation:

The half life is the time it takes for the substance to become reduced by half as a consequence of decay.

4 0

3 years ago

You have 846 ml of 3.95 M HCl. Using a volumetric pipet, you take 268 ml of that solution and dilute it to 803 ml in a volumetri

Anettt [7]

Answer: The concentration of hydrochloric acid in the final solution is 0.72 M

Explanation:

According to the dilution law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of stock solution = 3.95 M

$V_1$ = volume of stock solution = 268 ml

$M_2$ = molarity of diluted solution = ?

$V_2$ = volume of diluted solution = 803 ml

$3.95\times 268=M_2\times 803$

$M_2=1.32M$

Next, you take 100.00 ml of that solution and dilute it to 184 ml in a volumetric flask.

According to the dilution law,

$M_1V_1=M_2V_2$

where,

$M_1$ = molarity of stock solution = 1.32 M

$V_1$ = volume of stock solution = 100 ml

$M_2$ = molarity of diluted solution = ?

$V_2$ = volume of diluted solution = 184 ml

$1.32\times 100=M_2\times 184$

$M_2=0.72M$

Thus concentration of hydrochloric acid in the final solution is 0.72 M

7 0

4 years ago

Which of the following should have the largest Henry's law constant (kH) in water?

Ostrovityanka [42]

Answer: Option (B) is the correct answer.

Explanation:

It is known that Henry's law is a relation between the concentration of a gas in a liquid (solubility) and the pressure it exerts on the surface of the liquid.

According to Henry's law, the pressure of a gas is directly proportional to the solubility of the gas in a liquid.

Henry's constant is represented by the symbol $K_{H}$ . And, mathematically it is represented as follows.

P = $K_{H}C$

where, P = pressure and C = solubility

As the pressure for the given species is the same. Hence, the standard values of solubility of the given species is as follows.

Gas Solubility

Ar $3.025 \times 10^{-5}$

CO $2.095 \times 10^{-5}$

Xe $10.519 \times 10^{-5}$

$CH_{3}CH_{3}$ $4.556 \times 10^{-5}$

$CO_{2}$ $8.21 \times 10^{-4}$

As, Henry's constant is inversely proportional to the solubility. Hence, more is the value of solubility lesser will be the value of Henry's constant.

Thus, we can conclude that out of the given options CO have the largest Henry's law constant ( $K_{H}$ ) in water.

6 0

4 years ago

Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body. I

Aneli [31]

Answer : The number of iron atoms present in each red blood cell are, $1.077\times 10^9$

Explanation :

First we have to calculate the moles of iron.

$\text{Moles of iron}=\frac{\text{Mass of iron}}{\text{Molar mass of iron}}=\frac{2.90g}{55.85g/mole}=0.0519moles$

Now we have to calculate the number of iron atoms.

As, 1 mole of iron contains $6.022\times 10^{23}$ number of iron atoms

So, 0.0519 mole of iron contains $0.0519\times 6.022\times 10^{23}=3.125\times 10^{22}$ number of iron atoms

Now we have to calculate the number of iron atoms are present in each red blood cell.

Number of iron atoms are present in each red blood cell = $\frac{\text{Number of iron atoms}}{\text{Total number of red blood cells}}$

Number of iron atoms are present in each red blood cell = $\frac{3.125\times 10^{22}}{2.90\times 10^{13}}$

Number of iron atoms are present in each red blood cell = $1.077\times 10^9$

Therefore, the number of iron atoms present in each red blood cell are, $1.077\times 10^9$

6 0

3 years ago

In a solution the___is the liquid that the____is added to.

In a solution the_is the liquid that the__is added to.