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3 years ago

What is a solute that dissolves in a solvent called

1 answer:

7 0

In chemistry, a solution is a homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent.

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a solution of KCl in water has a concentration of 0.243 M. The solution has a volume of 0.580 L. How many grams of KCl are prese

Novosadov [1.4K]

Answer:

10.5 g

Explanation:

Step 1: Given data

Molar concentration of the solution (C): 0.243 M

Volume of solution (V): 0.580 L

Step 2: Calculate the moles of solute (n)

Molarity is equal to the moles of solute divided by the liters of solution.

M = n/V

n = M × V

n = 0.243 mol/L × 0.580 L = 0.141 mol

Step 3: Calculate the mass corresponding to 0.141 moles of KCl

The molar mass of KCl is 74.55 g/mol.

0.141 mol × 74.55 g/mol = 10.5 g

8 0

3 years ago

If the pH of a solution is 5.4 then the concentration of H+ ions is ___|_x10^-6

Svetllana [295]

H is 4*10^6 M , OH is 2.5*10^-9 M

6 0

3 years ago

Which type of front is most likely moving through this area?

Lesechka [4]

Answer:

Cold front

Explanation:

5 0

3 years ago

Which mineral property is being tested below?

Annette [7]

The answer is C. Streak

4 0

3 years ago

Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction in which water (H2O) and carb

ICE Princess25 [194]

Answer : The mass of oxygen gas produced will be 4.45 grams

Explanation : Given,

Mass of water = 5.2 g

Molar mass of water = 18 g/mole

Molar mass of $O_2$ = 32 g/mole

The balanced chemical reaction will be,

$6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2$

First we have to calculate the moles of water.

$\text{Moles of }H_2O=\frac{\text{Mass of }H_2O}{\text{Molar mass of }H_2O}$

$\text{Moles of }H_2O=\frac{2.5g}{18g/mole}=0.139mole$

Now we have to calculate the moles of oxygen.

From the balanced chemical reaction, we conclude that

As, 6 moles of water react to give 6 moles of oxygen gas

So, 0.139 moles of water react to give 0.139 moles of oxygen gas

Now we have to calculate the mass of oxygen gas.

$\text{Mass of }O_2=\text{Moles of }O_2\times \text{Molar mass of }O_2$

$\text{Mass of }O_2=0.139mole\times 32g/mole=4.45g$

Therefore, the mass of oxygen gas produced will be 4.45 grams

7 0

3 years ago