All categories

3 years ago

Celina has a water sample that’s contaminated with salt and microorganisms. Which method should she use to purify the water?

Chemistry

2 answers:

kap26 [50]3 years ago

7 0

Answer: Second option is correct.

Explanation:

Filtration is the method of removing impurities solid particles from liquid.

Distillation is the method of removing impurities in a boiling liquid mixture.

Osmosis is the movement of water from low concentration to high concentration through a plasma membrane.

Reverse osmosis is the method of purification of water to remove ions and unnecessary molecules from drinking water.

We have given the situation that "There is a water sample contaminated with salt and micro organisms."

We need to purify the water.

Filtration is the best method to purify the water and remove the salt and micro organisms.

As there is slight difference between filtration and distillation.

In distillation we need to boil the water , so there heat is needed for this whereas in filtration, it just remove solid from fluid without being heated.

Hence, Second option is correct.

Alik [6]3 years ago

3 0

B) filtration
(hope this helps) ~A

You might be interested in

An elevator is rising at a constant speed. What forces are acting on the elevator? A. normal, gravity and tension B.gravity and

yKpoI14uk [10]

I would say B I hope this helps

3 0

3 years ago

Read 2 more answers

A dehydration reaction starting with 3.8 g cyclohexanol produces 2.6 g cyclohexene. Calculate the theoretical yield for this rea

diamong [38]

Answer:

Theoretical yield of C6H10 = 3.2 g.

Explanation:

Defining Theoretical yield as the quantity of product obtained from the complete conversion of the limiting reactant in a chemical reaction. It can be expressed as grams or moles.

Equation of the reaction

C6H11OH --> C6H10 + H2O

Moles of C6H11OH:

Molar mass of C6H110H = (12*6) + (1*12) + 16

= 100 g/mol

Mass of C6H10 = 3.8 g

number of moles = mass/molar mass

=3.8/100

= 0.038 mol.

Using stoichoimetry, 1 moles of C6H110H was dehydrated to form 1 mole of C6H10 and 1 mole of water.

Therefore, 0.038 moles of C6H10 was produced.

Mass of C6H10 = molar mass * number of moles

Molar mass of C6H10 = (12*6) + (1*10)

= 82 g/mol.

Mass = 82 * 0.038

= 3.116 g of C6H10.

Theoretical yield of C6H10 = 3.2 g

4 0

4 years ago

What is the mass constant of a proton?

Salsk061 [2.6K]

I believe the answer is, 1.0 AMU (<span>Atomic Mass Units)</span>. I hope this helps!

3 0

3 years ago

For hydrated copper (II) sulfate calculate the mass percentage of water in your hydrated crystals.

nikitadnepr [17]

Answer:

56.44 %

Explanation:

The formula of copper(II) sulfate pentahydrate is $CuSO_4\cdot 5H_2O$ .

In order to calculate the mass percentage of water in it, we may assume that we have 1 mol of copper(II) sulfate pentahydrate. In general, the mass percentage is a ratio between the mass of a component and the total mass of the compound expressed in percent:

$\omega = \frac{m_c}{m_t}\cdot 100 \%$

Since we're taking 1 mole of a substance here, we may state that the mass percentage of water will be calculating using molar masses instead:

$\omega_{H_2O} = \frac{5M_{H_2O}}{M_{CuSO_4\cdot 5 H_2O}}\cdot 100 \%$

Notice that we take 5 molar masses of water, as 1 mole of copper(II) sulfate pentahydrate contains 5 moles of water molecules, then:

$\omega_{H_2O} = \frac{5\cdot 18.016 g/mol}{159.609 g/mol}\cdot 100 \% = 56.44 \%$

6 0

3 years ago

What is the formula of the ion formed when sodium achieves a stable electron configuration?

artcher [175]

Sodium is a group 1 element, so it forms a cation with a +1 charge by losing one electron, so it will become Na+

3 0

4 years ago