Which of the following processes uses electrical charges to separate substances? a. Spectrophotometry b. Chromatography c. Centrifugation d. Electrophoresis

Answers

Answer 1

Answer:

The process that uses electrical charges to separate substances is "d. Electrophoresis."

What is electrical charge?

Electrical charge is a fundamental property of matter, and it is associated with the presence of elementary particles called electrons and protons.

Electrical charge is a fundamental concept in physics and plays a crucial role in many natural phenomena, including the behavior of atoms, the operation of electrical circuits, and the functioning of electronic devices.

Electrophoresis is a technique commonly used in biology and chemistry to separate charged molecules, such as DNA, RNA, and proteins, based on their size and charge.

Learn more about electrical charge on brainly.com/question/2373424

#SPJ1

Related Questions

A student measures the mass of a substance as 1.7132kg and it's volume as 0.65l. What is the density substance in g/mL? Round your answer to the correct number of significant figures
Which scientist was a great influence to others when he developed the heliocentric model about how the planets orbited the Sun?
How many cases of measles would you predict were reported last year
All of the following methods would increase the solubility of a solid solute, except for
What would happen if u washed the benzoic acid in the Büchner funnel with hot solvent ? answer ASAP

The amount of oxygen formed when 12.26 g of KClO3 is heated is ________.

Answers

Answer:

approximately 4.8 grams of oxygen gas is formed.

Explanation:

To determine the amount of oxygen (O2) formed when 12.26 grams of potassium chlorate (KClO3) is heated, we need to consider the chemical reaction that occurs during this process. When KClO3 is heated, it decomposes into potassium chloride (KCl) and oxygen gas (O2).

The balanced chemical equation for this reaction is:

2 KClO3(s) → 2 KCl(s) + 3 O2(g)

From the equation, we can see that 2 moles of KClO3 produce 3 moles of O2.

Calculate the molar mass of KClO3:

K: 39.10 g/mol

Cl: 35.45 g/mol

O: 16.00 g/mol

Molar mass of KClO3 = (39.10 + 35.45 + 3 * 16.00) g/mol = 122.55 g/mol

Calculate the number of moles of KClO3 in 12.26 grams:

Moles of KClO3 = (12.26 g) / (122.55 g/mol) = 0.1 moles

Now, we can determine the number of moles of O2 produced using the mole ratio from the balanced equation:

Moles of O2 = (0.1 moles of KClO3) * (3 moles of O2 / 2 moles of KClO3) = 0.15 moles

Finally, convert moles of O2 to grams:

Mass of O2 = (0.15 moles) * (32.00 g/mol for O2) = 4.8 grams

So, when 12.26 grams of KClO3 is heated, approximately 4.8 grams of oxygen gas is formed.

Based on your own understanding and information in this lesson, what characteristics of the Confederate States of America made it a confederal government when compared to the government of the United States?

Answers

The main characteristic of the Confederate States of America that made it a confederal government when compared to the government of the United States was that its central power was much weaker.

Answer:

Exact answer (reword it yourself)

Explanation:

The Confederate States of America had a weaker central government than the United States, and individual states had more sovereignty and power that US states. The central government of the Confederate States handled only foreign issues or national economic issues.

How many dots are shown in the electron dot diagram for calcium, element number 20?

Answers

2 dots are shown for drawing it. because it has two valence electrons

An antacid tablet containing 0.50 g of NaHCO3 is dissolved in 250 mL of water. What is the molar concentration of NaHCO3 in the solution?

Answers

1 mole of NaHCO3 = 84g

1 mole of NaHCO3--------------84g
x moles of NaHCO3----------0,50g
x = 0,00595 moles of NaHCO3

0,00595 moles of NaHCO3----------in--------250ml
x moles of NaHCO3-------------------in-----------1000ml
x = 0,0238 moles of NaHCO3

answer: the molar concentration of NaHCO3 is 0,0238mol/l

Hello!

An antacid tablet containing 0.50 g of NaHCO3 is dissolved in 250 mL of water. What is the molar concentration of NaHCO3 in the solution ?

We have the following data:

M (Molar Concentration or Molarity) = ? (in mol/L)

m (mass) = 0.50 g

V (volume) = 250 mL → 0.25 L

MM (Molar Mass of NaHCO3)

Na = 1*(23u) = 23 u

H = 1*(1u) = 1 u

C = 1*(12u) = 12 u

O = 3*(16u) = 48 u

-------------------------------

MM (Molar Mass of NaHCO3) = 23 + 1 + 12 + 48 = 84 g/mol

We apply the data found to the formula of molar Concentration or Molarity, let's see:

$M = (m)/(MM*V)$

$M = (0.50)/(84*0.25)$

$M = (0.50)/(21)$

$M = 0.023809... \to \boxed{\boxed{M \approx 0.024\:mol/L}}\:\:\:\:\:\:\bf\purple{\checkmark}$

Answer:

The Molar Concentration is approximately 0.024 mol/L

________________________

$\bf\purple{I\:Hope\:this\:helps,\:greetings ...\:Dexteright02!}\:\:\ddot{\smile}$

Which of these statements about mixtures is true?Mixtures are made up of elements bonded together.
Elements and compounds are types of mixtures.
Pure substances are made up of mixtures combined in specific ratios.
Mixtures are classified based on the distribution of particles in them.

Answers

Answer: Option (d) is the correct answer.

Explanation:

When two or more different substances are mixed together then it results in the formation of a mixture.

Mixture are of two types, that is, homogeneous mixture and heterogeneous mixture.

In homogeneous mixture, the constituent particles are distributed evenly throughout the mixture.

Whereas in heterogeneous mixture, the constituent particles are non-uniformly distributed.

Thus, we can conclude that mixtures are classified based on the distribution of particles in them.

The best answer from the choices would be the last option. Mixtures are classified based on the distribution of particles in them. The classification are called homogeneous and heterogeneous mixtures. The former type describes a mixture where all components are distributed evenly. The latter type is a mixture where the components do not have uniformity in the mixture.

Which compound is soluble in water?(1) PbS (3) Na2S(2) BaS (4) Fe2S3

Answers

The compound Na2S or Sodium sulfide is soluble inwater. This compound is a water-soluble salt that give strong alkalinesolutions. When exposed to air or humidity this compound gives-off hydrogen sulfidethat smells almost the same as rotten eggs.

This chemical is commonly used in the pulp andpaper industry. Sodium sulfide compounds are usually used in chemicalphotography, textile bleaching, making dyes, and even detergents.

The other 3 compounds are non-soluble in water. Theircompositions are mostly metal in nature and require other process to transformthem into different compound forms.

Answer;

(3) Na2S

Explanation;

All sodium salts are soluble in water. Therefore, sodium sulfide will be soluble in water.
All sodium, potassium, and ammonium salts are soluble in water. The chlorides, bromides, and iodides of all metals except lead, silver, and mercury are also soluble in water.
The sulfides of all metals except barium, calcium, magnesium, sodium, potassium, and ammonium are insoluble in water.

Other Questions

The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleaned from the third postulate in Dalton's series. Magnesium oxide decomposes into magnesium and oxygen. If 16.12 g of magnesium oxide decomposes to form 9.72 g of magnesium, what mass of oxygen gas is also released in the reaction?

Isooctane has the molecular formula C8H18. What is its empirical formula

Calculate the molarity of a solution containing 5.6 mol of sodium hydroxide dissolved in 2.1 L of water

Which of the following is untrue concerning a reversible reaction?a. All reversible reactions will reach equilibrium. b. The reaction always spends equal time in the forward and reverse direction. c. There is equal processing for the concentration of reactants and products. d. The reaction could spend more time in the reverse direction than in the forward direction.