what is the molarity (M) of cobalt (II) nitrate?

The concentration of the NaOH in the solution will be 0.5 mol/L

The concentration is defined as the amount of a particular chemical present in the mixture.

Now the given chemical reaction is:

2NaOH + H₂SO₄ = Na₂SO₄ + 2H₂O

The volume of (H₂SO₄)=0.25 L

The concentration of (H₂SO₄)=2.00 mol/L

The volume of (NaOH)=2.00 L

Now the concentration will be calculated as:

[tex]c(NaOH)= \dfrac{2c(H_2SO_4)}{v(NaOH)}[/tex]

[tex]c(NaOH)=\dfrac{2\times2\times 0.25}{2} =0.5\ \frac{mole}{L}[/tex]

Hence, the concentration of a solution of NaOH is 0.5 mol/L

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Answer:

C. 0.50 M

Explanation:

Correct on Edge 2022!!!

Good luck everyone, you got this! Have a great day!

Answer:

answer: 6.875 moles

Explanation:

nCH4 = nCO2 = 110/(12 + 4) = 6.875

Answer:

As greenhouse gas emissions blanket the Earth, they trap the sun’s heat. This leads to global warming and climate change. The world is now warming faster than at any point in recorded history.

Explanation:

;)

Generating power, Manufacturing goods, and deforestation

Answer:

44.95408163 kg

44.95 kg (2 decimal places)

Explanation:

Weight=Mass*Gravity

440.55=m*9.8

Make m the subject

M=440.55/9.8

M= 44.95 kg

Answer:

=4.12J/K - g

Explanation:

:)

Answer:

c.1.5 moles of cu Will contain a total of 9.0 * 10 ^ 23 ATOMS.

To convert moles into atoms they molar amount and number of atom is múltiples by avagadro's number.

Answer:

oxygen and ozone are different because they are made up of 3 oxeygen atoms

Explanation:

Answer:

Oxygen

Explanation:

Aerobic respiration specifically requires oxygen, but anaerobic respiration does not.

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\ [/tex]

From the question we have

[tex]density = \frac{6}{0.6} \\ [/tex]

We have the final answer as

Hope this helps you

The event which most likely occurs at point V during a rock cycle is cooling.

Point V is present in the rock cycle, where changes in the state or nature of rock takes place.

When mangma comes towards the surface of the earth then due to change in temperature and pressure it will concerts into the igneous rock by cooling process and coverts into the harder form.

Hence at point V, colling is occur.

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Answer:

A. cooling

Explanation:

edge 22'

The new concentration of the solution is 0.016 M

From the question, we are to determine the concentration of the new solution prepared from question 4.

NOTE: Question is provided below

From question 4, the concentration of the sodium chloride solution is 0.200M

Now, to determine the new concentration,

Using the dilution law

C₁V₁ = C₂V₂

Where

C₁ is the initial concentration

V₁ is the initial volume

C₂ if the final concentration

and V₂ is the final volume

Then,

C₁ = 0.200 M

V₁ = 10.00 mL
C₂ = ?

V₂ = 125.00 mL

Then,

0.200 × 10.00 = C₂ × 125.00

[tex]C_{2}= \frac{0.200 \times 10}{125.00}[/tex]

C₂ = 0.016 M

Hence, the new concentration of the solution is 0.016 M

Question 4:

Calculate the amount of solid sodium chloride needed to make 200.00 mL of a 0.200 M solution

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The electrons can jump shells by releasing/gaining energy. If an atom develops a positive charge, how could it have happened? It couldn't possibly have taken on additional protons because protons and neutrons are bound by the strong nuclear force, which keeps the nucleus stable.

Answer:

Potassium chloride, KCl , is an ionic compound formed by the electrostatic force of attraction that holds the potassium cations and the chlorine anions together. Potassium, K , is located in group 1 of the Periodic Table.

Explanation:

thanks

Answer:

4

Explanation:

4moles of Fe reacts =2moles of Fe2O3

8moles of Fe reacts=x moles of Fe2O3

cross multiply

4★X=8★2

X=16/4

X=4

Answer:

answer

polymerization

Answer:

We have a chemist who collects 59 ml of S. 0. 2 at the pressure atmospheric pressure. Also, this one is considered as proven. We one and this one is pretty even so this is 0.989 atmospheres. Now is the second day the pressure atmospheric pressure was 0.967 atmospheres. Then what is the pressure of sulfur dioxide in the flask? Oh, so if you see here, we know that the one we want is equal to P two. We do so from the ideas equation. So this one is equal to what we want we do so we do is equal to P one. We want we do. Then it is equal to P one is 59 B one and B one is 0.989 and debated by 0.967 atmospheres. So this one is atmospheres and atmospheres and this one is Ml. So here the 0.967 atmospheric pressure is 60.34 ML approximating so this is the pressure of the gas at 0.967 on the second day.

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The concept Boyle's law is used here to determine the new volume of sulphur dioxide. Boyle’s law was put forward by the Anglo-Irish chemist Robert Boyle in the year 1662. Here the new volume is 60.34 mL.

A gas law known as Boyle's law asserts that a gas's pressure is inversely proportional to its volume when it is held at a fixed temperature and of a given mass. To put it another way, as long as the temperature and volume of the gas remain constant, the pressure and volume of the gas are inversely proportional to one another.

For a gas, the relationship between volume and pressure (at constant mass and temperature) can be expressed mathematically as follows.

P = k*(1/V) ⇒ PV = k

For two different gases, the equation is:

P₁V₁ = P₂V₂

V₂ = P₁V₁ / P₂

0.989 × 59.0 / 0.967 = 60.34 mL

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Answer:

5.68

Explanation:

just divide. hope this helps!

Answer:

Storm Surge

Explanation:

A storm surge is a rise in sea level that occurs during tropical cyclones, intense storms also known as typhoons or hurricanes.

Answer:

The feedback mostly on the scenario mentioned is defined downwards.

Explanation:

There seem to be forces that regulate the whole mechanism as well as preserve equilibrium in every natural cycle. It is possible to divide these variables into two simple types:

The improvement throughout the natural state is attempted by negative factors as well as the positive reinforcement attempts to mitigate this improvement and approach the problem to something like the primary comfortable position.

Let's take a basic example including its process for suggestions. Users start whimpering if you get too cold. Your body continues to pump additional blood attributable to the whole shivering and indeed the temperature therefore raises. Throughout this circumstance, the temperature drop is a mechanism that serves to initiate the shivering, as well as the shivering attempts to recover the steady body’s temperature. Therefore the shivering case seems to be positive feedback that seeks to restore the primary balance.

Much the same for the landmass uplifting allows the emergence of more life above it. So, social advancement seems to be a system of negative criticism that disturbs the equilibrium. After that, the main elevation of the landform needs to regain the excess volume of degradation. So, this is indeed a tool for constructive feedback.

Answer:

B

Explanation:

Physical property can be observed without changing the property of substance for example it color, density, and etc.

Chemical property is what C explains as it is how it reacts with other substance

Answer:

physical properties are the can be seen

Explanation:

Example.one physical property of iodine is cluster like when it is solid

Answer:

0.142

Explanation:

Answer:

0.142 moles.

You would have to convert the algorithm to a broken down version of the compound.

NH4NO3(aq] → NH+4(aq] + NO−3(aq]

The ammonium is removed for this case, concentration gets broken down to zero.

So here, if 1 liter is equal to 10 x 10 x 10 milliliters...

use the formula of n and c to help you figure out the moles.

C is equal to N divided by V, so in that case...

N equals C times V.

C times V is 0.425, or 17 over 40 in simplest form.

From there, multiply 17 over 40 by the current moles, cross out the liters, and multiply by 335, then, 10 to the power of -3. You have to flip it to negative, because it will cancel out either way. Change the equation by the liters, and you have 0.125

Hence, your correct answer is 0.125

Answer:

ACTUALLY the correct answer is

helium

Answer:

Energy is carried from one point to another or from one region to another by moving mass or through the action of waves.

· All waves have a source.  This source transforms energy into forms that can be carried as waves.

· Waves are not material objects.  Waves represent the moving energy being carried away from the source.

Waves are coordinated vibrations that transport energy.  Sometimes waves require the vibration of particles in matter to move, other waves travel without any need for particle vibrations.

Explanation:

Wave energy requires no motion for its movement whereas matter energy requires motion. Wave energy travels in electromagnetic spectrum whereas this is not applicable to matter energy.

Wave energy is obtained from the water currents in the ocean and seas. The energy so harnessed is a renewable form of energy.

Wave energy is important as it provides enormous energy harvest. Waves have the high potential to generate energy on a mass scale. This energy can be utilized for energy production, water desalination etc. Special wave energy converters are available for this purpose.

Wave energy will reduce the dependence on fossils for energy. It can be considered as a reliable source to obtain energy using wave power. However, it is an expensive way and also requires high maintenance.

Wave energy is also weather dependent. As disturbances in the weather affect the energy production.

Thus, waves can be considered as an important source of renewable energy on earth.

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nswer: 959.67 K or 686.67 C

Explanation:

Entropy of Vaporization (S) = Heat of Vaporization (H) / T ( boiling point) (in Kelvin)

1.) Flip the equation to have T as the product --> T = H/S

2.) We need to change H from kJ to J --> 69.0 kJ/mol --> 69000J/mol

3.) Substitute numbers in the equation --> (69000 kJ/mol) / (71.9 J/Kmol) = T

4.) T = 959.67 K or in Celcius --> 959.67 - 273 = 686.67 C

Answer:

REGULATOR - A device which controls the flow of current or voltage in a circuit to a certain desired level. RELAY - An electrical coil switch that uses a small current to control a much larger current. RELUCTANCE - The resistance that a magnetic circuit offers to lines of force in a magnetic field.

Explanation: