What is the molarity of a solution when 2.75 grams of NaCl is dissolved in 1100 ml of solution

Answers

Answer 1
Answer: some thing around 0.042779M

Related Questions

Another word for axis tilted on its side

Answers

Axile I looked it up and that’s what it said so hopefully this helps

How does the heat flow from the coffee to the part of the spoon in the coffee?

Answers

Answer:

Heat flows from the coffee to the spoon through conduction

Explanation:I did the lab assignment

Answer:

Heat can travel from one place to another in three ways: Conduction, Convection and Radiation. As the spoon is in direct contact with hot mug of coffee the heat will transfer to spoon this represent the process of conduction.

The arrows and yellow colored blocks indicate the ? Elements

Answers

Answer: The arrow and blue colored blocks denote the transition metal components.

       

Write the letter of the correct answer on the line
1.
-Which of the following is an opening
through which molten rock and gas leave a
volcano?
A pipe
B magma chamber
C crater
D vent

Answers

Answer:

D. Vent is the answer please

——Answer is D. Vent——-

please answer all parts and explain?

Answers

Answer:

a

Explanation:

this is the correct answer

Many states require drivers to use hands-free cell phones only. A) TrueB) False

Answers

Answer:

True.

Explanation:

Typically, cars have built in radios for the reason of not using your phone. That's why you connect it with bluetooth to call, text, and use personal music instead of listening to the ones on the radio.

Answer:

True

Explanation:

It is to keep us safe. So, we answer calls without having to take our hands off the wheel. Although it is unsafe for that aswell. The best thing to do is have 0 things that would keep you from having your eyes on the road.

Which statements about fresh-water sources are true.? (Multiple Choice) (please help asap thanks!:)

Answers

Answer:

The correct answers are:
"Only about 3 percent of Earth's water is fresh water."

"About 75% percent of the fresh water on Earth is frozen in ice sheets."

"The largest source of usable fresh water is groundwater."

Explanation:

3 percent of Earth's water is most certainly fresh water. Confirmed with a few fact checks.

The largest source of usable fresh water on Earth is groundwater. It's more difficult to access but it's there and much more usable than water say frozen in ice on the sea.

The most correct option left would be 75% of Earth's freshwater being in ice sheets even though it's about 70%.

Some water released 7800 J of energy when cooled from 78°C to 33°C. What was the mass of the water?

Answers

Answer:

-41. 47

Explanation:

m = q / Cp x T

m = Mass

q = Energy (or joules)

Cp = Heat Capacity

T = Change in Temperature

Water's heat capacity is always 4.18.

This is the formula you'll need for change in temperature:

Final - Initial

So, 33 - 78 = -45

m = 7800 / 4.18 x -45

= -41.47

One pound (1.00 lb) of body fat is equivalent to approximately 3.488 x 103
kcal.
The average amount of calories burned during running is 125 kcal/mile.
How many miles does an athlete have to run to burn off 1.00 lb of body fat?
Show your calculations.
Your Answer:
1 mil
2400
270

Answers

Since one pound (1.00 lb) of body fat is equivalent to approximately 3.488 x 10^3 kcal, then 27.9 miles must be covered to burn off one pound.

What is energy?

Energy is defined as the ability to do work. Now we are told that one pound (1.00 lb) of body fat is equivalent to approximately 3.488 x 10^3

kcal.

Hence;

If 125 kcal is burnt by running one mile

3.488 x 10^3 kcal is burnt by running x miles

x = 3.488 x 10^3 kcal * 1 mile/125 kcal

x = 27.9 miles

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What is the molarity of the 8.76 g of Na2S dissolved in 0.500 L of solution?

Answers

Answer:

.224 M

Explanation:

To begin, we need to find the molar mass of Na2S

Na=22.99g, S=78.05g2(22.99)+1(32.07)=78.05

To find Molarity, we use the equation M=moles/Liters of solution

We are given grams, so we must divide by the molar mass of Na2S to find moles.

8.76g Na2S / 78.05g/mol Na2S= .112 moles

Now we use our Molarity equation:

.112 moles Na2S / .500L of solution = .224 M

Why are fossil fuels considered nonrenewable resources?
A. Because they are made from hydrocarbons
B. Because they are harmful to the environment
C. Because they take millions of years to recreate
D Because they are org&ic material

Answers

Answer:C they take millions of years to create

Explanation: Fossil fuels are created basically from the fossils of living organismorganisms and take millions of years to form

Because fossil fuels are made from the remains of ancient plants and other species that existed millions of years ago, they are considered a non-renewable resource. Therefore, the correct option is C.

They are formed as a result of the aggregation and compression of organic matter, including dead plants and bacteria, over a long period of time. Since this geological process takes millions of years to complete, it takes a very long time (compared to human lifetimes) for fresh fossil fuel resources to be generated. Once mined and used up, fossil fuel reserves such as coal, oil and natural gas cannot be replaced over time. Non-renewable resources are those that have a limited supply and take a long time to manufacture.

Therefore, the correct option is C.

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A breakfast of cereal, orange juice, and milk might contain 230 nutritional Calories. How much is this in Joules?

A) 200,970 J
B)962,320 J
C)740,980 J
D)100,525 J

Answers

Answer:

B

Explanation:

962,320 J

230 nutritional Calories in Joules is 962,320 J

What does the scientific method help test in environmental science?
The scientific method is a way to test a
and gain a better understanding of the world.

Answers

Answer:

The scientific method is a way to test a hypothesis and gain a better understanding of the world.


Explanation:

The scientific method is a process used to explore observations and answer questions. The usual process involves making conjectures -that would be the hypotheses-, drawing predictions resulting from a logical consequence, and carring out experiments based on those predictions. The ultimate goal is to test a scientific hypothesis.  

Kathleen makes iced coffee by adding ice to her room temperature coffee in a glass. What statement explains what is taking place inside her glass?

The ce molecules will slow down over time.

The coffee molecules will speed up over time.

The cold is transferred from the ice to the coffee.

The heat is transferred from the coffee to the ice.

Answers

Answer:

The answer is the heat is transferred from the ice to the coffee.

Explanation:

Hot molecules tend to transfer to colder molcules, which causes the ice to melt and makes the coffee colder.

Hope this helps! :)

What is the number of moles of solute in 7.3L of a 4.6M solution?

Answers

Answer:

33.58 Moles

Explanation:

7.3 L  *  4.6 M / L  = 33.58 Moles

Bonding with intermolecular forces:

1.) is IBr a hydrogen bonding? yes or no?

2.) is IBr dipole-dipole interactions? Yes or no?

3.) is IBr a london dispersion forces? Yes or no?

Answers

Answer:

1.) is IBr a hydrogen bonding? yes or no? =No, IBR isn't a hydrogen bonding beacuse there are no H atoms and neither atom is N, O, F.

2.) is IBr dipole-dipole interactions? Yes or no?

= Yes, IBR is a dipole-dipole interactions beacuse Both I and Br are large molecules with lots of electrons.

3.) is IBr a london dispersion forces? Yes or no?

= No, IBR isn't a london dispersion forces because IBr is a polar dispersion force.

Answer :

See below ~

Explanation :

1) No

IBR isn't a hydrogen bonding beacuse : there are no H atoms and neither atom is N, O, F.

2) Yes

IBR is a dipole-dipole interactions beacuse Both I and Br are electronegative (dipolar) molecules with lots of electrons.

3) No

IBR isn't a london dispersion forces because IBr is a polar dispersion force, and London forces are only present in non-polar dispersion forces

write the net ionic reaction for barium nitrate + lithium iodide

Answers

The net ionic reaction for barium nitrate and lithium iodide showing the precipitation of barium iodide is given below:

[tex]Ba^{2+}(aq) + 2I^{-}(aq) \rightarrow BaI_2(s)[/tex]

What is a net ionic equation?

A net ionic equation is an ionic equation which shows only the ions that have undergone both reduction and oxidation only without any spectator ions present.

The net ionic reaction for barium nitrate + lithium iodide is given below:

[tex]Ba^{2+}(aq) + 2I^{-}(aq) \rightarrow BaI_2(s)[/tex]

Therefore, net ionic reaction for barium nitrate and lithium iodide shows the precipitation of barium iodide.

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Are physical changes and chemical changes qualitative or quantitative data?

Answers

Qualitative, because qualitative goes based off physical features, hence “quality” in the prefix.

Identify those elements that can be isolated by electrolysis of their aqueous salts. (Select all that apply.)
lithium
tin
strontium
chlorine

Answers

Chlorine and strontium are all over here too though so I’m not gonna go yet but I’m not going back

Three examples of
solid and gas solution

Answers

Answer:

Solutions having solvent in solid-state and solute in the gaseous state are called gas-solid solution. Hydrogen is a gas at STP and platinum is solid. Hence, Hydrogen gas adsorbed on the surface of platinum is an example of gas in solid solution.

Does CH3F have a higher boiling point than BRF?

Answers

Answer:

The boiling point of the fluoromethane (CH3F) is higher than that of fluorine (F2).

Which chemical equation is balanced

Answers

Answer: D

Explanation:

The reason it is D is because a balanced chemical equation will always have the same number of atoms on both sides. In answer d, both sides have a total of 4 atoms, so it it balanced.

Do you think a benitoite ring would be costly or inexpensive?​

Answers

Answer:

I think it would be costly due to the fact that the gem is very rare and gorgeous. Also, the current prices are on average $3,000 per carat, so I would say that is pretty costly.

Explanation:

Hope this helps:)....if not then sorry for wasting your time and may God bless you:)

how is preciptation formed

(im rlly bad at this D:

Answers

Bro Water droplets may grow as a result of additional condensation of water vapor when the particles collide. If enough collisions occur to produce a droplet with a fall velocity which exceeds the cloud updraft speed, then it will fall out of the cloud as precipitation.

Answer:

precipitation is formed by to much water in a cloud

Explanation:

difference between insulin resistance and insulin sensitivity? with source and thank ​

Answers

Answer:

Insulin resistance and insulin sensitivity are two sides of the same coin. If you have insulin resistance, you have low insulin sensitivity. Conversely, if you are sensitive to insulin, you have low insulin resistance.

Explanation:

searched it hope it helps

How many moles of LIF are contained in 10.0 L of a 7.50 M solution

Answers

The number of moles of LIF are contained in 10.0 L of a 7.50 M solution is 75 moles.

What is molarity?

Molarity of any solution is define as the number of moles of solute present in per liter of volume of solution and it is represented as:

M = n/V

Given that, Molarity of LiF solution = 7.50 M

Volume of solution = 10L

On putting values on above equation, we get moles

n = (7.50)(10) = 75 moles

Hence required moles of LiF is 75 mol.

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As far as terrain, mountainous northern coast otherwise known as the
A. Sierra Nevada Mountains
B. Atlas Mountains
C. Rif Mountains
D. Appalachians

Answers

D. Appalachians

That should be your answer for the mountainous northern coast.

what is the heat of fusion of water in calories per mole?​

Answers

Answer:

79.72 Calories

Explanation:

Answer:The heat of fusion for water at 0 °C is approximately 334 joules (79.7 calories) per gram, and the heat of vaporization at 100 °C is about 2,230 joules

Explanation: i really hope this helps but im not sureif this is exactly what your looking for :)

pls help me with this questionnn :))

Answers

Answer:

B. Sill

Explanation:

Magma that squeezes between horizontal rock layers hardens to form a sill. A dome mountain forms when uplift pushes a large body of hardened magma toward the surface, which eventually becomes exposed.

If 10 moles of a gas are at a pressure of 3.6 atm and at a temperature of 27°C, what is the volume of the container that the gas is in.

Answers

Answer:

68.4 liters

Explanation:

PV = nR T       R = gas constant = .082057  L atm / K-mole

                        n = 10      T = 27C = 300.15 K

3.6 V = 10 * .082057 * 300.15      solve for V = 68.4 liters

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