How many moles of nitrogen are in 12 grams

Answers

Answer 1

Answer:

Explanation:

The chemical formula of nitrogen is N2

A mol of Nitrogen atoms = 14 grams

So N2 will have a molar mass of 14 * 2 = 28 grams

number of moles of N2 = given mass / molar mass

number of moles of N2 = 12 / 28

number of moles of N2 = 0.4286 mols


Related Questions

Which equation is balanced?

CH4 + O2 ⟶ CO2 + H2O

Mg + 2HCl ⟶ MgCl2 + H2

Mg + P4 ⟶ Mg3P2

Answers

Answer:

A I think

Explanation:

im not sure so do with that what you will

When water droplets in a cloud combine, become too heavy, and fall to the ground as rain, snow, sleet, or hail, we are experiencing _____.

Answers

Answer:

precipitation

Explanation:

Answer:

precipitation

Explanation:

Any event where water (in any form- frozen or liquid or any other form) falls from sky it is called precipitation.

I need help on deciding which one i should get

Answers

Answer:

I would say the purple one!

Explanation:

In steps 3 and 4 of the citric acid cycle, successive oxidations produce ________ as a waste product and the four-carbon carrier ________. In steps 3 and 4 of the citric acid cycle, successive oxidations produce ________ as a waste product and the four-carbon carrier ________. CO2; malate CO2; succinyl-SCoA ADP; oxaloacetate ADP; succinyl-SCoA CO2; oxaloacetate

Answers

Answer:

CO2; succinyl-SCoA

Explanation:

Citric acid cycle, also called Krebs cycle is the second stage of aerobic cellular respiration, which occurs in the mitochondrion. The kreb's cycle is made up of 7 distinct steps, with each involving series of enzymatic reactions.

According to this question, step 3 and 4 of the citric acid cycle involves an oxidation and decarboxylation reaction to produce 2 molecules of carbon dioxide (CO2) and a 4-carbon compound called succinyl group. A coenzyme A binds to the succinyl group to form succinyl-SCoA.

Alanna spots a bird in her back yard. The bird is sitting on a tree. Explain how the outer coverings of the bird and tree are different and have different functions.

Answers

Answer:

A bird's feathers are supposed to keep the bird warm and help them fly. A tree's bark is supposed to protect the inside of the tree.

Explanation:

If a tree has no bark, the inside of it is exposed. If a bird has no feathers, the bird is cold and cant fly.

Can someone help with question 16?
ASAP

Answers

1. carbon lies in the 2nd period where silicon in the third period.

2. carbon is a non metal whereas silicon is a metalloid.

3. there are only 3 isotopes of carbon and 23 isotopes of silicon

4. size of silicon atom is larger

5. silicon is heavier than carbon.

A 996.9 g sample of ethanol undergoes a temperature change of -70.98 °C while releasing 62.9
calories of heat. What is the specific heat capacity of ethanol?

Answers

Answer:

[tex]c=3.71\ J/g^{\circ} C[/tex]

Explanation:

Given that,

Mass of sample, m = 996.9 g

The change in temperature of the sample, [tex]\Delta T=-70.98^{\circ}C[/tex]

Heat produced, Q = 62.9  calories = 263173.6 J

The heat released by a sample due to change in temperature is given by :

[tex]Q=mc\Delta T[/tex]

Where

c is the specific heat capacity

So,

[tex]c=\dfrac{Q}{m\Delta T}\\\\c=\dfrac{263173.6}{996.9\times 70.98}\\\\c=3.71\ J/g^{\circ} C[/tex]

So, the specific heat of ethanol is equal to [tex]3.71\ J/g^{\circ} C[/tex].

A sample of 10.0 grams of carbon dioxide gas is contained in a tank with a volume of 6.0 L so that the pressure inside the tank is 1.00 atm. What is the
temperature of the gas sample in °C?
Given: R = 0.0821 L.atm/molek
O 280°C
O 322°C
O 49°C
O 595°C

Answers

Answer:

49°C

Explanation:

Let's apply the Ideal Gases Law in order to solve this question:

P . V = n . R . T

Pressure = 1 atm

Volume = 6 L

n = number of moles → 10 g. 1mol /44g = 0.227 moles

R = Ideal Gases Constant

We replace data: 1 atm . 6 L = 0.227 mol . 0.082 . T

6 atm.L / ( 0.227 mol . 0.082) = T

T° = 322 K

We convert T° from K to °C → 322 K - 273 = 49°C

What type of circuit is shown in the diagram below?

Answers

Answer:

Its a simple SERIES circuit

Explanation:

Explain the process of fermentation.

Answers

Answer:

Fermentation, chemical process by which molecules such as glucose are broken down anaerobically. More broadly, fermentation is the foaming that occurs during the manufacture of wine and beer, a process at least 10,000 years old. The frothing results from the evolution of carbon dioxide gas, though this was not recognized until the 17th century.

Explanation:

looked it up-

Answer:

like babies or milk and cheese?

Explanation:

What is the molarity of a solution prepared by dissolving 10.0 grams of NaOH in enough water to make a solution with a total volume of 2.40 liters?

O0.104 M NaOH
O0.201 M NaOH
O0.361 M NaOH
O0.412 M NaOH

Answers

Solution :

Molecular mass of NaOH is 23 g/mol .

So, number of moles of NaOH is given by :

[tex]n = \dfrac{10}{40}\ mole[/tex]

Now, we know molarity is given by :

[tex]Molarity = \dfrac{Number \ of \ moles\ of \ salute}{Volume ( in \ Liter ) }[/tex]

[tex]M = \dfrac{10}{40\times 2.4} \ M\\\\M = 0.104 \ M[/tex]

Hence, this is the required solution.

Answer: The answer is A O0.104 M NaOH

Explanation:

Only producers are able to capture energy from the sun and the matter from the environment to make food.How does energy that come from the sun get to every other organism?How does matter from the environment enter every other organism?

Answers

Answer:

Explanation:

Plants get energy from sunlight to produce carbohydrates. When a consumer such as herbivore consume plants, he gets energy and when a canivore or omnivore consume the primary consumer, energy is also transfered to them and this is called food chain.

Matter from the environment which include fallen leaves or trees will decompose after a while in the ground when decomposers begin to act on it and it will eventually give them energy. Decomposer help break down organic matter such as leaves,dead animals and get little amount of of energy in the energy flow pyramid

What is the volume occupied by 0.17 grams of gaseous H2S at 27◦C and 380 torr?

Answers

Answer:

0.25 liter

Explanation:

Trust

Two ways the atmosphere can be divided

Answers

Answer:

The atmosphere can be divided into layers based on its temperature, as shown in the figure below. These layers are the troposphere, the stratosphere, the mesosphere and the thermosphere.

the distance between two points on a map is 0.04 kilometers what is the distance in meters

Answers

The answer is 400 meters

What is the name of NaC2H3O2?

Answers

Sodium Acetate, hope it helps

The chemical name for NaC₂H₃O₂ is sodium acetate.

Sodium acetate is a compound that consists of sodium ions (Na+) and acetate ions. It is also known by its chemical formula CH₃COONa. The compound is commonly found in both solid and aqueous forms.

Sodium acetate is produced by the neutralization reaction between acetic acid and sodium hydroxide. It can also be obtained by reacting sodium carbonate with acetic acid. The resulting product is a white crystalline solid that is highly soluble in water.

One of the notable properties of sodium acetate is its ability to act as a buffer solution, meaning it can resist changes in pH. It is often used in various applications.

To learn more about the chemical name, follow the link:

https://brainly.com/question/30631355

#SPJ6

Oxygen has 6 valence electrons. how many hydrogen atoms (who have 1 valence electrons) can bond with it? remember the octet rule.

Answers

Answer:

two hydrogen can bonded with oxygen to form H2O

Please help me with number 43

Answers

Answer:

The reason why atomic mass is usually not a whole number is because it is a weighted average of the mass numbers of isotopes

Explanation:

what is the percentage of oxygen in air
ASAP...​

Answers

Explanation:

21 % of oxygen is present in air .

hope it is helpful to you

.60 L .of 95 M solution of NaCl is allowed to evaporate until it has a volume of .25L What is the concentration of the new solution?

Answers

Answer:

2.28 M

Explanation:

Using the formula as follows;

C1V1 = C2V2

Where;

C1 = initial concentration (M)

C2 = final concentration (M)

V1 = initial volume (L)

V2 = final volume (L)

According to the information given in this question;

C1 = 0.95M

C2 = ?

V1 = 0.60L

V2 = 0.25L

Using C1V1 = C2V2

0.95 × 0.60 = C2 × 0.25

0.57 = 0.25 C2

C2 = 0.57 ÷ 0.25

C2 = 2.28 M

Thave 7.6 x 1023 particles of neon. How many moles of neon do I have?

Answers

Answer:

1.26moles

Explanation:

To get the number of moles (n) in an element, we divide the number of molecules of the element by Avagadro number (6.02 × 10^23)

n = no. of molecules ÷ nA (6.02 × 10^23)

According to this question, number of molecules of Neon (Ne) is 7.6 x 10^23 particles.

n = 7.6 x 10^23 ÷ 6.02 × 10^23

n = 7.6/6.02 × 10^(23-23)

n = 1.26 × 10^0

n = 1.26moles

How many moles are in 100 g of K3PO4 ?

Answers

The answer is 212.266261. I assume you are converting between grams K3PO4 and mole.*hope this helps*

HELP ASAP!! 12pts!
What is the molarity of an aqueous solution containing 7.5 moles of
calcium chloride in 12.75 L of solution?
A. 0.59 M
B. 1.7M
C. 7.5M
D. 95.6 M

Answers

Answer:

The correct answer is 0.59M

Calculate the amount of heat gained by the water in cup 2 after adding the hot object(s) to it.

Use the data recorded in parts B and C and the formula Q = mCΔT. The specific heat capacity of water is 4.186 J/(g °C).
(part B and C numbers are included)

Answers

Answer:

The amount of heat gained by the water in cup 2 after adding the hot object(s) to it is 2119.121 Joules

Explanation:

As we know

Amount of heat gained

Q = mc (T2-T1)

Here,

mass of water in cup 2 (m) = 79.10 grams

Temperature of water in cup 2 = 16.8 degree Celsius

Specific heat of water (c) = 4.186 J/(g °C)

Final Temperature of water in cup 2  = 23.2 degree Celsius

Substituting the given values, we get -

Q = 79.10 * 4.186 * (23.2 -16.8) = 2119.121 Joules

The amount of heat gained by the water in cup 2 after adding the hot object(s) to it is 2119.121 Joules

Which compound in the following reaction serves as the Bronsted-Lowry acid?
NaOH + HCl → NaCl + H2O
O NaOH, because it is a proton donor
O HCI, because it is a proton donor
O NaOH, because it is a proton acceptor
HCI, because it is a proton acceptor

Answers

Hydrochloride acid , because it is proton donor
Proton donor are nomarlly acid while proton acceptor are normally base


Calculate the average reading for all three trials for both the wet bulb and dry bulb thermometers. Convert the average
temperatures for both thermometers to Celsius using this formula:
(°F - 32) = °C.

Answers

Answer: °32= 0 °C.

Explanation:

Answer:

Explanation:

Please add the temperature readings from all three trials for both thermometers. Will do the calculation with readings.


What does this image represent?

A) A methyl group present in fatty acids

B) A ketone group present in fat molecules

C) An aldehyde group present in monosaccharides molecules

D) An acid group present in lipids

Answers

Answer:

D) An acid group present in lipids

Please help me with this homework

Answers

Answer:

The answer is C density.

Can someone help me

Answers

The answer is Refraction

Answer:

Its refraction

Explanation:

becuase refraction is the change in direction of a wave passing from one medium to another, where the straw appears to be split apart because of the waters direction.

(52.6 cm)(1.214cm) what is the product expressed to the correct number of significant figures?

Answers

The product is 63.8564
The correct number of S.F is 64.0000
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