How many atoms are in 1.75 mol of ecules oh NH^3

Answers

Answer 1

Answer: 1 mole ----------- 6.02x10²³ atoms
1.75 moles ------- ?

atoms = 1.75 * 6.02x10²³ / 1

= 1.053x10²⁴ atoms

hope this helps!

Related Questions

The element carbon is present in all organic compounds. Which reason would explain why there are so many different types of organic compounds? A) Carbon is a nonmetal. B) Carbon has an atomic number of six. C) Carbon can form four covalent bonds. D) Carbon has a total of six electrons.
Which of these is a physical property?A) ability to burn a piece of paperB) pure sodium reacts violently with waterC) the boiling point of water is 100’CD) helium does not tend to react with anything
Which elements have the most similar chemical properties?A. Si, As, and TeB. Mg, Sr, and BaC. N2, O2, and F2D. Ca, Cs, and CuPlease explain your answer in this case
the combustion of propane may be described by the chemical equation, C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(g) how many grams of O2(g) are needed to completely burn 40.4 g of C3H8(g)?
Which compound contains both ionic and covalentbonds?(1) CaCO3 (3) MgF2(2) PCl3 (4) CH2O

If 0.25 mol of Br2 and 0.55mol of Cl2 are introduced into a 3.0-L container at 400 K, what will be the equilibrium concentration of BrCl ?? Br2(g)+Cl2(g) 2BrCl at 400 K, Kc= 7.0

Answers

Answer:

[BrCl] = 0,13M

Explanation:

For the reaction:

Br₂(g) + Cl₂(g) ⇄ 2BrCl

kc = [BrCl]²/[Br₂] [Cl₂] (1)

If initial [Br₂] and [Cl₂] are 0,25mol/3,0L=0,083M and 0,55mol/3,0L=0,18M, the concentrations in equilibrium are:

[Br₂] = 0,083M - x

[Cl₂] = 0,18M - x

[BrCl] = 2x

Replacing in (1)

7 = (2x)²/ (0,083 - x)(0,18 - x)

7 = 4x²/ x²- 0,263x + 0,01494

7x² - 1,841x + 0,10458 = 4x²

3x² - 1,841x + 0,10458 = 0

Solving for x:

x = 0,0633. As [BrCl] = 2x. [BrCl] = 0,13M

I hope it helps!

For the chemical reaction C2H6 + 137 kJ C2H4 + H2, the chemical energy of thea. reactant is greater than the chemical energy of the products.
b. products is greater than the chemical energy of the reactant.
c. reactant and the chemical energy of the products are equal.
d. reaction is conserved.

Answers

The reaction C₂H₆+137kJ→C₂H₄+H₂ is endothermic since the energy is being absorbed by the reaction and not released. We know this by the fact that the energy is on the reactants side of the reaction. If the energy was on the products side of the reaction we would call it exothermic since energy would be being released. Since this reaction is endothermic we know that the products will have more energy than the reactants which means that the answer is B.

(the equation in the question does not have an arrow in it so I assumed it was between the 137kJ and C₂H₄).

I hope this helps. Let me know if anything is unclear.

Answer:

The chemical energy of C2H4 and H2 is greater than the chemical energy of C2H6 .

Explanation:

What is the sum of 0.04321 g + 5.263 g + 2.13 g to the correct number of significant digits

Answers

Actually it should be 7.44 since the number 2.13 has only two decimal places.

i got 7.43621 hope it helps

Which class of elements best conducts electricity

Answers

Metals best conducts electicity

metals conduct all electricity.

34. Many bicycles have generators that have a light that can be powered without a battery.Instead of a battery, a magnet and a coil of wire are used to make an electric current flow. The
setup shown below models how a bicycle generator functions to produce light. Currently, no
electric current is flowing through the circuit shown.
What needs to happen to cause an electric current to flow through the circuit?
A. The magnet needs to be in constant motion.
B. A bigger light bulb needs to be used.
C. The magnet's north pole needs to point up.
D. A smaller wire needs to be used.

Answers

A the magnet needs to be in motion

Which of the following is NOT an example of a fossil fuel?a. coal
b. natural gas
c. petroleum
d. methanol

Answers

Methanol is not an example of a fossil fuel.

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The action of some commercial drain cleaners is based on the following reaction: 2 NaOH(s) + 2 Al(s) + 6 H2O(l) → 2 NaAl(OH)4(s) + 3 H2(g) What is the volume of H2 gas formed at STP when 6.32 g of Al reacts with excess NaOH?

What is the difference between a period and a group on the periodic table