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oksian1 [2.3K]
3 years ago
9

The chemical formula for sodium citrate is Na3C6H5O7. Which statement is true? Sodium citrate is a compound with a total of 21 a

toms. Sodium citrate is an element with a total of 21 atoms. Sodium citrate is a compound with a total of 4 atoms. Sodium citrate is a compound with a total of 21 atoms, each of a different element.
Chemistry
1 answer:
Scrat [10]3 years ago
6 0

Answer:

Sodium citrate is a compound with a total of 21 atoms

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Solve the following problems on ideal gas equation. Practice makes perfect.
photoshop1234 [79]

Answer:

0.012mol

Explanation:

1.

Given parameters:

Pressure in the balloon  = 1.25atm

Volume of the balloon  = 2.5L

Unknown:

Number of moles  = ?

Solution:

We are going to used the combined gas law to solve this problem.

  PV = nRT

P is the pressure

V is the volume

n is the number of moles

R is the gas constant  = 0.082atmdm³mol⁻¹K⁻¹

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    1.25 x 2.5  = n x 0.082 x 285

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2.

Given parameters:

Pressure  = 16torr;

   to atm is ;

                 760torr  = 1atm

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Volume = 12L

Temperature  = 253K

Using the ideal gas law;

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            n = 0.012mol

           

7 0
2 years ago
Calculate the molarity of a solution containing 15.2 grams of nacl dissolved in 2.5 l of solution
topjm [15]

Answer:

THE MOLARITY OF THE SOLUTION IS 0.1039 MOL/DM3

Explanation:

Molarity is the number of moles of solute in a given solution,

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Molarity = 6.08 g/dm3/ 58.5 g/mol

Molarity = 0.1039 mol/dm3

The molarity of the solution is 0.1039 mol/dm3

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Hello!

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