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Papessa [141]
2 years ago
9

The rate law for the reaction 3a ⟶⟶ c is rate = 4. 36 x 10–2 l • mol–1 • h–1[ a ]2 how long will it take in hours for the concen

tration of a to decrease from 0. 74 m to 0. 21 m?
Chemistry
1 answer:
Paha777 [63]2 years ago
4 0

The hours taken for concentration to decrease from 0 to 74 min. to 0.21 m is 91.7 hours.

<h3>What is the rate law of a reaction?</h3>

Rate law depicts the rate of a chemical reaction depend on the concentration of the reactant.

The given reaction is second order reaction

Thus, the hours taken for concentration to decrease from 0 to 74 min. to 0.21 m is 91.7 hours.

Learn more about rate law of a reaction

brainly.com/question/8314253

#SPJ4

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How many milliliters of an aqueous solution of 0.193 M potassium carbonate is needed to
VikaD [51]

Answer:

295 mL

Explanation:

Given data:

Volume needed = ?

Molarity of solution = 0.193 M

Mass of salt = 7.90 g

Solution:

Molarity =  number of moles of solute / volume in L

Number of moles of salt = mass/molar mass

Number of moles of salt = 7.90 g/ 138.205 g/mol

Number of moles = 0.057 mol

Volume needed:

Molarity = number of moles / volume in L

0.193 M = 0.057 mol / volume in L

Volume in L = 0.057 mol /  0.193 M

Volume in L = 0.295 L

L into mL

0.295 L × 1000 mL/1L

295 mL

6 0
3 years ago
What is the proper way to write sodium in crystal form
Marysya12 [62]

Answer:

In the solid state Sodium has a body-centered cubic crystal structure with a = 0.428 nm and a nearest neighbor distance of 0.371 nm.

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3 years ago
Where are red blood cells made <br><br>​
balu736 [363]

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They are formed in the red bone marrow of bones.

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When we experience higher than normal low tides and lower than normal high tides we are experiencing?
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4 years ago
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B. from 52 moles of nitric acid, how many moles of silver nitrate will be produced?
IceJOKER [234]

Answer:

39 mol AgNO3

Explanation:

We have the equation 4HNO3 + 3Ag -----> 3AgNO3 + NO + 2H2O

We want to calculate the number of silver nitrate (AgNO3) moles that would be produced from 52 moles of nitric acid ( HNO3 )

We can calculate this by using mole ratio as well as dimensional analysis.

The mole ratio of Silver nitrate to nitric acid based on the balanced equation is 3AgNO3:4HNO3.

Using this we can create a table: The table is attached.

Breakdown of the table.

The moles of nitric acid cancel out and we multiply 52 by 3/4 to get 39 moles of Silver nitrate.

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3 years ago
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