1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
garri49 [273]
2 years ago
11

Washing soda, a compound used to prepare hard water for washing laundry, is a hydrate, which means that a certain number of wate

r molecules are included in the solid structure. Its formula can be written as Na2CO3⋅xH2O, where x is the number of moles of H2O per mole of Na2CO3. When a 3.070 −g sample of washing soda is heated at 25 ∘C, all the water of hydration is lost, leaving 1.14 g of Na2CO3.
What is the value of x?

Chemistry
1 answer:
emmainna [20.7K]2 years ago
3 0

Answer: 10

Explanation:

The detailed solution is contained in the image attached. The molar mass of hydrated and anhydrous salts are obtained and the number of moles of hydrated and hydrated salts are equated. The masses of hydrated and anhydrous salts are gives in the question and are simply substituted accordingly. This can now be used to obtain the number of molecules of water of crystallization as required in the question.

You might be interested in
A tall pea plant (Tt) is crossbred with another tall pea plant (Tt). The following Punnett square shows the separated alleles fo
Luba_88 [7]

Answer:

B.

Explanation:

when you use punnett squares, you cross the different genes with themselves. if T is in the first box on both sides, the genome will be TT. if the box lines up to tt, it will be tt. the boxes on the left use the genes' first letter and the boxes on the right use the second letter.

7 0
2 years ago
Read 2 more answers
Safurared Solution changes into Unsaturated<br>by heating​
natima [27]

Answer:

Yes it is because heating expands molecules of solution which helps to form a solution as it acts as solvent solution.

Explanation:

7 0
2 years ago
We place 1.32 mol pcl5in a 1.0 l flask and allow it to reach equilibrium at a given temperature. what is the final concentration
Lady_Fox [76]
I have no idea, sorry
8 0
3 years ago
What happens when two positively charged objects move closer to each other?
Katena32 [7]

Answer: Objects with like charge repel each other.

6 0
2 years ago
Read 2 more answers
Fill in the blank Cells break down sugar and release ___________ into the plant.
katrin2010 [14]

Answer:

oxygen

Explanation:

8 0
2 years ago
Other questions:
  • A gaseous mixture at 265K and 1.0 atm contains 25 O2 60 N2 and 15 CO2 mole basis The velocities of the components are 0.084 cm s
    6·1 answer
  • Calculate the pH of 100.0 mL of a 0.150M aqueous solution of HNO3
    7·1 answer
  • I need help on this one plizz help me
    15·1 answer
  • What happens to the Subatomic particles of an object when it is charged by induction?
    14·1 answer
  • There are islands in the ocean that grow larger the Hawaiian islands are good examples of this the reason that the islands were
    14·1 answer
  • Two samples of carbon come into contact. Heat will transfer from Sample A to Sample B if the average kinetic energy of Sample A'
    5·2 answers
  • A 425-ml sample of hydrogen is collected above water at 35°c and 763 torr. find the volume of the hydrogen sample when the tempe
    5·2 answers
  • I was too afraid we wouldn't be let in if l corrected the man's pronunciation, but I said our name to myself, opening my mouth w
    5·2 answers
  • How many moles are in 272 grams of hydrogen peroxide (H2O2) ?
    5·1 answer
  • How you will devide the meterial based on their solubility​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!