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
Fofino [41]
3 years ago
8

If the concentration of a saturated solution at 0∘C is 12.5 gCuSO4/100 g soln, what mass of CuSO4⋅5H2O would be obtained? [Hint:

Note that the solution composition is stated in terms of CuSO4 and that the solid that crystallizes is the hydrate CuSO4⋅5H2O.]
Chemistry
1 answer:
Andrew [12]3 years ago
7 0

Answer:

Mass of CuSO4.H2O obtained: m_{total}=19.52 g

Explanation:

The molecular weight of the salt is: M=159.5 g/mol

<u>In the solution</u>: 12.5 g of CuSO4

In moles: n=\frac{12.5 g}{159.5 g/mol}=0.078 mol

<u>Mass of wate</u>r:

5 moles of water per mol of salt: m=\frac{5mol}{1mol}*0.078mol*\frac{18g}{mol}=7.02 g

Mass of CuSO4.H2O obtained: m_{total}=12.5 g + 7.02 g=19.52 g

You might be interested in
Pls help me I don’t understand it’s for my science class.
olchik [2.2K]

Answer:

gold - element

nickel- element

6 0
2 years ago
What do sodium and magnesium have in common?
lara [203]

Answer:

daddy will help

Explanation:

uhhhhhhhhhhhhhhhhhhh

7 0
2 years ago
Question # 10
satela [25.4K]
The answer should be D, cells can only create an identical copy of the original cell.
3 0
3 years ago
Write a balanced chemical equation, including physical state symbols, for the decomposition of solid calcium carbonate (CaCO_3)
nadya68 [22]

Answer:

CaCO₃(s) → CaO(s) + CO₂(g)

Explanation:

The decomposition reaction always make two compounds from one.

The products always have simpler chemical structure, originated from a determined compound. This can happens  spontaneously or by a third party.

A notable example of decomposition is hydrolysis. As for example the case of water, which decomposes and generates oxygen and hydrogen gas

2H₂O (l) → 2 H₂ (g) + O₂ (g)

In this case, the calium carbonate decomposes into CaO and CO₂

These two, are the products of the decomposition.

Of course, the unique reactant is the Calcium Carbonate

The balanced equation is:

CaCO₃(s) → CaO(s) + CO₂(g)

6 0
3 years ago
Read 2 more answers
Given what you observe at the molecular/atomic level, why would surface area have this effect?
LenKa [72]

Answer:

Increasing the surface area of a reactant increases the frequency of collisions and increases the reaction rate. Several smaller particles have more surface area than one large particle. The more surface area that is available for particles to collide, the faster the reaction will occur.

Explanation:

:)

5 0
2 years ago
Other questions:
  • In the compounds formed by li, na, k, rb, and cs with chlorine, how many atoms of cl are there per atom of the metal?
    13·1 answer
  • In an experiment, onion plants of different ages were exposed to various amounts of caffeine to determine the effect of caffeine
    7·1 answer
  • What kind of object has an indefinite shape and indefinite volume?<br> IH
    14·1 answer
  • Examine the peptide. Thr‑Glu‑Pro‑Ile‑Val‑Ala‑Pro‑Met‑Glu‑Tyr‑Gly‑Lys Thr‑Glu‑Pro‑Ile‑Val‑Ala‑Pro‑Met‑Glu‑Tyr‑Gly‑Lys Write the s
    12·1 answer
  • Avogadro’s law and Charles’s law describe a proportionality of the volume of a gas when the pressure is constant. Which describe
    10·1 answer
  • What is the difference between double salt and complex salt​
    12·1 answer
  • Alguien me puede hacer el favor de ayudarme con estos 3 ejercicios de balanceo de ecuaciones por oxido reducción por favor 1. Fe
    10·1 answer
  • How many moles of each element are in one mole of (NH4)2S? (3 points)
    5·2 answers
  • What is it called when only the needed genes are transcribed and translated in
    6·1 answer
  • How long does carbon dioxide stay in the atmosphere.
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!