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
8_murik_8 [283]
3 years ago
11

What is the mass percent of calcium chloride if 57 g of CaCl2 is dissolved in 334 g of water?

Chemistry
1 answer:
Zarrin [17]3 years ago
6 0

Answer:

Solubility in water Anhydrous: 74.5 g/100 mL (20 °C) Hexahydrate: 49.4 g/100 mL (−25 °C) 59.5 g/100 mL (0 °C) 65 g/100 mL (10 °C) 81.1 g/100 mL (25 °C) 102.2 g/100 mL (30.2 °C) α-Tetrahydrate: 90.8 g/100 mL (20 °C) 114.4 g/100 mL (40 °C) Dihydrate: 134.5 g/100 mL (60 °C) 152.4 g/100 mL (100 °C)

You might be interested in
When a aqueous solution of a certain acid is prepared, the acid is dissociated. Calculate the acid dissociation constant of the
stepan [7]
<h2>K_a = \dfrac{[H^{+}] [A^{-}]}{[HA]}</h2>

Explanation:

  • When an aqueous solution of a certain acid is prepared it is dissociated is as follows-

        {\displaystyle {\ce {HA  ⇄  {H^+}+{A^{-}}}  }}

Here HA is a protonic acid such as acetic acid, CH_3COOH

  • The double arrow signifies that it is an equilibrium process, which means the dissociation and recombination of the acid occur simultaneously.
  • The acid dissociation constant can be given by -

        K_a = \dfrac{[H^{+}] [A^{-}]}{[HA]}

  • The reaction is can also be represented by Bronsted and lowry -

         \\{\displaystyle {\ce {{HA}+ H_2O} ⇄  [H_3O^+] [A^-]

  • Then the dissociation constant will be

        K_a = \dfrac{[H_3O^{+}] [A^{-}]}{[HA]}

Here, K_a is the dissociation constant of an acid.

6 0
3 years ago
42. Proton and electuron.
Sauron [17]

Answer:

Protons:

- positive

- aka cation

- in the nucleus along with the neutrons

Electrons:

- negative

- aka anion

- situated in the orbital shells/configuration levels (there are many names)

7 0
2 years ago
What is the difference between a theory and a law?​
kondaur [170]

Answer:

theory is diffrent from law

Explanation:

a Theory can never be proven to be true nd a law can usually be expressed

3 0
3 years ago
What gas is necessary for combustion to take place
madreJ [45]
Oxygen for complete combustion
6 0
3 years ago
Read 2 more answers
How can you explain what happened?
galina1969 [7]

Answer:

What do you mean what happened?

Explanation:

???

3 0
3 years ago
Other questions:
  • When an oxygen atom forms an ion, it gains two electrons. Identify the electrical charge of the oxygen ion.
    11·2 answers
  • When bacteria are decomposing animal waste, the level of ___________ rises. phosphate nitrate nitrite dissolved oxygen ammonia t
    5·1 answer
  • A decrease in pressure has the greatest effect on a solution that contains.. ?
    14·1 answer
  • How much co2 is realsed by burning trash
    7·1 answer
  • Limestone is used to make cement and mortar. <br> a. True <br> b. False
    15·1 answer
  • Controls are defined as____
    14·1 answer
  • Consider the reaction below for which K = 78.2 atm-1. A(g) + B(g) ↔ C(g) Assume that 0.386 mol C(g) is placed in the cylinder re
    13·1 answer
  • What element produces violet light of approximately 412 nm?
    8·2 answers
  • Describe how the periodic
    9·1 answer
  • The picture below shows Enchanted Rock, a pink granite rock formation located in the Llano Uplift ecoregion. This land is most l
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!