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
cestrela7 [59]
2 years ago
15

Cho biết độ tan của NH4Cl trong nước ở 20oC và 70oC lần lượt là 37,2 g/100 gam nước và 60,2 gam/100 g nước. Hòa tan 166,8 gam NH

4Cl vào 400 gam nước ở 70oC thu được dung dịch X. Sau đó, hạ nhiệt độ dung dịch X xuống 20oC. Tính khối lượng (gam) NH4Cl kết tinh lại trong X?
Chemistry
1 answer:
Stolb23 [73]2 years ago
8 0

Answer: Hợp chất CTHH 0 °C 10 °C 20 °C 30 °C 40 °C 50 °C 70 °C

Actini(III) hydroxide Ac(OH)3   0,0022    

Amonia NH3 1176 900 702 565 428 333 188

Amoni azua NH4N3 16  25,3  37,1  

View 42 more rows  

                    hehe

You might be interested in
Which is true about metals used for jewelry, such as platinum and gold? A. They have low flammability. B. They have low reactivi
Morgarella [4.7K]

i think the answer is B. They have low reactivity.Hope this helped (:

8 0
2 years ago
Read 2 more answers
What change in energy occurs when you burn coal or petroleum??
expeople1 [14]
Chemical energy is converted to thermal energy.

4 0
2 years ago
Read 2 more answers
What is an example of turning chemical energy into light energy?
levacccp [35]
Chemical energy being changed into light energy would happen during phototsynthesis

5 0
3 years ago
The amount of dissolved salt in water is know as
Aleksandr [31]

Answer:

The water is solvent and the salt is solute

5 0
2 years ago
Read 2 more answers
Sorry this is a bit long
Anestetic [448]

The overall balanced reaction equation is;

4Zn(s) + 10H^+(aq) + NO3^-(aq) -----> 4Zn^2+(aq) + NH4^+(aq) + 3H2O(l)

<h3>What is the balanced reaction equation?</h3>

The redox reaction equation is said to be balanced when the number of electron gained is equal to the number of electrons lost.

Now;

1. Reduction and oxidation half-reactions

Zn(s) -----> Zn^2+(aq) + 2e

And

NO3^-(aq) ---->NH4^+(aq) + 3H2O(l)

2. Using the H2O and H+ to balance O and H;

4Zn(s) + 10H^+(aq) + NO3^-(aq) -----> 4Zn^2+(aq) + NH4^+(aq) + 3H2O(l)

3. Balancing the electrons lost and gained; 4Zn(s) + 10H^+(aq) + NO3^-(aq) + 8e -----> 4Zn^2+(aq) + NH4^+(aq) + 3H2O(l) + 8e

4. The overall balanced reaction equation is;

4Zn(s) + 10H^+(aq) + NO3^-(aq) -----> 4Zn^2+(aq) + NH4^+(aq) + 3H2O(l)

Learn more about redox reaction:brainly.com/question/13293425

#SPJ1

8 0
1 year ago
Other questions:
  • What does molarity measure the concentration of?
    12·2 answers
  • Which equation correctly defines Hooke's law?
    10·2 answers
  • In the chemical formula 2so2, how many total atoms of sulfur (s) are there? 1 2 4
    5·1 answer
  • What is a goal of the planned mission MIRI?
    13·2 answers
  • What are the factor responsible for the non usage of fusion to generate energy
    15·1 answer
  • How many unpaired electrons are in the following complex ions?
    12·1 answer
  • How heart attacks and Strokes caused by cholesterol​
    12·2 answers
  • HELP PLZZZZ GIVE BRAINLIST PLEZZ HELP!!!!!!!!!!!
    11·1 answer
  • Can the ratio of hydrogen to oxygen change if a solute is dissolved in the water
    13·1 answer
  • Z forms chloride compounds with the formulae ZCl2 and ZC13.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!