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
Svetach [21]
3 years ago
7

When a 5.00-g sample of rbbr is dissolved in water in a calorimeter?

Chemistry
1 answer:
lilavasa [31]3 years ago
7 0
To answer this question, I found a similar problem as shown in the picture below. Let's use the given information: Heat capacity = 3.565 kJ/K, ΔT = 0.26 K. Also, the molar mass of RbBr is 165.372 g/mol.

The solution is as follows:

Molar Heat of Solution = (3.565 kJ/K)(0.26 K)(1/ 5 g)(165.372 g/mol)
<em>Molar Heat of Solution = 30.66 kJ/mol</em>

You might be interested in
Scientist looking for new substances in plants grind up the plants with methanol. This solvent dissolves many plant compounds. H
liubo4ka [24]

Answer:

See explanation

Explanation:

Crystals can be made from methanol by recrystallizing the plant extract from methanol.

The methanol/water system is heated rapidly using a hot plate and the plant extract dissolves in the heating solution until a clear solution is obtained.

The solution is now cooled rapidly. The interior of the flask used for the re crystallization may even by scratched to assist the quick formation of crystals. Large crystals of plant compounds may be obtained using this method. This process should be carried out in a fume hood because of the toxicity of methanol.

4 0
2 years ago
HELPPP!!!
lubasha [3.4K]

Answer:

11. A

12. B

13. D

14. E

15. C

8 0
2 years ago
What are the values of the missing force?
sweet [91]
B=150N A=12N………………………
7 0
3 years ago
When did the water level in Lake Mead become a concern?
xenn [34]

Answer:

in 1983, Lake Mead had a recorded water level of 1,225 feet above sea level. The closest it's been to that level in modern times was in 2000. Explanation:

6 0
2 years ago
An neutral atom has 40 protons and 10 neutrons what is the mass number
olya-2409 [2.1K]

Answer:

50

Explanation:

40-10 = 30…...…............

5 0
3 years ago
Read 2 more answers
Other questions:
  • At a certain temperature, the reaction 2NO + Cl2 ⇌ 2NOCl has an equilibrium constant Kc of 45.0. A chemist creates a mixture wit
    5·1 answer
  • Which statement about the gas laws is correct?
    8·1 answer
  • When compounds form, which of the following statements is true about the elements that form them?
    7·1 answer
  • Which statement best explains how atmospheric
    5·1 answer
  • Se tiene una solución acuosa 2M de carbonato de potasio. Expresar su concentración en %p/v y Normalidad.
    12·1 answer
  • What are the limitations of seed banks?
    15·1 answer
  • (b) on the graph above, carefully draw three curves, one for each of the three gases, starting from the initial point you drew i
    14·1 answer
  • Carbon monoxide (CO) _____.
    15·2 answers
  • What is the functional group of a carboxylic acid?
    13·1 answer
  • CH3CH3Li ionic or covalent
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!