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
Natali5045456 [20]
3 years ago
10

A generic salt, ab2, has a molar mass of 169 g/mol and a solubility of 1.10 g/l at 25 °c. what is the ksp of this salt at 25 °c?

Chemistry
1 answer:
GaryK [48]3 years ago
7 0
AB₂(s) ⇄ A²⁺(aq) + 2B⁻(aq)

Ksp=[A²⁺][B⁻]²

a=1.10 g/L
M=169 g/mol

c=a/M

[A²⁺]=c=a/M
[B⁻]=2c=2a/M

Ksp=(a/M)(2a/M)²=4(a/M)³

Ksp=4*(1.10/169)³=1.103×10⁻⁶
You might be interested in
Am i correct so far on the first question? And how do i convert to molecules... I use avogadro's number, right?
Talja [164]
I'm pretty sure that you multiply the number of moles by avogadro's number (6.02x10^23)... you may want to check.
4 0
3 years ago
29) What type of chemical reaction is given by the following balanced equation: Al2O3 → Al + O2
Law Incorporation [45]

Decomposition.

Decomposition is the chemical reaction in which a compound breaks down into the two elements or molecules that formed the compound. In this case, Dialuminium Trioxide has broken down into the basic components of Al2 and O2.

Hope this helps!

7 0
3 years ago
One mole of a metallic oxide reacts with one mole of hydrogen to produce two moles of the pure metal
aleksley [76]

Answer:

Lithium oxide, Li₂O.  

Explanation:

Hello!  

In this case, according to the given amounts, it is possible to write down the chemical reaction as shown below:

M_2O+H_2\rightarrow 2M+H_2O  

Which means that the metallic oxide has the following formula: M₂O. Next, we can set up the following proportional factors according to the chemical reaction:

 

Thus, we perform the operations in order to obtain:

\frac{10X}{(2X+16)}=2.32  

So we solve for x as shown below:

10X=2.32(2X+16)\\\\10X=4.64X+37.12\\\\X=\frac{37.12}{10-4.64}\\\\X= 6.93g/mol  

Whose molar mass corresponds to lithium, and therefore, the metallic oxide is lithium oxide, Li₂O.  

Best regards!

5 0
3 years ago
Classify each of the following as an observation, a law, or a theory. (a) All matter is made of tiny, indestructible particles c
umka21 [38]

Explanation:

An observation is defined as the process which explains how it is happening (qualitative) and and quantitatively able to measure something about the process.

A law is defined as a verified statement that will remain true under the mentioned circumstances as it is based on the past observations that are carefully tested.

A theory is defined as the explanation of an aspect of natural world that can be tested, modified or rejected as a result of further experiments.

Hence, the given statements are classified as follows.

(a) All matter is made of tiny, indestructible particles called atoms - Theory

(b) When iron rusts in a closed container, the mass of the container and its contents does not change - Observation

(c) In chemical reactions, matter is neither created nor destroyed - Law

(d)  When a match burns, heat is evolve - Observation

8 0
4 years ago
10.Give an example of an adaptation in birds, where shape of beak is related to the eating habits of that bird.
iVinArrow [24]

Answer:

It isn't only for the eating habits but also for building nests, hunting small insects, birds, other creatures including defence. Birds have a narrow small throat so the beak helps ripping off small peices of a big animal l(small bird) and for insects they crush and swallow it, they se their beak for feeding their children by grinding food in their beak and transferring it to the youngsters mouth

4 0
3 years ago
Other questions:
  • How many molecules (not moles) of NH3NH3 are produced from 6.09×10−4 gg of H2H2? Express your answer numerically as the number o
    5·2 answers
  • Which of the following statements is not a description of neptune?
    13·2 answers
  • A trial of this decomposition experiment, using different quantities of reactants than those listed in the question above produc
    15·1 answer
  • A balloon filled with helium gas at 20 °C occupies 4.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196°C, rai
    15·1 answer
  • The enzyme Y catalyzes the elementary reaction
    7·1 answer
  • A scientist wants to test the effectiveness of a medicine in treating
    9·1 answer
  • Write three points that how chemical fertilizer impact the environment ​
    15·1 answer
  • A. chlorine<br>B. sulfur<br>C. oxygen <br>D. none of these​
    5·1 answer
  • What happens when you mix silver nitrate and hydrochloric acid?
    9·2 answers
  • Describe the composition of humus and why it is an effective organic fertilizer.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!