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
mart [117]
4 years ago
11

Why was it necessary to make sure that some solid was present in the main solution before taking the samples to measure Ksp?

Chemistry
1 answer:
padilas [110]4 years ago
7 0

The question is incomplete, the complete question is;

Why was it necessary to make sure that some solid was present in the main solution before taking the samples to measure Ksp? Select the option that best explains why. Choose... A. To make sure no more sodium borate would dissolve in solution. B. To ensure the dissolution process was at equilibrium. C. To make sure the solution was saturated with sodium and borate ions. D. All of the above

Answer:

B. To ensure the dissolution process was at equilibrium.

Explanation:

The solubility product is a term used in chemistry to describe the equilibrium between the dissolved, dissociated and undissolved solute of a relatively low solubility ionic solid.

For an ionic solid MX, the solubility product is given as ;

MX(s) ----> M^n+(aq) + X^n-(aq)

If Ksp indeed scribes an equilibrium process for dissolution, it then implies that some undissolved solute must be present before samples are taken to measure the Ksp of a sample. This ensures equilibrium between dissolved and undissolved solute.

You might be interested in
A 40.27 g sample of a substance is initially at 24.8 °c. after absorbing 2099 j of heat, the temperature of the substance is 148
Darina [25.2K]
Q = mCΔT
Q is heat in joules, m is mass, C is specific heat, and delta T is change in temp

2099 J = (40.27g)(C)(148.5 - 24.8) = .421 J / gram K
6 0
3 years ago
How does an atom become a positively charged ion
sladkih [1.3K]
When, it donates electons.

as for example take
NaCl ( sodium chloride)

it's an ionic compund,
that means it is formed by donating or gaining electrons

Na is writen first than, it must be electropositive i.e it has donated electons which made it positive and the clorine gains electron so it's electronegative.

Na is positive because
as we know it's atomic number is 11 that means it has 11 protons and 11 electrons
now, when it donate electon it has, greater number of protons whose change is +ve so the atom becomes overall positively charged ion or cation.

and something same happens in clorine and because it gains one electron and the number of electrons increase in it by 1 whise charge is -ve so, the atom becomes negatively charged ion or anion which has a -1 charge.
3 0
3 years ago
What is the formula of the compound that occurs when Strontium and Chlorine combine<br> ionically?
Olenka [21]

Answer:

SrCl2

Explanation:

5 0
3 years ago
Mengapa garam NaNO2 dapat membirukan kertas lakmus merah? Jelaskan dengan reaksi kimianya!
Reika [66]
Can't understand this. English Please!  :) :)
8 0
3 years ago
Why would hand sanitizers not be as effective as detergents to clean your
deff fn [24]

Answer:

While both handwashing and hand sanitizing are good hygiene practices, each has its ... The difference between soaps and detergents lies in their ingredients and how they are made. ... Before handling clean equipment and serving utensils;; When changing tasks and switching ... Do not wash or rub it off on your clothes.

Explanation:

4 0
3 years ago
Other questions:
  • Why do atoms share electrons in covalent bonds?
    6·2 answers
  • (REALLY NEED HELP 30 POINTS )If the mass of a material is 12 grams and the volume of the material is 49 cm^3, what would the den
    12·2 answers
  • Where do the catabolic products of fatty acid breakdown enter into the citric acid cycle?
    6·1 answer
  • Identify the type of bonding, molecular geometry (shape), and intermolecular forces experienced by the compounds HF and HBr. Whi
    6·1 answer
  • What is a molecular orbital? Question 3 options: Another method of describing the orbitals of individual atoms A mixing of the a
    12·1 answer
  • The reaction          3 BrO- (aq) --&gt; BrO3- (aq) + 2 Br - (aq) in basic solution is second order in BrO-(aq) with a rate cons
    14·1 answer
  • An organism that makes its own food
    15·1 answer
  • Camphor (C10H16O) melts at 179.8°C, and it has a particularly large freezing-point-depression constant, Kf= 40.0ºC/m. When 0.186
    11·2 answers
  • What do all properties of matter have in common
    15·2 answers
  • How many grams of NaNO3 can be dissolved in 200mL of water at 40 degrees Celsius?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!