What is colloidal solutions


Answer 1


Colloidal solutions, or colloidal suspensions, are nothing but a mixture in which the substances are regularly suspended in a fluid. ... Colloidal systems can occur in any of the three key states of matter gas, liquid or solid. However, a colloidal solution usually refers to a liquid concoction.

Answer 2


Colloidal solutions, or colloidal suspensions, are nothing but a mixture in which the substances are regularly suspended in a fluid.

Related Questions

A mass of 34.05 g of H2O(s) at 273 K is dropped into 185 g of H2O(l) at 310. K in an insulated container at 1 bar of pressure. Calculate the temperature of the system once equi- librium has been reached. Assume that CP, m for H2O is con- stant at its values for 298 K throughout the temperature range of interest.
What is the potentual energy of 7 kg object, 12 m off the ground?​
All light travels at the same speed.O TrueO False
Calculate the volume of 0.100 m hcl required to neutralize 1.00 g of ba(oh)2 (molar mass = 171.3 g/mol).
An element x is found to have a mass number of 31 and atomic number of 17. idenrify the group and the period to which it belongs?​

3Identify the ions present in K2HPO4.
1) K+ and H+ and PO43-
2) K 2+ H+, and PO43-
3) K+, H+, p3-, and O2-
4) K2H3+ and PO43-
5) K2HPO4 is not ionic.



K⁺ and HPO₄²⁻ ions are present in K₂HPO₄


K₂HPO₄ consist of anion and cation such as HPO₄²⁻ and  K⁺. We can see that the charge on HPO₄²⁻ is negative 2. Thus inroder to balance the charge and to neutral the compound two potassium ions are attached because the charge on one atom of potassium is K⁺.

Properties of K₂HPO₄ :

It is salt of phosphoric acid.

Its density is 2.44 g/cm³.

It is odourless compound.

It is white powder and soluble in water.

It is used in fertilizer because it provide phosphorus which is beneficial for the growth of plants.

It is also used as a additive in food.

It is inorganic compound and also used as buffering agent.

Final answer:

The correct ions present in K2HPO4 are K+, H+, and PO43-. Here, potassium (K+) ions, hydrogen (H+) ion and phosphate (PO43-) ion are released.


The compound K2HPO4 dissociates in water to form ions. The correct answer from your selection would be the first one. When K2HPO4 is added to water, it dissociates into its ions 'K+' (Potassium), 'H+' (Hydrogen) and 'PO43-' (Phosphate). So, the ions present in K2HPO4 are K+, H+ and PO43-. Please note that K2HPO4 is also called dipotassium hydrogen phosphate.

Learn more about Ionic Dissociation here:



At 25.0 ⁰C the henry's law constant for hydrogen sulfide(H2S) gas in water is 0.087 M/atm. Caculate the mass in grams of H2S gas that can be dissolved in 400.0 ml of water at 25.00 C and a H2S partial pressure of 2.42atm.


Answer: The mass of hydrogen sulfide that can be dissolved is 2.86 grams.


Henry's law states that the amount of gas dissolved or molar solubility of gas is directly proportional to the partial pressure of the gas.

To calculate the molar solubility, we use the equation given by Henry's law, which is:

C_(H_2S)=K_H* p_(liquid)


K_H = Henry's constant = 0.087M/atm

p_(H_2S) = partial pressure of hydrogen sulfide gas = 2.42 atm

Putting values in above equation, we get:

C_(H_2S)=0.087M/atm* 2.42atm\n\nC_(H_2S)=0.2105M

To calculate the mass of solute, we use the equation used to calculate the molarity of solution:

\text{Molarity of the solution}=\frac{\text{Mass of solute}* 1000}{\text{Molar mass of solute}* \text{Volume of solution (in mL)}}

We are given:

Molarity of solution = 0.2105 M

Molar mass of hydrogen sulfide = 34 g/mol

Volume of solution = 400.0 mL

Putting values in above equation, we get:

0.2105M=\frac{\text{Mass of hydrogen sulfide}* 1000}{34g/mol* 400.0mL}\n\n\text{Mass of }H_2S=(0.2105* 34* 400)/(1000)=2.86g

Hence, the mass of hydrogen sulfide that can be dissolved is 2.86 grams.

Question 6 (5 points)In comparison to steam, ice has
A) less kinetic energy.
more kinetic energy.
more total energy.
D) the same total energy.


A, I think
Ice cream is colder and steam is warmer, something cold has the atoms moving slower which means it has less kinetic energy.
Hope this helps!


its not more kinetic energy i put that and got it wrong

Jaxson needs to react 16.3 moles of copper (II) nitrate, Cu(NO3)2, in a chemical reaction. How many grams of crystalsdoes he need to weigh out?





Problem here is to find the mass of Cu(NO₃)₂ to weigh out to make for the number of moles.


Number of moles  = 16.3moles


Mass of Cu(NO₃)₂ = ?


To find the mass of Cu(NO₃)₂, use the expression below;

    Mass of Cu(NO₃)₂ = number of moles x molar mass

Let's find the molar mass;

  Cu(NO₃)₂ = 63.5 + 2[14 + 3(16)]

                    = 63.5 + 2(62)

                    = 187.5g/mol

Mass of  Cu(NO₃)₂ = 16.3 x 187.5  = 3056.25g

The federal limit for cadmium in drinking water is 0.010 mg per liter of solution. What is the molar concentration of a Cd solution that has reached the limit?


Thank you for posting your question here. The molar concentration of a Cd solution that has reached the limit is  8.89x10^-8 mols/L. The equation to be used  M=n/L to solve the above problem. Below is the solution:

.010mg/L = .00001g/L 
.00001g / 112.41g/mol = 8.89x10^-8 mols/L 





In this case, one can assume 1L as the volume of the solution, so we've got 0.010mg of cadmium. Now, as we're asked to know its molarity, one computes the moles of cadmium as follows:


Now, one obtains the molar concentration (molarity) as shown below:M=(8.9x10^(-8)molCd)/(1L)\n M=8.9x10^(-8)M

Best regards.

Which is the weakest type of intramolecular force/bond?a. Polar covalent b. Ionic c. Metallic d. Nonpolar covalent



Non polar covlant