Answer:
CuSO4(aq)
Explanation:
The aqueous for of CuSO₄ is an electrolyte and it will conduct electricity.
CuSO₄ is an ionic substance and in solid state, it will not have the ability to conduct electricity.
- In aqueous form, it will contain free mobile ions which serves as carriers of electric current.
- In the solid state, the ions are arranged into a crystal lattice and will not conduct a current of electricity.
- The remaining given compounds will not conduct electricity as they are non-polar and do not have free mobile electrons.
Answer:
200 g of NaOH
Explanation:
For this solution of NaOH
2.50 M means that in 1L of solution, we have 2.5 moles
Mol . molar mass = Mass
2.5 m . 40 g/m = 100 grams
In 1 L, we have 100 grams of solute, so in 2L, we have the double
200 g of NaOH
Answer:
as beaker is open so
As ψof solution is lower than the root tissue so water will move out of the root to the solution
Explanation:
yes i think he is real but it is what you think
Answer:
30 moles of ethanol are needed to prepare a 25 m solution, using 1200 g of water
Explanation:
This a short problem of solutions:
Our solute is ethanol: C₂H₅OH
Our solvent is water-
25 m, is our solution's concentration. m means molality (moles of solute contained in 1kg of solvent).
Our solvent mass is 1200g. We convert them to kg
1200 g . 1kg / 1000g = 1.2 kg
m = mol/kg → mol = m . kg
mol = 25 mol/kg . 1.2kg →30 moles
