Answer:
3.59 moles
Explanation:
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Mark as brainliest if right!
Answer:
I don't understand your questions
Answer:
All of the above.
Explanation:
Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances.
This process is not reversible and a change of energy that is sometimes heat is given off.
Answer: Amount of volume needed in Litres is 0.09L
Explanation:
Given that the concentration in Mol/L =3.67M
Mass of K2SO4 = 57.3g
Molar mass of K2SO4 = 174.01g/mol
From stochiometry,
Mole = Mass/Molar mass
Mole = 57.3/174.01= 0.33mol.
Concentration in mol/L=
Mole/volume
3.67=0.33/volume
Volume= 0.33/3.67
Volume = 0.09L
Therefore the volume of K2SO4 needed is 0.09L
A solution with hydroxide ion concentration of 4.15 x10^-6 m is basic and has a hydrogen ion concentration of 2.41 x10^-9 M
we well know thaat (H^+) (OH^-) = 1 x10^-14
by making H^+ concentration the subject of the formula
H^+ = 1 x10^-14/OH^-
H^+= 1 x10^-14/4.15 x10^-6 = 2.41 x10^-9 M
the solution is basic since OH^- ion is for basic solution