Answer:
seven on the ph scale is the neutral point
Explanation:
The range goes from 0 - 14, with 7 being neutral. pHs of less than 7 indicate acidity, whereas a pH of greater than 7 indicates a base. pH is really a measure of the relative amount of free hydrogen and hydroxyl ions in the water.
The answer is protons(it always has a positive charge)hope that helps. :)
The concentration in /mmolL of the chemist's silver(I) nitrate solution is 0.01047 mmoles/litre.
Explanation:
Data given:
Number of moles of AgNO3 in micro mole 4.7102micromol.
The concentration is supposed to be in mmol so the micromole will be converted to milimole.
So, 1 micromole = 0.001 millimole
hence, 4.712micromole will be 0.004712 millimole.
Volume is given as 450ml which is converted into L
to convert ml into L it is divided by 1000
so 0.45 L is the volume.
Molarity or concerntration is calculated by the formula,
molarity =
putting the values in the formula:
molarity = 
= 0.01047 mmoles/litre is the molarity of AgNO3 solution in 450 ml of solution.
The Bronsted base in H2S +H2O → H3O^+ + HS^- is H2O
Explanation
According to Bronsted Lowry definition of an base , that is a base is a compound that act as a protons acceptor. These protons are in form of hydrogen ions . H2O in the above equation accept one hydrogen ions to form H3O^+
The question is incomplete, here is the complete question:
Consider the reaction
Initially,
= 3.60 M; at equilibrium
. Calculate the equilibrium concentration for 
<u>Answer:</u> The equilibrium concentration of ammonia is 2.8 M
<u>Explanation:</u>
We are given:
Initial concentration of
= 3.60 M
Initial concentration of
= 3.60 M
For the given chemical equation:

Initial: 3.60 3.60
At eqllm: 3.60-4x 3.60-7x 2x 6x
We are given:
Equilibrium concentration of
= 0.60 M
Evaluating the value of 'x'

So, equilibrium concentration of 
Hence, the equilibrium concentration of ammonia is 2.8 M