Answer:
0.075 moles of EDTA are left.
Explanation:
To solve this problem we need to use the definition of Molar concentration (M):
M=
With that equation in mind, in the problem we're given two out of the three factors: Concentration and Volume. We're asked to calculate the remaining factor.
Before we calculate we convert 150 mL to L, so we divide 150 by 1000.
Lastly we calculate the number of moles of EDTA left:
0.5 M * 0.150 L = 0.075 moles.
The answer is c. hydrogen is flammable and dangerous
The density of crystal is 2.65 g / mL
we know that
Density = Mass / Volume
So volume occupied = Mass / density
Mass of crystal = 4.46 g
So volume occupied by crystal = 4.46 / 2.65 = 1.68 mL
As the graduated cylinder contains water upto 25.0 mL
So if we immerse the crystal in that cylinder the water level will rise to 25+1.68 = 26.68mL
so the new read will be 26. 68 mL
Whichever one has the smallest amount of H+ Ions.
Answer: Special care is required to prepare a solution of sodium hydroxide or NaOH in water because considerable heat is liberated by the exothermic reaction. The solution may splatter or boil. Here is how to make a sodium hydroxide solution safely, along with recipes for several common concentrations of NaOH solution.
Explanation:
Hope this helps!