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A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.
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Answer:
The pH of the resulting solution is 12.52.
Explanation:
n = number of moles
V = volume of the solution in Liters
1)1 mol of HCl gives 1 mol of hydrogen ion.
Concentration of the hydrogen ion = 0.1 M
Volume of the solution = 10 mL = 0.010 L
Moles of hydrogen ions = = 0.001 mol
2) 1 mol of NaOH gives 1 mol of hydroxide ion.
Concentration of the Hydroxide ions = 0.2 M
Volume of the solution ,V'= 8 mL = 0.008 L
Moles of hydroxide ions ,n ' = 0.0016
1 mol of HCl neutralizes 1 mol of NaOH ,then 0.001 mol of HCl will neutralize 0.001 mol NaOH.
So left over moles of hydroxide ions in the solution will effect the pH of the solution:
Left over moles of hydroxide ions in the solution = 0.0016 mol - 0.0010 mol = 0.0006 mol
Left over concentration of hydroxide ions:
pH +pOH = 14
pH = 14 - 1.48 = 12.52
The pH of the resulting solution is 12.52.
Ampere is the si unit of current
Answer:
n= | Shell | Maximum Number of Electrons
1 | 1st Shell | 2
2 | 2nd Shell | 8
3 | 3rd Shell | 18
4 | 4th Shell | 32
Explanation: cause :)