Answer:
The pOH is 4, 44 and the solution is basic.
Explanation:
The pOH is a measure of the concentration of OH (hydroxyl) ions in the solution.
The pOH is calculated as :
pOH = -log (OH-)= -log (3.67 x 10-5 )= 4, 44. In this case, the solution is basic.
The p0H scale ranges from values of 0 to 14 (less than 7.0 is basic and greater than 7.0 is acidic, a pH = 7.0 is neutral)
The mass of dinitrogen tetroxide the number of Nitrogen atoms are 46 x 10^9 gram
Given:
number of nitrogen atoms = 1 x 10^12 atoms
To Find:
mass of dinitrogen tetroxide
Solution:
From the molecular formula of dinitrogen tetraoxide;
molar mass of dinitrogen tetraoxide = 92 g/mol
92 g of dinitrogen tetraoxide contains 2 atoms of nitrogen
x g of dinitrogen tetraoxide will contain 1 * 10^12 atoms of nitrogen
x = 92*1* 10^ 9/2
x = 46 x 10^9 gram
Hence, the number of Nitrogen atoms are
Hence, the number of Nitrogen atoms are 46 x 10^9 gram
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