Answer:
Check the explanation
Explanation:
cell CuE Ecell 0.337 (-0.14) Ecl0.477 V
Since 
, the value of \Delta G^o will be negative.
.....(1)
But
......(2)
From (1) and (2)
ln K =
ln K =
ln K =37.139
K =
Hence, the value of the equilibrium constant is 
Answer:
1. 0.74mol
2. 0.42mol
3. 2.125mol
4. 0.301mol
5. 4.52 × 10^23 particles
Explanation:
Number of moles (n) in a substance can be found using the formula:
mole (n) = mass/molar mass
Using this formula, the following moles are calculated:
1. Molar of Na = 23g/mol
mole = 17/23
mole = 0.74mol
2. Molar mass of Na2SO4 = 23(2) + 32 + 16(4)
= 46 + 32 + 64
= 142g/mol
Mole = 60/142
mole = 0.42mol
3. Molar mass of CO2 = 12 + 16(2)
= 12 + 32
= 44g/mol
mole = 93.5/44
mole = 2.125mol
4. Molar mass of sodium nitrate (NaNO3) = 23 + 14 + 16(3)
= 23 + 14 + 48
= 85g/mol
mole = 25.6/85
mole = 0.301mol
5. Number of particles in one mole of a substance is 6.022 × 10^23 particles. Hence, in 0.75mol of calcium hydroxide (Ca(OH)2, there will be;
0.75mol × 6.02 × 10^23
= 4.515 × 10^23
= 4.52 × 10^23 particles
A. <span>principal energy level, sublevel, orbital, electron</span>
Bromine atom, Br has 35 electrons
In Se there are 34 electrons and if it gain one electron and get negative charge then it has 35 electrons. So the symbol of anion wit 35 electrons is
Se⁻ has 35 electrons
<span>Another anion, no longer solid as quickly as back is As</span>²⁻
<span>As has 33 electrons and the two negatives shows now it has 35 electrons.</span>
