The reaction equation:
2H₂O + 2Na₂O₂ → 4NaOH + O₂
Moles of sodium peroxide = 10 / 78 = 0.128
Moles of oxygen released = 0.128 / 2 = 0.064 mol
Mass of oxygen = 0.064 x 32
Mass of oxygen = 2.05 grams
Answer:
In an equilibrium mixture of the three gases, PCO = PCl2 = 2.22 × 10-4 atm. The partial pressure of the product, phosgene (COCl2), is kp=(COCl2)/(CO)(Cl2) which is . So, the correct answer is 7.34.
<em>Answer:</em>
- Pivalic acid forms a strong conjugate base.
<em>Explanation:</em>
- Strong acid has weak conjugate base
- Weak acid has strong conjugate base
As in this case, pivalic acid is weak acid (Due to electron donating effect of <em>tert.</em> butyl group) having pka value of 5.0 , so its conjugate base will be strong as compare to formic acid which is stronger acid.
<em>Summary: </em>
- As pivalic acid is weak acid as compare to formic acid, so its conjugate base will be strong and vice versa.
Nobody specifically made the periodic table but it was first thought of by Dmitri Mendeleev in 1869.
Mass is never created or destroyed