Answer:
0,31%
Explanation:
For the reaction:
I₂ + 2 S₂O₃²⁻ → 2 I⁻ + S₄O₆²⁻
0,043 L × 0,117 M of sodium tiosulfate = 5,031x10⁻³ moles of S₂O₃²⁻
5,031x10⁻³ moles of S₂O₃²⁻ × 
= <em>2,5156x10⁻³ moles of I₂</em>
These moles of I₂ were produced from:
ClO⁻⁻ + 2 H⁺ + 2 I⁻ → I₂ + Cl⁻ + H2O
2,5156x10⁻³ moles of I₂ ≡ moles of NaClO
2,5156x10⁻³ moles of NaClO ×
=<em> 0,187 g of NaClO</em>
Thus, percentage composition by mass is:
=<em> 0,31%</em>
I hope it helps!
Answer:
Explanation:
Imagine a chemistry set in front of you
False you should only tell your teacher
You should not wear dangling jewelry and loose clothing and sandals so all of the above. Jewelry what if your leaning over to get something it will get caught Sandals what if glass falls and breaks in your foot and loose clothing it will get caught on fire. You should never horseplay ever. You should see the school nurse if you get hurt.
Hope this helps a little :)
If a star is located 100 light years from Earth, the light will take 100 years to reach Earth.
I hope this helps !
In common we all call the systematic name of NH4ClO3 as Ammonium Chlorate. But originally the systematic name is azanium trioxidochlorate.
Thermal energy is the correct answer
