Answer: Diameter = 7 inches
Area of circle is 38.46 inches²
Explanation: The diameter is the radius x 2 3.5 x 2 = 7 inches
.
Hope this helps!!! Plz mark me!!!! Thx :)
Answer:
0.46M NaS₂O₃ (Assuming KIO₃ solution with a concentration of 1.0M)
Explanation:
Based on the reaction:
6 Na₂S₂O₃ + KIO₃ + 5 KI + 3 H₂SO₄ → 3 Na₂S₄O₆ + 3 H₂O + 3 K₂SO₄ + 6 NaI
<em>6 moles of Na₂S₂O₃ react per mole of KIO₃</em>
Assuming the molarity of the KIO₃ solution is 0,1M:
Moles of KIO₃: = 5.0x10⁻³L ₓ (0.1 mol / L) = <em>5.0x10⁻⁴ moles</em>
As 6 moles of thiosulfate reacted per mole of iodate:
5.0x10⁻⁴ moles KIO₃ ₓ (6 moles Na₂S₂O₃ / 1 mole KIO₃) =
<em>3.0x10⁻³ moles of Na₂S₂O₃. </em>In 6.5mL (6.5x10⁻³L):
3.0x10⁻³moles Na₂S₂O₃ / 6.5x10⁻³ L = 0.46M NaS₂O₃
Answer:
5.22*1022 molecules of glucose (C6H12O6) is equal to 15.08 grams
Explanation:
Number of molecule of glucose in one mole 
Now mass of one mole of glucose 
grams
Number of moles in 
molecules of glucose 
Number of moles in 
molecules of glucose = 
Number of moles in 
molecules of glucose = 
= 
moles
Weight of moles
grams
