EDTA is a synthetic amino acid and is a chelating agent. They are are capable of forming bonds with heavy metals in order to form very complex structures wherein the body could dispose easily in through the urine. It is used in removing lead, mercury, iron, aluminum and many other metals.<span />
Answer: 2.67 moles of Phosphine are produced
Explanation:
From the equation 3H2 + P2 → 2PH3
3 moles of hydrogen (H2) = 2 moles of Phosphine (PH3)
4 moles of hydrogen = X moles of PH3
Then, cross multiply
X moles of Phosphine = (4 x 2) / 3
= 8 / 3
= 2.67 moles
Thus, 4 moles of hydrogen produces 2.67 moles of Phosphine
a. mol O₂=0.5
b. volume O₂ = 25 cm³
c. i. the total volume of the two reactants = 75 cm³
c. ii. the volume of nitrogen dioxide formed = 50 cm³
<h3>Further explanation</h3>
Reaction
2NO(gas) + O₂(gas) ⇒ 2NO₂ (gas)
a.
mol NO = 1
From the equation, mol ratio NO : O₂ = 2 : 1, so mol O₂ :
b.
From Avogadro's hypothesis, at the same temperature and pressure, the ratio of gas volume will be equal to the ratio of gas moles
Because mol ratio NO : O₂ = 2 : 1, so volume O₂ :
c.
i. total volume of reactants : 25 cm³+ 50 cm³=75 cm³
ii. the volume of nitrogen dioxide formed :
mol ratio NO : NO₂ = 2 : 2, so volume NO₂ = volume NO = 50 cm³
Answer:
Endothermic
Explanation:
Heat is retained while exothermic means heat is released
<h2>Answer with Explanation</h2>
This hypothesis concludes that the sugar dissolves faster in warm solution has to do with increased molecular motion because the combined power in the warm solution makes molecules in water to travel quicker and sucrose molecules to fluctuate faster which produced a continued evolution favors to make the connections between sucrose molecules easier to succeed. The collisions between the water molecules and the sugar molecules are at a high rate due to increased temperature.
