The solid compound, K2SO4 contains a cation called K+ and an anion called SO42-. In this case, there are 2 atoms of potassium, 1 atom of sulfur and 4 moles of oxygen. The compound also contains ionic bonds because of the composing non-metals and metal.
Balanced chemical equation is as;
<span> 2 Kl + Cl</span>₂ → <span>2 KCl + I</span>₂
1) Moles of I₂<span> produced;
22.4 L volume is occupied by</span> = 1 mole of I₂ at STP
So,
8.5 L of I₂ will be occupied by = X mole of I₂ at STP
Solving for X,
X = (8.5 L × 1 mol) ÷ 22.4 L
X = 0.379 Moles of I₂
2) Moles of Cl₂ used;
22.4 L I₂ utilized = 1 mole of Cl₂ gas
So,
8.5 L of I₂ will utilize = X mole of Cl₂ gas
Solving for X,
X = (8.5 L × 1 mol) ÷ 22.4 L
X = 0.379 Moles of Cl₂
3) <span>Grams of Cl</span>₂<span> used;
As,
Moles = Mass / M.mass
Or,
Mass = Moles </span>× M.mass
Mass = 0.379 mol × 70.90 g.mol⁻¹
Mass = 26.87 grams of Cl₂
Answer:
XY₂Z₄
2.35 mol Z
Explanation:
A sample of the compound contains 0.221 mol X, 0.442 mol Y, and 0.884 mol Z. We can find the simplest formula (empirical formula) by <em>dividing all the numbers of moles by the smallest one</em>.
X: 0.221/0.221 = 1
Y: 0.442/0.221 = 2
Z: 0.884/0.221 = 4
The simplest formula is XY₂Z₄.
The molar ratio of X to Z is 1:4. The moles of Z in a sample that contained 0.588 moles of X is:
0.588 mol X × (4 mol Z/1 mol X) = 2.35 mol Z
A monocrop is a non example of biodiversity because it contains only one species, such as all corn, therefore there is very little biodiversity.
Answer:
A. There is more dissolved oxygen in colder waters than in warm water.
D. If ocean temperature rise, then the risk to the fish population increases.
Explanation:
Conclusion that can be drawn from the two facts stated above:
*Dissolved oxygen is essential nutrient for fish survival in their aquatic habitat.
*Dissolved oxygen would decrease as the temperature of aquatic habit rises, and vice versa.
*Fishes, therefore, would thrive best in colder waters than warmer waters.
The following are scenarios that can be explained by the facts given and conclusions arrived:
A. There is more dissolved oxygen in colder waters than in warm water (solubility of gases decreases with increase in temperature)
D. If ocean temperature rise, then the risk to the fish population increases (fishes will thrive best in colder waters where dissolved oxygen is readily available).
