→
undergo a double replacement reaction and form a white, solid substance. Hence, option B is correct.
A double replacement reaction is a type of chemical reaction that occurs when two reactants exchange cations or anions to yield two new products.
Double-replacement reactions generally occur between substances in aqueous solution. In order for a reaction to occur, one of the products is usually a solid precipitate, a gas, or a molecular compound such as water.
→
undergo a double replacement reaction and form a white, solid substance.
Hence, option B is correct.
Learn more about the double replacement reaction here:
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Answer:
3.07 × 10⁻⁴
Explanation:
Step 1: Calculate the concentration of H⁺
We will use the definition of pH.
Step 2: Calculate the concentration of HY
5.22 × 10⁻³ mol of HY are dissolved in 0.088 L. The concentration of the acid (Ca) is:
Step 3: Calculate the acid dissociation constant (Ka)
We will use the following expression.
Answer:
The concentration of cyclobutane after 875 seconds is approximately 0.000961 M
Explanation:
The initial concentration of cyclobutane, C₄H₈, [A₀] = 0.00150 M
The final concentration of cyclobutane, [] = 0.00119 M
The time for the reaction, t = 455 seconds
Therefore, the Rate Law for the first order reaction is presented as follows;
Therefore, we get;
Which gives;
k ≈ 5.088 × 10⁻⁴ s⁻¹
The concentration after 875 seconds is given as follows;
[] = [A₀]·
Therefore;
[] = 0.00150 ×
= 0.000961
The concentration of cyclobutane after 875 seconds, [] ≈ 0.000961 M