Answer:
A. 8.4
Explanation:
[OH⁻] = 2.6 × 10⁻⁶ Take the negative log of each side
-log[OH⁻] = pOH = 5.59 Apply the pH/pOH relation
pH + pOH = 14.00 Insert the value of pOH
pH + 5.59 = 14.00 Subtract 5.59 from each side
pH = 14.00 -5.59 = 8.41
One example of a solution<span> is </span>salt water<span> which is a </span>mixture<span> of </span>water<span> and </span>salt<span>. You cannot see </span>the salt<span> and </span>the salt<span> and </span>water<span> will stay a </span>solution<span> if left alone. Parts of a</span>Solution<span>. Solute - The solute is the substance that is being </span>dissolved<span> by another substance.</span>
Answer:
68g/mol
Explanation:
The formula of ammonium sulfide is:
Ammonium sulfide = (NH₄)₂S
The molar mass of a compound is the mass in gram of one mole of the substance. In a compound, it is expressed gram formula mass or gram-molecular weight.
It is determined by the addition of the component atomic masses and then expressed in grams;
Atomic mass of N = 14, H = 1 and S = 32
(NH₄)₂S = 2[14 + 4(1)] + 32 = 36 + 32 = 68g/mol
Answer:
a :Chemical b : compound
Explanation:
a : it had to be a chemical change because it says "There is no change in
the appearance of the solid, but the reactivity of the material changes.
b : well it would be a compound because it would have to be to make a reaction
Answer:
dont question the world kid
Explanation:
