The given question is incomplete. The complete question is:
Calculate the number of moles and the mass of the solute in each of the following solution: 100.0 mL of 3.8 × 10−5 M NaCN, the minimum lethal concentration of sodium cyanide in blood serum
Answer: The number of moles and the mass of the solute are
and
respectively
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

where,
n = moles of solute
= volume of solution in ml


n = moles of
= 


Thus the number of moles and the mass of the solute are
and
respectively
Answer:
The pressure of the gas would decrease
Explanation:
<span>Solids have molecules that are held tightly together in close bonds. (positive bonded to a negative) They can bend or vibrate but still stay bonded together closely. Solids have very little kinetic energy. </span>
<span>Liquids have molecules that are held in looser bonds. They move more freely and more randomly that in a solid. It is common for the bonds to be flexible enough to slide over each other. </span>
<span>Gasses have the loosest bond of any state of matter. The loose bonds allow the molecules to move freely and far apart. A gas has the greatest kinetic energy of any state of matter,</span>
D), because any GOOD <span>environmentalist doesn't CARE about tourist's.
</span>
Answer: Confidence, strength, potential
Explanation: