Acetone (systematically named propanone)
<u>Answer:</u> The molarity of KBr solution is 0.605 M
<u>Explanation:</u>
Molarity is defined as the amount of solute expressed in the number of moles present per liter of solution. The units of molarity are mol/L.
The formula used to calculate molarity:
.....(1)
Given values:
Given mass of KBr = 54.0 g
Molar mass of KBr = 119 g/mol
Volume of the solution = 750 mL
Putting values in equation 1, we get:

Hence, the molarity of KBr solution is 0.605 M
Answer:
7.
D. remains of meteoroids that hit the Earth
8.
C. icy ball of rock that displays a coma, a fuzzy temporary atmosphere, or a tail
9.
A. silicon, oxygen, and at least one metal
10.
A. They are valuable minerals.
11.A. The resulting cloud would block out sunlight.
12.B. crater
13.A. Asteroid Belt
Answer:
how strong it is
Explanation:
Seismographs are not able to say when earthquake will happen, but they help humans to know how strong it is or if it is happening or not