ANSWER
The wavelength of the earthquake wave is 1000 m
EXPLANATION
From the question;
the speed,
frequency,
The relationship between wavelength,frequency and speed of a wave is given as
This implies that,
Hence the wavelength of the earthquake wave is
<span>1.67 x 10^-3 moles
Calculate the molar mass of C9H8O4
Carbon = 12.0107
Hydrogen = 1.00794
Oxygen = 15.999
C9H8O4 = 9 * 12.0107 + 8 * 1.00794 + 4 * 15.999 = 180.1558
Now divide the mass you have by the molar mass
0.300 g / 180.1558 g/mole = 1.665225 x 10^-3
Round to 3 significant figures
1.67 x 10^-3</span>
Answer:
[K₂SO₄] = 2.50 M
Explanation:
We define the moles of solute: 6.01 mol of K₂SO₄
We define the solution's volume: 2.40L
To find out molarity we can make this rule of three:
In 2.40L of solution we have 6.01 moles of sulfate
Then, in 1L we have (6.01 . 1) / 2.4 = 2.50 M
Molarity is a sort of concentration that indicates the moles of solute in 1L of solution
According to the beer-lambert law when its concentration increases so does the absorbance increase.
beer-lambert law states that the amount of energy absorbed or transferred by a solution is proportional to the molar absorptivity of the solution and the concentration of the solute.
This means that concentrated solutions absorb more light than dilute solutions.
so the According to the beer-lambert law concentration increases, so does the absorbance. Therefore, absorbance is directly proportional to concentration.
learn more about beer-lambert law at brainly.com/question/8831959
#SPJ4
Answer:
b. 9 g
Explanation:
Solubility Ce2(SO4)3 at 10°C is a little less than 10 g/100 g water.
So, the best answer is b. 9 g.