Your answer would be,
Formula: Molarity (M) = Number of moles of solute/Solutions volume Liters
0.009(50) = .45 gm dissolved in 50 ml H2o
= 0.20(50) = 10 gm
Hope that helps!!!
Answer:
2.61 L
Explanation:
p1v1 = p2v2
p1v1 / p2 = v2
98 * 2 / 75 = v2 = 2.61 L
From the gas law, PV=nRT we can say that P(pressure), V(volume) and T (temperature) are related to each other. The initial volume of sample is 408 ml
Given that initial volume of the sample = V1
initial pressure of the sample = 0.92atm
initial temperature of the sample = 23.2oC
Final pressure of the sample = 1.3atm
Final temperature of the sample = 40.1 oC
Final volume of the sample = 500ml = 0.5L
Using the relation P1V1/T1 = P2V2/T2
V1 = 1.3x0.5x23.2/40.1x0.92 = 15.08/36.892 = 0.408
Hence the initial volume of sample = 408 ml
To learn more about pressure click here brainly.com/question/12971272
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Answer:
[9x² - 2x + 8]/2x(x - 2).
Explanation:
- To do this calculation process:
We should common the denominator by multiplying the denominators of the two terms (2x)(x - 2) and dividing each denominator by the common denominator.
[2x(5x) - (x + 4)(x - 2)]/2x(x - 2)
= [10x² - (x² + 2x - 8)]/2x(x - 2)
= [10x² - x² - 2x + 8]/2x(x - 2)
= [9x² - 2x + 8]/2x(x - 2).