Answer:
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We need to first add both of the solution volumes together 35+115=150. Now we can divide the volume of the ethanol by the total volume 35/150=.233. To double check we can multiply the total volume by the percentage of ethanol by volume we got as a solution 150x.233=35. So the percentage by volume of ethanol in the solution is .233x100=23.3%.
<h3><u>Answer</u>;</h3>
19 mg
<h3><u>Explanation</u>;</h3>
dose = 5.0 mg/kg
weight of infant = 8.5 pounds
Convert 8.5 pounds to kg: 8.5 pounds = 3.86 kg
Therefore;
The dose to give the infant is:
= (5.0 mg/kg) x (3.86 kg)
= 19.3 mg
<u>≈ 19 mg</u>
Answer:
Compound
Explanation:
Soda itself is a mixture made out of compounds.
Answer:
a) Qc = 0.6338
b) Qc < Kc ⇒ the reaction proceeds to the right, towards the products.
Explanation:
∴ Kc = 9.8 E5 = [H2S] / [H2]
a) reaction quotient, Q:
∴ Qc = [H2S] / [H2] = (0.483 M)/(0.762 M) = 0.6338
b) the process is not established equilibrium: Qc < Kc
⇒ The reaction evolves to the right, towards the products