Answer:
53∘
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Answer:
Explanation:
From this question, we are to fill in the blanks with the appropriate correct answers.
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NOTE: that the electron-withdrawing groups decrease the electron density around the proton nucleus and therefore the nucleus feels the external magnetic field more. Hence, it requires a larger frequency to attain resonance(downfield).
Answer: 429 grams of should be added to 1.3 L of water to prepare 2.0 M solution
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 Liters
Now put all the given values in the formula of molarity, we get
Therefore, 429 grams of should be added to 1.3 L of water to prepare 2.0 M solution
Divide the KCO3 molar mass (138.205g) by 85.62g. You will get 1.614 mol. It is 1.614 because 85.62 has 4 sig figs. Your answer must contain 4.
In one meter, there is 10000 milimeters. Just multiply however many meters you have by 10000, and youll have your answer.
~Silver