An atom of potassium has 19 protons and 19 electrons. If the atom loses 1 electron, what will

Chemistry

1 answer:

Pani-rosa [81]3 years ago

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If it loses 1 electron, it will now have 1 more proton than electrons.

Thus, the charge would be 1+

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1. Calculate how many moles of glycine are in a 130.0-g sample of glycine.2. Calculate the percent nitrogen by mass in glycine.

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Answer:

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Explanation:

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In this case, since the molecular formula of glycine is C₂H₅NO₂, we realize that the molar mass is 75.07 g/mol; thus, the moles in 130.0 g of glycine are:

$n=130.0g*\frac{1mol}{75.07 g}\\\\ n=1.732mol$

Furthermore, we can notice 75.07 grams of glycine contains 14.01 grams of nitrogen; thus, the percent nitrogen turns out:

$\% N=\frac{14.01}{75.07}*100\% \\\\\% N=18.7\%$

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