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Serggg [28]
3 years ago
8

Part 1 - Circle the elements in the list below.

Chemistry
1 answer:
irina [24]3 years ago
4 0

Answer:

The elements in this list are:

Silver, hydrogen, carbon, nitrogen, gold, magnesium, nickel, mercury.

Explanation:

Elements are chemical substances that can be found on the periodic table.

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Answer:

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Now all the choices for the metal cation are monovalent, therefore the general formula for our unknown is XOH and  we know the reaction is 1 equivalent acid to 1 equivalent base. Thus we have the number of moles, n,  of XOH and from the relation n = M/MW we can calculate the molecular weight of XOH.

Thus our calculations are:

V = 17.0 mL x 1 L / 1000 mL = 0.017 L

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so solving the above equation we get:

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0.7225 +0.0425X = 4.36

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The unknown alkali is Rb which has an atomic weight of 85.47 g/mol

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