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Calculate percent composition of each element in the compound Ca(NO3)2. Note parenthesis means the subscript 2 after NO3 has to multiplied with 1 N and 3 O. 1 point26.67% Ca, 9.33% N, 64% O24.42% Ca, 17.07% N, 58.51% O24.38% Ca, 16.12% N, 59.50% ONone of the above

Question

Calculate percent composition of each element in the compound Ca(NO3)2. Note parenthesis means the subscript 2 after NO3 has to multiplied with 1 N and 3 O. 1 point26.67% Ca, 9.33% N, 64% O24.42% Ca, 17.07% N, 58.51% O24.38% Ca, 16.12% N, 59.50% ONone of the above

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Solution

To calculate the percent composition of each element in the compound Ca(NO3)2, we first need to calculate the molar mass of the compound.

  1. Calculate the molar mass of Ca(NO3)2:

    • Molar mass of Ca = 40.08 g/mol
    • Molar mass of N = 14.01 g/mol
    • Molar mass of O = 16.00 g/mol

    The molar mass of Ca(NO3)2 = 40.08 g/mol (for Ca) + 2 * [14.01 g/mol (for N) + 3 * 16.00 g/mol (for O)] = 164.10 g/mol

  2. Calculate the percent composition of each element:

    • Percent composition of Ca = (40.08 g/mol / 164.10 g/mol) * 100% = 24.42%
    • Percent composition of N = (2 * 14.01 g/mol / 164.10 g/mol) * 100% = 17.07%
    • Percent composition of O = (6 * 16.00 g/mol / 164.10 g/mol) * 100% = 58.51%

So, the percent composition of each element in the compound Ca(NO3)2 is 24.42% Ca, 17.07% N, and 58.51% O.

This problem has been solved

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