1. Calculate the number of grams of NH4NO2 that contains 8.306 x 102² nitrogen atoms.

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Chapter1: Chemical Foundations
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1.
Calculate the number of grams of NH,NO2 that contains 8.306 x 1022 nitrogen atoms.
How many grams of calcium acetate must have been dissolved in a solution that
contains 5.4 x 1014 total ions?
2.
3.
What is the molarity of a solution prepared by diluting 15.36 mL of 1.025 M potassium
chloride to 75.00 mL?
4.
Determine the empirical formula of a compound with 11.80 g nitrogen and 1.70 g
hydrogen. If the molecular weight of the compound is 32.05 g, what is the molecular
formula?
A cobalt (II) sulfate hydrate is 44.9% water, by mass. What is the theoretical formula of
this hydrate?
5.
Transcribed Image Text:1. Calculate the number of grams of NH,NO2 that contains 8.306 x 1022 nitrogen atoms. How many grams of calcium acetate must have been dissolved in a solution that contains 5.4 x 1014 total ions? 2. 3. What is the molarity of a solution prepared by diluting 15.36 mL of 1.025 M potassium chloride to 75.00 mL? 4. Determine the empirical formula of a compound with 11.80 g nitrogen and 1.70 g hydrogen. If the molecular weight of the compound is 32.05 g, what is the molecular formula? A cobalt (II) sulfate hydrate is 44.9% water, by mass. What is the theoretical formula of this hydrate? 5.
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