c) For erythrosine, a food coloring, C20H6L4N22O5, how many hydrogen atoms would be present in the 86.0 g of the compound? H atoms

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### Chemistry Problem Set

**c) Calculation for Erythrosine**

For erythrosine, a food coloring with the chemical formula \( \text{C}_{20}\text{H}_{6}\text{I}_{4}\text{Na}_{2}\text{O}_{5} \), determine the number of hydrogen atoms present in 86.0 grams of the compound.

____ H atoms

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**d) Molar Mass and Mass Percent Calculation for CoCl\(_2\)·6H\(_2\)O**

1. Calculate the molar mass of \(\text{CoCl}_2 \cdot 6\text{H}_2\text{O}\): ______ g/mole. *(Note: Include 6 waters of hydration in the formula.)*

2. What is the mass percent composition of cobalt in this hydrate? Ensure your answer includes three significant figures.

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**e) Mass Percent Composition in TNT**

Calculate the mass percent composition of each element in the explosive compound TNT, with the formula \(\text{C}_6\text{H}_2(\text{NO}_2)_3\text{CH}_3\). Use three significant figures in your answers.
Transcribed Image Text:### Chemistry Problem Set **c) Calculation for Erythrosine** For erythrosine, a food coloring with the chemical formula \( \text{C}_{20}\text{H}_{6}\text{I}_{4}\text{Na}_{2}\text{O}_{5} \), determine the number of hydrogen atoms present in 86.0 grams of the compound. ____ H atoms --- **d) Molar Mass and Mass Percent Calculation for CoCl\(_2\)·6H\(_2\)O** 1. Calculate the molar mass of \(\text{CoCl}_2 \cdot 6\text{H}_2\text{O}\): ______ g/mole. *(Note: Include 6 waters of hydration in the formula.)* 2. What is the mass percent composition of cobalt in this hydrate? Ensure your answer includes three significant figures. --- **e) Mass Percent Composition in TNT** Calculate the mass percent composition of each element in the explosive compound TNT, with the formula \(\text{C}_6\text{H}_2(\text{NO}_2)_3\text{CH}_3\). Use three significant figures in your answers.
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