Determine the molar mass of the following compounds: a) ammonia, NH, b) sodium hydrogen carbonate (baking soda). NaHCO, c) ethylene glycol (antifreeze). C,H60,

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Chapter9: Chemical Quantities
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Problem 86AP: When small quantities of elemental hydrogen gas are needed for laboratory work, the hydrogen is...
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Date:
Prelaboratory Assignment: Determination of a Chemical Formula
1. Determine the molar mass of the following compounds:
a) ammonia, NH,
b) sodium hydrogen carbonate (baking soda). NaHCO,
c) ethylene glycol (antifreeze), C,H60,
Section:
2. A compound has the following chemical formula: CuAl,(PO),(OH), 4 H₂O. Calculate the
mass percentage of each element in turquoise
3. Thyroxine is a hormone secreted by the thyroid gland and has a formula of C, H, NO,I
How many grams of iodine are there in a 5 g sample of thyroxin?
4. Citric acid was found to contain 37.51% C. 4.20% H. and 58.29% O by mass. What is the
simplest formula for citric acid?
Transcribed Image Text:Name: Date: Prelaboratory Assignment: Determination of a Chemical Formula 1. Determine the molar mass of the following compounds: a) ammonia, NH, b) sodium hydrogen carbonate (baking soda). NaHCO, c) ethylene glycol (antifreeze), C,H60, Section: 2. A compound has the following chemical formula: CuAl,(PO),(OH), 4 H₂O. Calculate the mass percentage of each element in turquoise 3. Thyroxine is a hormone secreted by the thyroid gland and has a formula of C, H, NO,I How many grams of iodine are there in a 5 g sample of thyroxin? 4. Citric acid was found to contain 37.51% C. 4.20% H. and 58.29% O by mass. What is the simplest formula for citric acid?
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