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Chapter 3 Worksheet 2 - many molecules of sugar may be...

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Chapter 3 Worksheet #2 Molecular Mass and the Mole 1. How many C atoms are in 12 grams of carbon-12? 2. What is the atomic mass of C? 3. 1 mole of oxygen molecules = ____________________ O 2 molecules 4. We’re familiar with water bottles. Each holds 500 mL of water. Given that the density of water is 1 g/mL, solve the following: a. How many grams of water are in a completely-full water bottle? b. How many moles of water are in a completely full water bottle? c. How many water molecules are in a completely full water bottle? 5. How many CO 2 molecules are present in 4.5 moles of carbon dioxide? 6. A formula for sugar is C 6 H 12 O 6 . a. What is the molecular mass of sugar? b. The sugar content of a 12 oz can of Dr. Pepper states that it contains 40g of sugar. If we assume that the sugar follows the formula above, how
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Unformatted text preview: many molecules of sugar may be found in this Dr. Pepper drink? 7. How much does one billion atoms of gold weigh? Would it be reasonable to expect someone to weigh that much gold on a bathroom scale (reads to the nearest tenth-pound). A side, for those interested…how much is a billion atoms of gold worth, given the current trading values? Your textbook covers many greenhouse gases and their anthropogenic sources. They are: (list and discuss at least 5) Computer modeling can help scientists to explain past events and determine the potential effects of global warming. In order for the model to match reality, a variety of factors need to be included. Your book describes several factors that, if included, the model better fits the data. List those factors....
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