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CHM 130 Conversion Practice Problems

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Worksheet CHM 130 Conversion Practice Problems For conversions within the metric system, you must memorize the Conversion (for example: 1000 mL. = 1 L, or 1000 g = 1 kg should be memorized) Remember that metric conversions are exact ratios and thus will not limit your significant digits for the answer. First start with what you are given. Figure out what units you need. You will need to create a ratio ( Conversion factor) between the units given and the units needed. Ask yourself which unit is bigger. Put a "1" by that unit. Then ask how many of the smaller units are in the bigger unit.

23. Table salt has a density of 2.16 g/mL. If you used 2.00 mL on your food, how much in mg is that? 24. The density of ethanol is 0.802 g/mL. How much in grams does 9.85 x 10-2L mass? 25. How many cg are in 0.497 g? 26. How many cg are in 2.49 x …

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