1.Nectaryl is a compound with a peachy, apricot-like odor. It is composed of 10.98% hydrogen. How many grams of hydrogen are in a 475-g sample of nectaryl?
2.A solution is prepared by dissolving 95.4 grams of sodium nitrate in 753 grams of water. (a) What is the percent sodium nitrate in the solution? (b) If 350. grams of the solution are poured into a beaker, how many grams of sodium nitrate are introduced into the beaker? (c) How many grams of the solution are required to obtain 50.0 grams of sodium nitrate?
3.Driving to the grocery store, you notice the temperature is 45°C. Determine what this temperature is on the Fahrenheit scale and what season of the year it might be.
4.Make the following conversions and include an equation for each one: (a) 32°C to °F (b) â8.6°F to °C (c) 273°C to K (d) 100 K to °F
5.You borrowed a thermometer from the chemistry lab to use in the kitchen. If you want to heat a mixture of sugar and cream to 247°F, what temperature do you need in °C? What is this temperature in K?
6.At what temperature are Fahrenheit and Celsius temperatures the same in value but opposite in sign?
7.The average temperature at the top of Jupiterâs clouds is â244°F. What is this temperature in °C?
8.A 25.2-mL sample of kerosene was determined to have a mass of 20.41 g. What is the density of kerosene?
9.A total of 32.95 g of mossy zinc was placed into a graduated cylinder containing 50.0 mL of water. The water level rose to 54.6 mL. Determine the density of the zinc.
10.Glycerol has a density of 1.20 g/mL. How many mL are in 75 g of glycerol?
11.In a candy factory, the nutty chocolate bars contain 22.0% by mass of pecans. If 7.0 kg of pecans were used for candy last Thursday, how many pounds of nutty chocolate bars were made?
12.A jewelry maker sells lots of sterling silver hearts with a mass of 35.0 g. Sterling silver is composed of 92.5% silver and 7.50% copper. (a) Write out the dimensional analysis factors that can be de rived from the two percentages given above. Be sure to in clude units. (b) If the jeweler buys 50.0 lb of silver to make the hearts, how many sterling silver hearts can the jeweler make?
1.Nectaryl is a compound with a peachy, apricot-like odor. It is composed of 10.98% hydrogen. How many grams of hydrogen are in a 475-g sample of nectaryl?
2.A solution is prepared by dissolving 95.4 grams of sodium nitrate in 753 grams of water. (a) What is the percent sodium nitrate in the solution? (b) If 350. grams of the solution are poured into a beaker, how many grams of sodium nitrate are introduced into the beaker? (c) How many grams of the solution are required to obtain 50.0 grams of sodium nitrate?
3.Driving to the grocery store, you notice the temperature is 45°C. Determine what this temperature is on the Fahrenheit scale and what season of the year it might be.
4.Make the following conversions and include an equation for each one: (a) 32°C to °F (b) â8.6°F to °C (c) 273°C to K (d) 100 K to °F
5.You borrowed a thermometer from the chemistry lab to use in the kitchen. If you want to heat a mixture of sugar and cream to 247°F, what temperature do you need in °C? What is this temperature in K?
6.At what temperature are Fahrenheit and Celsius temperatures the same in value but opposite in sign?
7.The average temperature at the top of Jupiterâs clouds is â244°F. What is this temperature in °C?
8.A 25.2-mL sample of kerosene was determined to have a mass of 20.41 g. What is the density of kerosene?
9.A total of 32.95 g of mossy zinc was placed into a graduated cylinder containing 50.0 mL of water. The water level rose to 54.6 mL. Determine the density of the zinc.
10.Glycerol has a density of 1.20 g/mL. How many mL are in 75 g of glycerol?
11.In a candy factory, the nutty chocolate bars contain 22.0% by mass of pecans. If 7.0 kg of pecans were used for candy last Thursday, how many pounds of nutty chocolate bars were made?
12.A jewelry maker sells lots of sterling silver hearts with a mass of 35.0 g. Sterling silver is composed of 92.5% silver and 7.50% copper. (a) Write out the dimensional analysis factors that can be de rived from the two percentages given above. Be sure to in clude units. (b) If the jeweler buys 50.0 lb of silver to make the hearts, how many sterling silver hearts can the jeweler make?
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