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Middle School Math
Math

 

Name _____________________________
Date ___________________
Whole Numbers
Complete.

1.   Mr. Bloop added 26 grams of salt to 32 grams of sugar and then added an amount of sand equal to the total mass of the salt and sugar he already had. Nobody knows why he did this—he just did it. What was the total mass of the mixture when he was finished?

2.   Hannah carefully monitored the temperature in a reaction flask as it was slowly heated in a heating blanket. The temperature rose 21 degrees in 7 minutes. What was the rate of temperature rise in degrees per minute?

3.   At the beginning of a distillation experiment there were 316 ml of methanol in a boiling flask. At the end of the experiment, there were 82 ml. How many milliliters of methanol were removed from the flask?

4.   * This is a pre-made sheet.
Use the link at the top of the page for a printable page.
5.   Courtney set up an ice bath in the lab to cool a solution in a beaker. The solution began at room temperature (18C) and cooled to 5C after 9 minutes. What was the temperature change in the beaker?

6.   In a simulator used to train astronauts for work in space, Z-Globe was operating a hydrolysis machine to generate oxygen gas from water. Through hydrolysis (the splitting of water into hydrogen gas and oxygen gas by the use of an electric current) 8 grams of oxygen and 2 grams of hydrogen were liberated. What was the mass of the decomposed water?


 


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Middle School Math
Math