Question

1 ) your favorite recipe for preparing 100 brownies requires the following : 6 eggs , 5 cups flour and 2 sticks of butter . how many eggs would be required to yield 50 brownies ?
1 or 2 or 3 I think it might be 3 .
2) A chemical reaction produces oxygen gas. You collect 6.02 x 1023 oxygen gas molcules at STP. what volume of oxygen gas did you collect
22.4 L or 5.6 L or 11.2 L
3) what volume will 0.75 moles of oxygen gas occupy at STP ?
33.6 L or 16.8 L or 20.0 L I think it might be 16.8 L

Answer 1

<em />If 100 brownies require 6 eggs, 5 cups of flour, and 2 sticks of butter. Then, 50 brownies should require half of those required to make 100 brownies. Use ratio and proportion to determine the number of eggs needed:

100/50 = 6/x
x = 3<span />