In a glucose standard curve, a solution with zero glucose measures zero absorbance on a spectrophotometer, and a solution with 100 mmol/liter glucose measures 0.9 absorbance units. The standard curve is linear up to 200 mmol/liter glucose. An unknown solution measures 1.8 absorbance units. What is the concentration of glucose in the unknown

Part of molten rock at mid-ocean ridges

Light waves travel than sound waves.

The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of