The ache or "burn" you feel in your muscle during strenuous exercise is caused by the accumulation of lactic acid. the hydrogen atom of the cooh group is acidic, and it can be removed using base to form a cooh- group. to determine the concentration of a solution of lactic acid, a chemist titrates a 24.25ml sample of it with 0.1010 m naoh, and it finds that 14.83m: of titrate is required to reach teh equivalent point.

In a laboratory experiment, a fermenting aqueous solution of glucose and yeast produces carbon dioxide gas and ethanol. the solution was heated by burning natural gas in a bunsen burner to distill the ethanol that formed in the flask. during the distillation, the ethanol evaporated and then condensed in the receiving flask. the flame of the burner was kept too close to the bottom of the flask and some of the glucose decomposed into a black carbon deposit on the inside of the flask. during this experiment the following changes occurred. which of these changes involved a physical change and not a chemical change? check all that apply. 1-condensation of ethanol 2-evaporation of ethanol 3- formation of carbon dioxide gas from glucose burning of natural gas 4-formation of ethanol from glucose by yeast 5-formation of a carbon deposit inside the flask

Asample of neon occupies a volume of 375 ml at stp. what will be the volume of neon if the pressure is reduced to 90.0 kpa? a. 422 ml b. 422 l c. 333 ml d. 333 l

What is the temperature of one mole of helium gas at stp?