Methyl red has a pka of 5.0 and is red in its acid form and yellow in its basic form. if several drops of this indicator are placed in a 25.0-ml sample of 0.100 m hcl, what color will the solution appear? if 0.100 m naoh is slowly added to the hcl sample, in what ph range will the indicator change color?

What happens to energy in an open system?

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

Calculate the estimated density of each ball. use the formula d = m/v where d is the density, m is the mass, and v is the volume. record your calculations in table a of your student guide. given that the density of water is 1.0 g/cm3, make a prediction about whether each ball will float in water. record your prediction in table a. what is the estimated density of the table tennis ball? record your answer to the nearest hundredth