You want to know the concentration of 50.0 ml of a solution of H2SO4. The endpoint was reached when 40.0 ml of 0.20M Ba(OH)2 titrant was added. Find the concentration of the H2SO4.

What is the indicator of the number of ions in solution? the amount of conductivity the amount of precipitate the amount of solute added

If you try to move a piano and are unable to move it, did you perform any work in the scientific sense of the word? yes? or no? this question is worth 20 points! let it be correct!

4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?