A15.00 ml sample of an unknown hclo4 solution requires titration with 25.64 ml of 0.2000 m naoh to reach equivalence point. what is the concentration (molarity) of the unknown hclo4 solution

Which of these best describes the scientific process

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

What is the mass of 0.46 mol of mgcl2