The volume of sulfuric acid, H2SO4 0.15 mol dm-3 required to neutralize 25.0 cm3 of potassium hydroxide solution, KOH in full is 30.5 cm3. Count
molarity of potassium hydroxide solution, KOH.

Imagine that twenty i. u.’s of enzyme z were catalyzing the above reaction for one minute, under vmaxconditions, in a 3.00 ml assay volume. the assay is buffered with 20 mm phosphate buffer, ph 7.60. what will the ph be at the end of that one minute?

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

Why do oxygen have a strong attractive force for electrons