You have prepared a .2 M histidine solution. Calculate the molar concentration of isoelectric histidine at a) pH 5.5 and b) pH 7.0. A solution is provided, but can you do a step-by-step as I do not quite understand the math that went into this.

In this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced?

After watching the video "zinc strip in copper nitrate solution", and reading the instructions, click on the link labeled "start" just below the drawing of the pencil tip. follow the direction to complete the 3x3 grid. answer the below questions for the portion of the activity in which sn(s) is placed in agno3(aq)

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree