How many atoms of calcium are there in one serving of milk?

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Measurements that have similar values are: a. usually accurate b. sometimes accurate c. always accurate d. never accurate

At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.