Under what conditions would you adjust the diaphragm

What would be the composition and ph of an ideal buffer prepared from lactic acid (ch3chohco2h), where the hydrogen atom highlighted in boldface is the acidic hydrogen atom? the ka value for lactic acid is 1.38? 10?4./?

Alice and Marge are studying the properties of matter. The girls cut some silver-colored magnesium sheets into 3-inch long strips and then put one strip each into test tubes: one containing water and one containing acid.

How many moles are in 1.2*10^3g of ammonia

What radioactive element has the lowest atomic number

you are saving for a new $1226 (including taxes) laptop computer using earnings from your part-time job. at that job you work 20 hours per week earning $10.25/hour take home pay.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda