A1.644 g sample of n-2-acetamido-2-aminoethane-sulfoni c acid potassium salt (aces−k+, mw = 220.29 g/mol) is dissolved in 65.22 ml of water. to the solution, 17.43 ml of hcl is added, resulting in a ph of 7.14. calculate the concentration of the hcl solution. the pka of aces is 6.85.

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

hope this : )

b. is the answer hoped i        

catya that's not even a b or c