An old antacid commercial claimed that each tablet of their product could neutralize 47 times its mass in stomach acid. The active ingredient in the antacid tablet, NaAl ( OH ) 2 CO 3 , NaAl(OH)2CO3, reacts with the HCl HCl in stomach acid according to the balanced reaction here. NaAl ( OH ) 2 CO 3 + 4 HCl ⟶ NaCl + AlCl 3 + 3 H 2 O + CO 2 NaAl(OH)2CO3+4HCl⟶NaCl+AlCl3+3H2O+C O2 How many moles of HCl HCl can a 1.24 1.24 g antacid tablet neutralize if the tablet contains 0.296 0.296 g of the active ingredient?

Answer : The number of moles of HCl neutralize is, 0.00824 moles.

Explanation :

The given balanced chemical reaction is:

First we have to calculate the moles of

Molar mass of = 144 g/mol

Now we have to calculate the moles of HCl.

From the balanced chemical reaction we conclude that,

As, 1 mole of react with 4 moles of HCl

So, 0.00206 mole of react with moles of HCl

Thus, the number of moles of HCl neutralize is, 0.00824 moles.

"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."

sorry i was late, but i don't know what assignment your talking about, i'm in flvs as well, im in earth space science. but u are behind pace bc every class should be in the 3's or 4'