The action of some commercial drain cleaners is based on the following reaction: 2 naoh(s) + 2 al(s) + 6 h2o(l) → 2 naal(oh)4(s) + 3 h2(g) what is the volume of h2 gas formed at stp when 6.32 g of al reacts with excess naoh?

Answer : The volume of gas formed at STP is 7.86 liters.

Explanation :

The balanced chemical reaction will be:

First we have to calculate the moles of .

Molar mass of Al = 27 g/mole

Now we have to calculate the moles of gas.

From the reaction we conclude that,

As, 2 mole of react to give 3 mole of

So, 0.234 moles of react to give moles of

Now we have to calculate the volume of gas formed at STP.

As, 1 mole of gas contains 22.4 L volume of  gas

So, 0.351 mole of gas contains volume of gas

Therefore, the volume of gas formed at STP is 7.86 liters.

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation:

"hydrogen bonding is the attraction of h atoms in the water molecule (slight + charge) to o atoms in a neighboring water molecule (slight - charge); it is a weak interatomic force. but it is still strong enough to the water molecules "stick" together."