Aluminum carbide is a solid that reacts with water to form aluminum hydroxide and methane gas. The reaction can be represented by the following chemical equation. Al4C3(s) + 12 H2O(l) → 4 Al(OH)3(s) + 3 CH4(g)
If 0.269 mol Al4C3 completely reacts with water in this manner, calculate the following.
(a) the number of moles of CH4 produced
mol
(b) the mass in grams of CH4 produced
g

Answer asap need by wednesday morning explain how a buffer works, using an ethanoic acid/sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

What element has similar physical and chemical properties as boron.

Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. one or more locations will remain empty. nitrosyl fluoride has the chemical formula nof nitrogen has five valence electrons, oxygen has six, and fluorine has seven. complete the lewis structure for this covalent compound. f n = = = . : : 0 : reset next um. all rights reserved us 2