The reaction for the decomposition of ammonia can be written as shown below. If a student starts with 21.7 g of ammonia how many grams of hydrogen gas will be produced by the reactions?Why

2NH3 = N2 + 3H2

A. 1.28g
B. 2.55g
C. 3.85g
D. 32.5g

Option C. 3.85g

Explanation:

2NH3 <=> N2 + 3H2

Molar Mass of NH3 = 14.0067+ (3x1.0078) = 14.0067 + 3.02352 = 17.03022g/mol

Mass of NH3 from the balanced equation = 2 x 17.03022 = 34.06044g

Molar Mass of H2 = 2x1.00784 = 2.01568g/mol

Mass of H2 from the balanced equation = 3 x 2.01568 = 6.04704g

From the equation,

34.06044g of NH3 produced 6.04704g of H2

Therefore, 21.7 of NH3 will produce = (21.7 x 6.04704)/34.06044 = 3.85g of H2

answer: e.   sour taste

explanation: acids are those substances which dissociates in water to give ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. acids are sour in taste. example: hcl

bases are those substances which dissociates in water to give ions or accepts ions. as they dissociate to give ions, they act as electrolytes and thus are electrically conductive. bases are bitter in taste. bases are slippery in nature.