In an experiment to determine the enthalpy change for this reaction, you combine 0.158 g of Mg metal with enough HCl to make 100.0 mL of solution in a coffee-cup calorimeter. The HCl is sufficiently concentrated so that the Mg completely reacts. The temperature of the solution rises from 25.6 °C to 32.8 °C as a result of the reaction. Find ΔHrxn for the reaction as written. Use 1.00 g/mL as the dens

The value of Δ for the reaction =  463

Explanation:

Δ = - ------ (1)

We know that

(1)(100) × 4.18 × (32.8 - 25.6)

 3010 J = 3.01 Kilo Joule

From equation (1)

Δ  = 3.01 Kilo Joule

No. of moles

m = 0.158 gm & M = 24.31  gm Mg

No. of moles    

N = 0.0065

Therefore

Δ  =

Δ  =  463

This is the value of Δ for the reaction.

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.