0.05 moles of HCL are added to 2 L of H2O. What is the molarity of the solution? Impossible to answer the question with the information provided.

1.60

0.025M

10.4

Calculate the enthalpy of the following reaction: 4 b (s) + 3 o2 (g) → 2 b2o3 (s) given the following pertinent information: (a) b2o3 (s) + 3 h2o (g) → 3 o2 (g) + b2h6 (g), δhoa = +2035 kj (b) 2 b (s) + 3 h2 (g) → b2h6 (g), δhob = +36 kj (c) h2 (g) + latex: \frac{1}{2} 1 2 o2 (g) → h2o (l), δhoc = −285 kj (d) h2o (l) → h2o (g), δhod = +44 kj

Iwll give extra points to who gets this for ! what type of reaction is this? ?

Astudent reacts 13 moles of iron with 21 moles of oxygen according to the following equation: