Question 7 In the reaction of an acid with a base, the common ionic reaction inv

Question

Question 7 In the reaction of an acid with a base, the common ionic reaction involves ions of hydrogen and hydroxide sodium and chloride hydrogen and hydronium O hydroxide and nitrate Question 8 The energy of a system can be o easily changed to mass transformed into a different fom O measured only as potential energy measured only askinetic energy 5 poi Question 9 Consider the chemical equation Zn 2HC1 ZnCl: H., If you are given 65 g of zinc and 65 g of HCL how many grams of hydrog produced? 19 g 19 g 190 g 0.19 g

Explanation / Answer

Soln. 7) In the reaction of an acid with a bse, the common ionic reaction involves ions of,

hydrogen and hydroxide

Soln. 8) The energy of a system can be,

transformed into a different form

Soln. 9) For the reaction, Zn + 2HCl ---> ZnCl2 + H2

moles of Zn = 65 g/65.38 g/mol = 0.994 mol

moles of HCl = 65 g/36.46 g/mol = 1.83 mol

Limitig reactant

If all of Zn has reacted, we would need = 2 x 0.994 = 1.99 mol of HCl

Since moles of HCl available is less than required, this is the limiting reagent

grams of H2 produced = 1.83 mol x 2.01 g/mol/2 = 1.9 g

Answer : 1.9 g

Related Questions

Navigate

• Browse (All)
• Browse Q
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.