It is required to identify the reactants and products and write the balanced equation (including symbols for states) for each of the following chemical reactions . Concept Introduction: The notations s, l and g are used to represent solid, liquid and gaseous state of the reactants and the products in a chemical equation. The equation is written in such a way that the left hand side of the equation represents reactants and right hand side of the equation represents products and are separated by arrows. The two or more reactants and products are separated by “+”.

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Worked example 3 Determine the mass of oxygen (0,) consumed in the reaction from Worked example 2 on page 205. Step 1 Write a balanced equation 2H,(g) + 0,(g) → 2H,0(g) Step 2 Write down the 2 moles + 1 mole - 2 moles mole'ratio for the equation Step 3 Calculate molar M (O,) = [(2 x 16)] = 32 g.mol M„(H,) = [(1 x 2)] = 2 g.mol m(H,) is 8,00 g, so number of moles of H, is: masses Step 4 Calculate number of moles 8,00 g = 2 g.mol- = 4 moles Step 5 Write down the 2 moles H, reacts with 1 mole O,, therefore: moles in the moles H, reacts with 2 moles O, reaction Mass of O, consumed: m =n x M = 2,00 mol x 32 g.mol- = 64 g 64 g of oxygen is consumed. Step 6 Determine the mass of the product(s) Step 7 Conclusion Activity 1 Perform stoichiometric calculations In the following chemical reaction: 2H,(g) + O,(g) → 2H,O(g) 1.1 How many moles of H,0 will be produced from 6 moles of O,? 1.2 How many moles of H, will'react with 40 g of 0,? 1.3 How many grams of H,O will be produced by 18 g of H,? Zinc…

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Chapter 6.3, Problem 6.2SC

Interpretation Introduction

Interpretation:

It is required to identify the reactants and products and write the balanced equation (including symbols for states) for each of the following chemical reactions.

Concept Introduction:

The notations s, l and g are used to represent solid, liquid and gaseous state of the reactants and the products in a chemical equation. The equation is written in such a way that the left hand side of the equation represents reactants and right hand side of the equation represents products and are separated by arrows. The two or more reactants and products are separated by “+”.

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Worked example 3 Determine the mass of oxygen (0,) consumed in the reaction from Worked example 2 on page 205. Step 1 Write a balanced equation 2H,(g) + 0,(g) → 2H,0(g) Step 2 Write down the 2 moles + 1 mole - 2 moles mole'ratio for the equation Step 3 Calculate molar M (O,) = [(2 x 16)] = 32 g.mol M„(H,) = [(1 x 2)] = 2 g.mol m(H,) is 8,00 g, so number of moles of H, is: masses Step 4 Calculate number of moles 8,00 g = 2 g.mol- = 4 moles Step 5 Write down the 2 moles H, reacts with 1 mole O,, therefore: moles in the moles H, reacts with 2 moles O, reaction Mass of O, consumed: m =n x M = 2,00 mol x 32 g.mol- = 64 g 64 g of oxygen is consumed. Step 6 Determine the mass of the product(s) Step 7 Conclusion Activity 1 Perform stoichiometric calculations In the following chemical reaction: 2H,(g) + O,(g) → 2H,O(g) 1.1 How many moles of H,0 will be produced from 6 moles of O,? 1.2 How many moles of H, will'react with 40 g of 0,? 1.3 How many grams of H,O will be produced by 18 g of H,? Zinc…

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