What is the number of ammonia molecules made when 6 grams of hydrogen gas reacts with excess nitrogen? 3H_(2)+N_(2)longleftrightarrow 2NH_(3) 6times 10^23 24times 10^23 18times 10^23 12times 10^23 Question 7 What is the number of nitrogen molecules that reacted with excess hydrogen to make 2times 10^10 molecules of ammonia? 3H_(2)+N_(2)longleftrightarrow 2NH_(3) 2times 10^10 3times 10^10 1times 10^10 5times 10^9 1 pts

To solve these problems, we need to use chemical equation and the given information to determine the number of molecules of ammonia or nitrogen involved.Question 1:What is the number of ammonia molecules made when 6 grams of hydrogen gas reacts with excess nitrogen? Given information:- 6 grams of hydrogen gas (H2) is used.- Excess nitrogen (N2) is present.To find the number of ammonia (NH3) molecules produced, we need to follow these steps:1. Calculate the number of moles of hydrogen gas (H2) using the given mass and the molar mass of hydrogen gas.2. Use the balanced chemical equation to determine the stoichiometric relationship between hydrogen gas and ammonia.3. Calculate the number of ammonia molecules produced based on the stoichiometric relationship.Step 1: Calculate the number of moles of hydrogen gas (H2)Molar mass of hydrogen gas (H2) = 2.016 g/molNumber of moles of hydrogen gas (H2) = 6 g / 2.016 g/mol = 2.976 molStep 2: Use the balanced chemical equation to determine the stoichiometric relationshipThe balanced chemical equation is: This means that 3 moles of hydrogen gas (H2) react with 1 mole of nitrogen (N2) to produce 2 moles of ammonia (NH3).Step 3: Calculate the number of ammonia molecules producedNumber of moles of ammonia (NH3) = (2/3) × Number of moles of hydrogen gas (H2)Number of moles of ammonia (NH3) = (2/3) × 2.976 mol = 1.992 molNumber of ammonia molecules = 1.992 mol × 6.022 × 10^23 molecules/mol = 12.0 × 10^23 moleculesTherefore, the number of ammonia molecules produced is 12 × 10^23.Question 2:What is the number of nitrogen molecules that reacted with excess hydrogen to make molecules of ammonia? Given information:- molecules of ammonia (NH3) are produced.- Excess hydrogen (H2) is present.To find the number of nitrogen (N2) molecules that reacted, we need to follow these steps:1. Calculate the number of moles of ammonia (NH3) using the given number of molecules and Avogadro's number.2. Use the balanced chemical equation to determine the stoichiometric relationship between ammonia and nitrogen.3. Calculate the number of nitrogen molecules based on the stoichiometric relationship.Step 1: Calculate the number of moles of ammonia (NH3)Number of moles of ammonia (NH3) = molecules / 6.022 × 10^23 molecules/mol = 3.32 × 10^-14 molStep 2: Use the balanced chemical equation to determine the stoichiometric relationshipThe balanced chemical equation is: This means that 2 moles of ammonia (NH3) are produced from 1 mole of nitrogen (N2).Step 3: Calculate the number of nitrogen moleculesNumber of moles of nitrogen (N2) = (1/2) × Number of moles of ammonia (NH3)Number of moles of nitrogen (N2) = (1/2) × 3.32 × 10^-14 mol = 1.66 × 10^-14 molNumber of nitrogen molecules = 1.66 × 10^-14 mol × 6.022 × 10^23 molecules/mol = 1 × 10^10 moleculesTherefore, the number of nitrogen molecules that reacted with excess hydrogen to make molecules of ammonia is 1 × 10^10.