This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Here are the calculations for the number of moles: 1. For 2.8 g of N_2 Step 1: Determine the molar mass of N_2. The atomic mass of nitrogen (N) is approximately 14.01 g/mol. Since N_2 has two nitrogen atoms, its molar mass is: Molar mass of N_2 = 2 × 14.01 g/mol = 28.02 g/mol Step 2: Calculate the number of moles using the given mass and molar mass. Number of moles = MassMolar mass Number of moles = 2.8 g28.02 g/mol Number of moles ≈ 0.0999 mol Number of moles ≈ 0.10 mol 2. For 5.6 dm^3 of O_2 at STP Step 1: Recall the molar volume of a gas at Standard Temperature and Pressure (STP). At STP, one mole of any ideal gas occupies 22.4 dm^3. Step 2: Calculate the number of moles using the given volume and molar volume at STP. Number of moles = VolumeMolar volume at STP Number of moles = 5.6 dm^322.4 dm^3/mol Number of moles = 0.25 mol Number of moles = 0.25 mol Send me the next one 📸