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 based on the provided information: a) Calculate the gradient of the graph. Step 1: Identify the coordinates of the two points used for the gradient calculation. From the student's work, the points are: Point 1: (x_1, y_1) = (0.00327, 0.091) Point 2: (x_2, y_2) = (0.00291, 0.098) Step 2: Calculate the gradient using the formula m = (y_2 - y_1)/(x_2 - x_1). m = (0.098 - 0.091)/(0.00291 - 0.00327) m = (0.007)/(-0.00036) m = -19.4444... Rounding to three significant figures, the gradient is -19.4. b) Calculate the enthalpy of solution using the expression H = -gradient × 2.3R, where R = 8.31 \, J mol^-1 K^-1. Step 1: Substitute the calculated gradient and the value of R into the given expression. Using the more precise gradient value: H = -(-19.4444...) × 2.3 × 8.31 \, J mol^-1 K^-1 H = 19.4444... × 2.3 × 8.31 \, J mol^-1 H = 19.4444... × 19.113 \, J mol^-1 H = 372.093... \, J mol^-1 Step 2: Round the final answer to an appropriate number of significant figures. Rounding to three significant figures: H = 372 \, J mol^-1 The enthalpy of solution is 372 \, J mol^-1. Send me the next one 📸