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
Q(a) Step 1: Formula for amount of drug remaining. A = A_0 ( (1)/(2) )^t / t_1/2 Step 2: Substitute given values (A_0 = 12 mg, t = 5 h, t_1/2 = 10 h). A = 12 ( (1)/(2) )^5/10 Step 3: Simplify exponent. A = 12 ( (1)/(2) )^0.5 = 12 × 2^-0.5 Step 4: Calculate 2^0.5 = sqrt(2) ≈ 1.414. 2^-0.5 = (1)/(1.414) ≈ 0.707 Step 5: Multiply. A ≈ 12 × 0.707 = 8.5 mg Final answer: 8.5 mg Q(b) Step 1: Formula for mass of insulin. m = (U)/(c) where U is units, c = 28.8 units/mg. Step 2: Substitute U = 35 units. m = (35)/(28.8) Step 3: Divide. 28.8 × 1.2 = 34.56 35 - 34.56 = 0.44 0.44 / 28.8 ≈ 0.015 m ≈ 1.2 + 0.015 = 1.22 mg Final answer: 1.22 mg Q(c) Step 1: Number of doses per day. 24 h6 h/dose = 4 doses/day Step 2: Tablets per dose (500 mg dose, 500 mg/tablet). 1 tablet/dose Step 3: Total tablets per day. 4 doses/day × 1 tablet/dose = 4 tablets/day Final answer: 4 tablets/day