Question

and units with correct final Tiot followed, you will not earn the corresponding or full points for ular question. 1. A sunscreen preparation contains 2.6% by mass benzyl salicylate. If a tube contains 6.0 oz of unscreen, how many kilograms of benzyl salicylate are needed to manufacture 400 tubes or sunscreen? Goz= 28.349sqm)1o097m 400X170.097am-6303%.%gm ount o yoo lubes x68038qmoo-1169.00 1.1 2. During a recent liposuction procedure, the surgeon removed 3.2 L of body fat from Dr. Awachie's body. If this body fat has a density of 0.95 g mL, how many pounds (lb) of body fat was removed? 3. If C'miah added 28.0 g of ice cubes at 0°C to her cola drink, how much heat energy (in calories) will be absorbed to melt all the ice at 0°C? What will happen to the temperature of C'miah's cola drink? 4. A 27.0-g sample of an alloy at 95.5°C is placed in 50.0 g water at 18°C. If the final temperature of the alloy and water is 28.4°C, what is the specific heat of the alloy?

Answer 1

^{S
2012 mass of Somple of alloy at 95.5 = 27.09. amount of watue of 188 = 50.0g final temperature of alloy and water = 28.4°C Shecific heat of alloy ? Now, Heat given by Olloy = Heat taken by worte m Colloy. Ait - Mg Cg Artz 27 x 6 x C 95.5°-28.4°) = 50% 1 * ( 29.4-18) 27X CX 6701 - 50 x 10.4. Callou = 50x 10.4 27x67.1 - 520 1811.7 Calloy = 0.287 callge Calloy hente Specific heat of alloy = 0.287 callgºc}