Because of the high heat and humidity in the summer in Death Valley, California, a hiker requires about one quart of water for every two miles traveled on foot. If the density of water is 0.999 g/mL at 45 ^o C, how many kilograms of water are required for a person to walk 30 kilometers in Death Valley? (1 L = 1.0567 qt; 1 km = 0.62317 miles) A) 8.8 kg B) 70 kg C) 350 kg D) 700 kg E) 8.8 × 10³ kg

Question

Quizplus · Accepted Answer

First, convert 30 kilometers to miles: 30 km * (0.62317 miles/km) = 18.6951 miles. Then, calculate the number of quarts needed for 18.6951 miles: 18.6951 miles / 2 miles/quart = 9.34755 quarts. Convert quarts to liters: 9.34755 quarts * (1 L / 1.0567 qt) = 8.844 liters. Finally, convert liters to kilograms (since the density of water is approximately 1 kg/L): 8.844 L * 0.999 g/mL = 8.835 kg, which rounds to approximately 8.8 kg.

Because of the High Heat and Humidity in the Summer