. According to the Gatorade website, “Water is not enough”. Apparently, you also
ID: 804286 • Letter: #
Question
. According to the Gatorade website, “Water is not enough”. Apparently, you also need the 0.11 g of sodium and 0.03 g of potassium in every 240 g (8 oz) serving of Gatorade. This sodium and potassium together make up what fraction of the total weight of a serving of Gatorade, in parts per thousand (that is, what is the salinity of Gatorade)? ____________ ‰
Your blood also contains salts, mostly Na+ and Cl-. Generally speaking, mammals such as ourselves have about 9 g of salt per 1 kg (about 1 liter) of blood. So, what is the salinity of mammal blood in parts per thousand? ________________ ‰
Which substance takes more heat energy to raise its temperature 1°C: 25 g (~1 oz) of freshwater, or 25 g of pure copper with a heat capacity of 0.092 cal/g°C?)
Explanation / Answer
fraction of the total weight of a serving of Gatorade, in parts per thousand (that is, what is the salinity of Gatorade)? 0.58 ‰
The salinity of mammal blood in parts per thousand? 9 o/00
Fresh water has higher heat capacity than copper. thus it takes more heat to raise it temperature by 1 degree.
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