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xG Chapter 5 Flashcards xIG com/courses/27386/quizzes/10590/take LBCC's Student Learn Google MapsChris Brown-MYFRE B An error has occurrecVince 8 Q AP Biology Midterm x New Tab Question 10 5 pts Salinity Part C Consider the following scenario: you take a sample of pure, filtered seawater at 35 ppt salinity and measure its weigh. It weighs 2 kg (2000 grams). You put your sample over a boiler and evaporate the water completely How many grams of total salt residue would you have gotten? (round your answer up so that there are no decimals) Question 11 5 pts

Explanation / Answer

salinity ppt = the number of grams of dissolved ions contained in 1000 g (or 1 kg) of seawater

35 = number of grams (g) of salt / 2kg
number of grams (g) of salt = 70g of salt

2. Sodium present in 30% and chlorine is 55%
So, 30/100 (70) = 21g of Na+ ions

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