HELP PLZ, GIVING BRAINLIEST!!
Which is more concentrated, 25g NaCl dissolved in 500mL of water or a 10% solution of NaCl (percent by mass)? Show work, please.

Explanation:

25g in NaCl dissolved in 500 ml of water

M(NaCl) = 58,44 g/mol

n1(NaCl) = m(NaCl) / M(NaCl)

n1(NaCl) = 25 / 58,44

n1(NaCl) = 0,428 mol

C1 = n1(NaCl) / V

C1 = 0,428 / 0,500

C1 = 0.856 mol/L

10% solution of NaCl

10% solution of NaCl means 10 g of NaCl for 100g of water

therefore : 50 g of NaCl for 500 g of water (1,00L)

explanation:

two years ago, when picking flowers in the mountains back of yosemite valley, i found a book. it was blotted and storm-beaten; all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however; many of the inner pages were well preserved. and although all were more or less stained and torn, whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today; its granite pages have been torn and blurred by the same storms that wasted the castaway book.

two years ago, when picking flowers in the mountains back of yosemite valley; i found a book. it was blotted and storm-beaten, all of its outer pages were mealy and crumbly. the paper seemed to dissolve like the snow beneath which it had been buried, however, many of the inner pages were well preserved. and although all were more or less stained and torn; whole chapters were easily readable. this is the condition of the great open book of yosemite glaciers today, its granite pages have been torn and blurred by the same storms that wasted the castaway book.