burhanmuhammad804
burhanmuhammad804 burhanmuhammad804
  • 01-03-2020
  • Chemistry
contestada

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.

Respuesta :

PHG
PHG PHG
  • 01-03-2020

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)

Answer Link

Otras preguntas

Find the product of (3 + 7i)(1 − i), and write the answer in standard form.
Which Latin American country did a young colonel named Juan Perón successfully mobilize before gaining complete power in 1946?
schools that offer programs the prepare students to directly enter the workforce are known as:
Why are Dichotomous keys so hard to do.
Harry and Selma start driving from the same location. Harry drives 42 miles north while Selma drives 144 miles east. How far apart are Harry and Selma when they
What is the product of 7x-4 and 8x+5
Clues to animal relationships can be found in the fossil record t/f
Narration and description should be kept separate from one another. a. True b. False?
Why was the 14th amendment needed?
Several events happen during sexual reproduction in flowering plants. Put these processes in the correct order, ending with the process seen here.