vayphuong081 vayphuong081
  • 10-10-2021
  • Chemistry
contestada

Để pha 2 lít dung dịch H2SO4 0,1N từ axit đặc 98% (d 1.84g/ml). Cần lấy bao nhiêu ml acid đặc

Respuesta :

truonghuynhsakura truonghuynhsakura
  • 10-10-2021

Answer:

Cm = Cn/n = 0.1/2 = 0.05 (M)

n = 0.05*2= 0.1 mol

m H2SO4= 0.1*98= 9.8 g

m dd H2SO4= 9.8/ 0.98 =10 g

V= 10/ 1.84 = 5.435 ml

Explanation:

Answer Link

Otras preguntas

Find the missing number and thank for answer
Is this statement true or false? It is covered by layers of sediment. The sediment hardens into sandstone. Water carries minerals through the layers of rock, wh
PLEASE ANSWER CORRECTLY, I WILL GIVE BRANILIEST! <3 THANK YOU IN ADVANCE!
Based on the details and information in "Making Money," what is the most likely reason that paper money is printed with ink that "changes color as you look at i
Carla discover that she could create the perfect shaped heart by combining two semi circles and a square what is the area of the heart Carla created
Vreau rezumat la acest fragment:
[tex]\frac{t}{4}[/tex] > 4 solve the inequality with working for brainlest
Help me with this please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
1. Christine picks three pumpkins. They weigh 6 14 pounds, 2 1/3 pounds, and 1 1/8 pounds. What is the total weight of the pumpkins?
A 0.8 kg bead slides on a curved wire, starting from rest at point A as shown in the figure. The segment from A to B is frictionless, and the segment from B to