12Kof 12Kof
  • 01-10-2021
  • Chemistry
contestada

20 ml of D.W added to 60 ml of 2% w/v of phenobarbital solution , find the final concentration ​

Respuesta :

vjaguirre123
vjaguirre123 vjaguirre123
  • 01-10-2021

Answer: 1.5% w/v

Solution: (60mL)(2%) = (80mL)(x)

X = 1.5%

Answer Link

Otras preguntas

what is the answer and explanation to Sarai uses 4 cm3 of face wash each night. The cylindrical container of face wash is 10 cm tall and has a diameter of 5 cm.
Help? I'm not exactly sure how to do this :/ Complete the chart. (The chart is the attachment)
The three major types of faults are normal, reverse and syncline.
y = 5sin (2x) + 4 What's the amplitude, period, phase shift, and vertical shift?
629999 rounded to the nearest hundred thousand is
nora has a piece of ribbon that is 3/4 yard long.she will use half of it to make a bow what length of the ribbon will she use for the BOw?
write the percent as a fraction in simplest form 62 1/2
Which rational number is least? 0.66, -4/5, -6/7 or -0.6
EXPLAIN what is happening below the Earth’s surface that is causing the lithosphere to shape our crust in this way. Thanks for helping
how do you solve 5/6 ×20