sebichemarraot1mxe
sebichemarraot1mxe sebichemarraot1mxe
  • 14-03-2018
  • Chemistry
contestada

What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution?

1.0 L
2.3 L
5.7 L
6.3 L

Respuesta :

milvs81
milvs81 milvs81
  • 14-03-2018
2.3 L is the correct answer, plz lemme know if you want to know how to solve this

Good Luck!
Answer Link
andriansp andriansp
  • 16-03-2018
To prepare a solution from different concentration stock, you need to make the content/mass of solute equal. The content is calculated by multiplying the concentration with the volume used.
The calculation would be:

content1= content2
V1 * M1= V2 * M2
V1 * 2.5M= 3.8L * 1.5 M
V1= 5.7/2.5= 2.28L = 2.3L
Answer Link

Otras preguntas

find the amount of elapsed time between the pair 9:10 am to 4:44 pm
Prepare an art integrated assignment (Chart tabulation of music, costume, region, language association) of haryana
How much does it cost to rent a business place for landscaping in Phoenix,Arizona?
The function h is defined by h(x)=3x^(2 )+2. Find h(4x)
After world war ii left a terrible toll on the people and property of europe, which staple goods were in short supply?
Find ration of 350g to 7kg​
she spends some money on sweets. (some money). rewrite the following sentence​
what connection between sheriffs experiment and Sachs experiment is revealed in paragraph 8-10
f is inversely proportional to g. g is directly proportional to h². When f = 18, the value of g is 3. When f = 15, the value of h is 6. Use this information to
The periodic test in Mathematics has 50 questions. If Joy got 90% correct answers, how many questions did she miss?​