If you have 25mL of 1.5M KCL, how many moles of KCL do we have?

can you please show me step by step on how to get this answer?

Answer:
M = molar = moles per liter

so 1.5 molar means 1.5 moles in one liter.
you have 25ml so that means you have .025 liters.

1.5 moles/ 1 liter = x moles / .025 liters
cross multiply and then solve for x
x = .0375 moles
0.025 L x 1.5 M = 0.0375 moles of KCl
L x Molarity = moles
25 mL = 0.025 L

M = moles solute / L solution

moles solute = Molarity x L solution
moles solute = 1.5 moles/L x 0.025 L= 0.0375
1.5 M KCL means you have 1.5 moles per liter of KCl. if you have 25 mL thats 0.025 L. Just multiply

1.5 moles/ per 1 L = x moles/ per 0.025 L

Multiply 1.5 * 0.025 and you have the answer!

The answers post by the user, for information only, FunQA.com does not guarantee the right.



More Questions and Answers:
  • What Chemical is this?
  • Functional Group Tests -- Procedures?
  • Chemistry question?
  • Products & Equation Balancing?
  • Can anybody tell me what are the differences between physical adsorption and chemical adsorption?
  • Electrochem, please help!?
  • If an acid has an H+ concentration of 1.0 times 10-4, whats the pOH?
  • When you supercool water does it matter how long you put it in like can you leave it there for a night?
  • For those who teach chemistry?