can someone explain how this is wrong? I don’t think it is wrong but my chem teacher deducted points. so why?
1 answer:
Answer: measure the mass (48.425g) of KCl
Explanation:
To prepare the solution 0.65M KCl we must measure the mass of KCl that would be dissolved in 1L of the solution. This can be achieved by:
Molar Mass of KCl = 39 + 35.5 = 74.5g/mol
Number of mole (n) = 0.65
Mass conc of KCl = n x molar Mass
Mass conc of KCl = 0.65 x 74.5 = 48.425g
Therefore, to make 0.65M KCl, we must measure 48.425g
You might be interested in
Answer:
1.38×10^25 molecules
Explanation:
Applying n= (no. of molcules)/NA
23 = N/6.02×10^23
= 1.38×10^25 molecules
chlorine's atomic number and mass :
35,453 u
☝️follow the rules of brainly!
1: it is +2
2: it is +6
(Make this brainliest answer please)
Answer:
Ee your house 6r2f5r56rrrr6gjyf
Explanation:
Answer:
An engine that creates ignites fuel with highly compressed air.
