Answer: 180g
Explanation:
No of moles= volume ×molarity/1000
Volume is given as 750ml
Molarity is given as 6M
Substitute to get the mole
No of moles = 750×6/1000
No of moles= 4.5moles
Remember that
No of moles also = mass given/molar mass
Molar mass of NaOH
Na= 23
O=16
H=1
Molar mass = na +o+h
Molar mass =23+16+1
Molar mass=40g/mol
Substitute
No of moles = mass given/molar mass
Mass = 4.5×40
Mass = 180g
The mass of NaOH needed is 180g
A fully balanced equation of strontium thiocyanate plus potassium yields an aqueous solution of iron (III) thiocyanate and potassium nitrate. ( I think it's : Fe(NO3)3 (aq) + KSCN (aq)
Answer: Iron thiocyanate and potassium nitrate
Look on google, cheg. com maybe
live
C. color.
It's a color chart.
