First figure out the formula of Scandium(III) Bromide: its ScBr3. Next ignore the 1.25 L solution part -- it's just extra information. Use the 10.00g to convert it to moles. To do so first figure out the molar mass of ScBr3: its 285g/mol. Now you do: 10.00g x 1 mol/285g = .0350877193... mol. Next round it to 3 significant figures: .0351. Now you find out the number of ions in the formula and use it as a conversion factor (instead of Avagrado's number, 6.02 x 1023): it has 4 ions (Scandium = 1; Bromide = 3). Finally you do: .0351 mol x 4 mol ions/1 mol = .1404 mol ions. This is your answer! By Geovonni Bell ;-)
1 % DCPIP solution can be prepared by dissolving 1g of the dye in 100cm3 of water
original salt solution is used for the identification of cations in salt . it is prepared by dissolving the salt in water
500mg/l
The concentration of this solution (in NaOH) is 40 g/L.
0.736 i think good luck
Solvent
1 % DCPIP solution can be prepared by dissolving 1g of the dye in 100cm3 of water
I think that this is involved with somehow particles dissolving and creating solutions
0.286
Litmus solution is a mixture of dyes dissolved in water.
The percent concentration is 13,75 %.
original salt solution is used for the identification of cations in salt . it is prepared by dissolving the salt in water
13,75 % NaCl
I think that this is involved with somehow particles dissolving and creating solutions
This value is 0,0164 M.
18%
32.4