How can i calculate the percent concentration of solution?

m solute= 15g
m solution =100g

You should calculate in this way

m solute= 15g

m solution = 100g

C%= m solute/m solution  *100%

C% = 15/100 *100 = 15%

C%= 15%

You should calculate in this way

m solute= 15g

m solution = 100g

C%= m solute/m solution  *100%

C% = 15/100 *100 = 15%

C%= 15%

you must divide the mass of the solute by the mass of the solution and then multiply by 100

15/100=0.15

0.15 x 100 = 15%

you must divide the mass of the solute by the mass of the solution and then multiply by 100

15/100=0.15

0.15 x 100 = 15%

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.