Please help. D) 250 ml KOH solution 30% mass
grams of KOH = 101.25
grams of water = 236.25

Obtain:
-mass solution = ?
-mass solute = ?
-solvent mass = ?

msolution= solute mass + solvent mass

Mass= (mass of solution)*100

What will most likely happen when two bromine atoms bond together?

The reactions shown here can be combined to make the overall reaction c(s) + h2o(g) ⇌ co(g) + h2(g) by reversing some and/or dividing all the coefficients by a number. a. c(s) + o2(g) → co2(g) k=1.363×10^69 b. 2 h2(g) + o2(g) → 2 h2o(g) k=1.389×10^80 c. 2co(g) + o2 (g) → 2 co2(g) k=1.477×10^90

How many protons, electrons, and neutrons are in each of the following isotopes? a. zirconium-90 b. palladium-108 c. bromine-81 d. antimony-123