You have molarity and you have volume. Use the formula :
Molarity(M)= Moles(N)/Liter(L) to get the solution.
450 ml= .450 L
.250 = N/.450
N=.1125 moles of NaOH.
And since you know the moles, use the molar mass to figure out the grams.
<span> (40g/mol NaOH) x (.1125 mol) =
4.5g of NaOH.
</span>
Hope it helps. Good luck on chemistry.
Answer:
《HOPE IT WILL HELP YOU 》
Explanation:
2 Atom of Hydrogen are present in 2 (NaHCO3)
<span>CH4 + 2O2 --> CO2 + 2H2O </span>
The answer is electrolytes. Strong electrolytes like strong acids, strong bases and salts dissociate completely into ions when dissolved and no neutral molecules are present in their solution. Weak electrolytes like weak acids and weak bases do not completely ionize in water and some neutral molecules are present in their solution, while nonelectrolytes do not dissociate into ions when in solution at all.
Answer:
Solution given:
heat[Q]=?
temperature [T]=0.64°C
specific heat capacity [c]=0.880 J/g °C
mass[m]=3g
we have
Q=mcT=3*0.880*0.64°=1.69Joule
<u>the</u><u> </u><u>required</u><u> heat </u><u>is</u><u> </u><u>1.69</u><u>Joule</u><u>.</u>
