Answer:
2.2×10^8
Explanation:
Cu(OH)2(s)<---------> Cu^2+(aq) + 2OH^-(aq) Ksp=2.2 x 10 ^-20
2H3O^+(aq) + 2OH^-(aq) <-------> 4H2O(l). Kw= 1×10^14
Cu^2+(aq) + 4H2O(l) <--------> [Cu(H2O)4]^2+(aq)
Overall ionic reaction:
Cu(OH)2(s) +2H3O^+(aq) <---------> [Cu(H20)4]^2+(aq)
Equilibrium constant for the reaction: Ksp×Kw= 2.2 x 10 ^-20 × (1/(1×10^-14))^2
Keq= 2.2×10^8
Kw= ion dissociation constant of water
13 is the number for it on the periodic table and Group 3 is the correct answer hope this helps.
90 oz because 5lbs is equal to 80 oz (5*16=80) plus 10oz = 90
Your answer would be carbon dating
Hope this helps
Answer:
0.67 atm
Explanation:
From the question,
Applying Boyles law
PV = P'V'......................... Equation 1
Where P = Initial Pressure of the sample of gas, P' = Final pressure of the sample of gas, V = Initial volume of the sample of gas, V' = Final volume of the sample of gas.
make P' the subject of the equation above
P' = PV/V'.................... Equation 2
Given: P = 10.0 L, V = 1.0 atm, V' = 15.0 L
Substitute these values into equation 2
P' = (10.0×1.0)/15.0
P' = 0.67 atm
