Explanation:
An equilibrium constant of the reaction is the ratio of the concentrations of the products to the concentration of the reactants raised to their power equal to stoichiometrc coefficients in a balanced chemical equation.
Equilibrium constant equation for the reaction of acetic acid with water.
The equilibrium constant of the above reaction will written as:
Answer:
66.4g
Explanation:
Given parameters:
Mass of AgNO₃ = 69.1g
Unknown:
Mass of Ag₂CrO₄
Solution:
2AgNO₃+ Na₂CrO₄ ⟶ Ag₂CrO₄ + 2NaNO₃
The given equation is balanced.
To solve this problem, solve from the known to the unknown;
1. Find the number of moles of AgNO₃;
Number of moles =
atomic mass of Ag = 107.9g/mol
N = 14g/mol
O = 16g/mol
Molar mass of AgNO₃ = 107.9 + 14 + 3(16) = 169.9g/mol
Number of moles = = 0.41moles
2. From the balanced equation;
2 moles of AgNO₃ produced 1 moles of Ag₂CrO₄ ;
0.41 moles of AgNO₃ will produce = 0.2moles of Ag₂CrO₄
3:
Mass of Ag₂CrO₄ = number of moles x molar mass
Atomic mass of Ag = 107.9g/mol
Cr = 52g/mol
0 = 16g/mol
Molar mass = 2(107.9) + 52 + 4(16) = 331.8g/mol
so, mass of Ag₂CrO₄ = 0.2 x 331.8 = 66.4g
I got B. Because the answer is K2SO4, I got it right on my test so I know its right
Answer:
Solids.
Explanation:
Group 8 on the Periodic Table consists of transition metals:
- Fe (Iron)
- Ru (Ruthenium)
- Os (Osmium)
- Hs (Hassium)
Usually, transition metals are solids.
First calculate density of the the metal (should equal to density of iron)
- Mass=18.2g
- Volume=2.56cm^3
Metal is not iron