Answer:
Up to 80 - 120 days.
Explanation:
The flower will probably stay six to twelve days or so.
I'm not sure what's your hypothesis going to be, but I'll give you an example.
" <em>If</em> I __________, <em>then</em> the sunflower will grow up to 80 to 120 days."
In the blank space, you can write what you're going to do to your sunflower during the experiment.
Please correct me if I'm wrong.
Answer:
Explanation:
For a general equilibrium
aA +bB ⇔ cC + dD ,
the equilibrium constant is K = [C]^c [D]^d / [A]^a[B]^b.
Our reasoning here should be based on the fact that Q has the same expression as K, but is used when the system is not at equilibrium, and the system will react to make Q = K to attain it ( Le Chatelier´s principle ).
So with this in mind, lets answer this question.
1. False: Q can large or small but is not the value of the equilibrium constant, it will predict the side towards the equilibrium will shift to attain it.
2. False: Given the expression for the equilibrium constant, we know if K is small the concentrations of the reactants will be large compared to the equilibrium concentrations of the products.
3. False: when the value of K is large, the equilibrium concentrations of the products will be large and it will lie on the product side.
4. True: From our previous reasongs this is the true one.
5. False: If K is small, the equilibrium lies on the reactants side.
Answer:
T = 401.6 K
Explanation:
Given reaction:
The thermodynamic parameters; ΔG°, ΔH° and ΔS° are related via the Gibbs -Helmholtz equation given as:
For a given reaction, the gibbs free energy change ΔG° is related to the equilibrium constant K as:
It is given that K = 1,
Therefore,
Substituting for ΔG° in equation (1)
Answer:
124.6 g/mol will be the molar mass for the unknown non-electrolyte
Explanation:
Freezing point depression → ΔT = Kf . m
ΔT indicates the temperature variation:
Freezing point of pure solvent - Freezing point of solution
Kf is the cryoscopic constant → 29.8 K/m
Generally the unit is °C/m but we have to type the ΔT by K so let's replace the data given → 7.03 K = 29.8 K/m . m
m = 7.03 K / 29.8 m/K = 0.236 mol/kg
m means molality, the moles of solute in 1 kg of solvent. If we want to determine the moles of solute we do this operation:
molality . kg, so we may convert the mass of solvent from g to kg.
50 g . 1kg/1000g = 0.05 kg
0.236 mol/kg . 0.05 kg = 0.0118 moles
Molar mass → g/mol → So 1.47 g / 0.0118 mol = 124.6 g/mol
Answer:
D. Mass is the amount of matter and weight is the effect of gravity on mass.
Explanation:
Mass is, by definition, the amount of matter that makes up an object. The weight of an object is directly related to the pull of gravity.
