Graph B because that graph shows negative acceleration due to velocity decreasing.
//Hope I helped :)//
Answer : The molecular formula of the compound is,
Explanation :
Molecular formula : It is the representation of substance by the symbols and it denotes the number of atoms of each element present in the compound.
Now count the number of carbon, hydrogen, nitrogen and oxygen atoms present in the given compound.
As we see that in the given compound, there are 8 atoms of carbon element, 3 atoms of oxygen element, 1 atom of nitrogen element, 9 atoms of hydrogen element.
Thus, the molecular formula of the compound will be
I don’t really know but I’m trynna to answer anything so I can ask my questions
Answer:
n = 1.89 mol.
Explanation:
Think of this as adiabatic free expansion. This means constant temperature -- we know this because the internal energy does not change.
Since the temperature is constant, the entropy change can be given by:
Entropy = nRln(V2/V1)
Entropy = 17.28 J/K. R = 8.314 (gas constant). V2 = 3V. V1 = V.
Thus, we get:
17.28 = n(8.314)ln3
Solve for n. We get n = 1.89 mol.
Answer:
The answer to your question is: V1 = 27.8 ml of HCl 18 M
Explanation:
Data
HCl = [18M]
HCl Vol = ?
HCl = [ 2M]
HCl vol = 250 ml
Formula
V₁ C₁ = V₂ C₂
V₁ = V₂ C₂ / C₁
Process (substitution)
V₁ = (250)(2) / 18
V₁ = 500 / 18
V1 = 27.8 ml