from tkinter import *
import math
root = Tk()
root.geometry("500x300")
root.resizable(0, 0)
root.config(bg="#0c5078")
root.title("Calcular PH")
titulo = Label(text="Calcular PH",
               font=("Arial", "35", "bold"),bg="#0c5078",fg="#04d4db")
titulo.place(relx=0.25, rely=0.05)
texto_sub1  = Label(text=" Concentração de íons hidrogênio (mol/L)",
                    font=("Arial", "12", "bold"),bg="#0c5078",fg="#04d4db")
texto_sub1.place(relx=0.05, rely=0.35)

mol = DoubleVar()
mol_entrada = Entry(textvariable=mol,
                             font=("Arial", "12", "bold"),
                             bg="white", fg="blue", justify='center')
mol_entrada.place(relx=0.7, rely=0.35, relwidth=0.25)
def limpar():
    mol_entrada.delete(0, END)
    resultado.set("")
def app():
    concentracao_hidrogenio= mol.get()
    ph = -1 * math.log10(concentracao_hidrogenio)
    if ph==7:
        classificacao = "Neutro"
    elif ph>=0 and ph<=6.9:
        classificacao = "Ácido"
    elif ph >= 7.1 and ph <= 14:
        classificacao = "Básico"
    else:
        classificacao = "Erro!!"
    mensagem = f"O pH da solução é: {round(ph,1)}\n Classificação:{classificacao}"
    resultado.set(mensagem)



but1 = Button(text="Verificar", bd=2, bg='#107db2', fg='white',
              font=('verdana', 12, 'bold'), command=app)
but1.place(relx=0.05, rely=0.47, relwidth=0.25, relheight=0.1)
but_limpar = Button(text="Limpar", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=limpar)
but_limpar.place(relx=0.35, rely=0.47, relwidth=0.25, relheight=0.1)

but_sair = Button(text="Sair", bd=2, bg='#107db2', fg='white',
                    font=('verdana', 12, 'bold'), command=root.destroy)
but_sair.place(relx=0.65, rely=0.47, relwidth=0.25, relheight=0.1)

resultado = StringVar()
resultado_texto = Label(textvariable=resultado,
                           font=("Arial", 12, "bold"), bg="#cfe2f3")
resultado_texto.place(relx=0.05, rely=0.6, relwidth=0.9,relheight=0.35)
root.mainloop()