When salt is added to ice the temperature of the ice will even drop or the ice will melt
Answer:
La respuesta es
<h2>158 g</h2>
Explanation:
La masa de una sustancia cuando se le da la densidad y el volumen se puede encontrar usando la fórmula
<h3>masa = Densidad × volumen</h3>
De la pregunta
volumen = 100 mL
densidad = 1.58 g/mL
La masa de sustancia es
masa = 100 × 1.58
Tenemos la respuesta final como
<h3>158 g</h3>
Espero que esto te ayude
Answer:
the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature
The first step is calculating the number of HCl moles. The molar mass of HCl is AH+ACl which is 1+35,5=36,5 g/mole. The formula for the pH is -lg[H+] where [H+] is the molar concentration of protons in the solution. To find the molar concentration we need to divide the number of moles by the volume(L).
We get the number of moles by dividing the mass given in the problem to the molar mass of the compound.1.825/36.5=0.05 moles of HCl so 0.05 moles of
H+.Molarity=n/V=0.05/0.25=0.2moles/liter.The pH is -lg0.2=2.321.
