Answer:
21.3 g of CaCl₂ are produced in this reaction
Explanation:
Reaction is this:
CaCO₃ + 2HCl → CaCl₂ + H₂CO₃
Molar mass salt : 100.08 g/m
Molar mass acid: 36.45 g/m
We have 28 g / 100.08 g/m = 0.279 moles of CaCO₃
We have 14 g / 36.45 g/m = 0.384 moles of HCl
Ratio is 1:2, so 0.279 moles of salt will need the double of moles of acid.
0.279 . 2 = 0.558 moles of acid needed. (I have only 0.384 moles, so the acid is the limiting reactant)
0.384 moles of HCl produce the half of moles of CaCl₂ (This ratio is 1:2) --> 0.192 moles
Molar mass of CaCl₂ = 110.98 g/m
Mol . molar mass = mass → 0.192 m . 110.98 g/m = 21.3 g
#1
<span>The rate of diffusion of a gas is inversely proportional to the square root of its molecular weight.
#2
shape, molecular weight. I don't know for sure though
#3
</span>O2, N2, Ar, H2O vapor
Answer:
The ion will repel the substance because it has lost two electrons.
Explanation:
An ion is a charged specie. We can see from the question that the ion has twelve positive and ten negative particles.
If there are more positive particles than negative particles, then the ion is positively charged.
If the ion is positively charged, it will repel another positively charged particle because like charges repel while opposite charges attract.
En una solución acuosa donde el agua es el solvente, el soluto que será disuelto por el agua tiene menos partículas, lo que hace que las partículas se muevan en un movimiento aleatorio. El agua pura tiene una baja concentración de iones y, por lo tanto, no conduce electricidad.
