Answer:
18
Explanation:
Element Symbol no of Atoms
Copper Cu 3
Sulfur S 3
Oxygen O 12
18 = total
When q is the concentration of the products / the concentration of the reactants
when the balanced equation of the reaction is:
MgCO3(s) → Mg^2+ + CO3^2-
so, Q = [Mg^2+][CO3^2-]
and we neglect the concentration of MgCO3(s) as it is in the solid phase.
when [Mg^2+] = 2.5 x 10^-3 m
[CO3^2-] = 2 x 10^-3 m
so by substitution:
Q = 2.5 x 10^-3 * 2 x 10^-3
= 0.000005 M
Answer:
False
Explanation:
It is psychological for you do not depend on it to live.
(i) Hydrogen chloride gas is prepared by treating Sodium chloride with concentrated sulphuric acid. The HCl gas is passed through a drying agent to remove moisture where concentrated sulphuric acid plays the role of dehydrating agent as well.
(ii) NaCl+H2
SO4 →NaHSO 4
+HCl(g)
Hope it helps :)
Answer:
0.238 M
Explanation:
A 17.00 mL sample of the dilute solution was found to contain 0.220 M ClO₃⁻(aq). The concentration is an intensive property, so the concentration in the 52.00 mL is also 0.220 M ClO₃⁻(aq). We can find the initial concentration of ClO₃⁻ using the dilution rule.
C₁.V₁ = C₂.V₂
C₁ × 24.00 mL = 0.220 M × 52.00 mL
C₁ = 0.477 M
The concentration of Pb(ClO₃)₂ is: