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Arrange the following ions in order of increasing ionic radius: sulfide ion, chloride ion, potassium ion, calcium ion. Smallest Largest
Potassium ion, Sulfide ion, calcium ion, chloride ion
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write the electron dot formula of:NaOH,N2O,SO2,SO3,SO3--(sulphite ion),sulphate ion,thio sulphate ion,phosphoric acid,phosphate ion,potassium per magnate.
Na:O:H the oxygen atom has 2 lone pair e-, 2 e- on top and 2 e- on the bottom of the oxygen atom :N triple bond N - O :::...
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A 0.187 M weak acid solution has a pH of 3.99. Find Ka for the acid.
Express your answer using two significant figures.
A 0.187 M weak acid solution has a pH of 3.99. pH of 3.99. = 4 ( approx ) .[H+] = 10-4 M .A 0.187 M weak acid solution =...
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A type of acid- base titration in which the pH of solution end-point is 5-6 is ___________.
strong acid vs strong base
strong acid vs weak base
weak acid vs strong base
weak acid vs weak base
strong acid vs weak base
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An ion compound contains an unknown ion X and has the formula X3N2. Ion X contains 10 electrons write down the chemical symbol of X.
Solution:X3N2 → 3X2+ + 2N3-Number of electrons in X2+ ion = 10Therefore,Number of electrons in X = 10 + 2 = 12Number of electrons in X = Number of protons...
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an ion compound contains an unknown ion x and has the formula x3n2.Ion x contains 10 electrons.Write down the chemical symbol of x
Solution:X3N2 → 3X2+ + 2N3-Number of electrons in X2+ ion = 10Therefore,Number of electrons in X = 10 + 2 = 12Number of electrons in X = Number of protons in X =...
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1.) For each of the following, indicate whether it is a:
1. Strong acid, 2. Weak acid, 3. Weak base, 4. Strong Base
A. HCl
B. acetic acid
C. Iactic acid
D. H2SO4
E. Ca(OH)2
A. HCl - strong acid; B. Acetic acid - weak acid; C. Lactic acid - weak acid; D. H2SO4 - strong acid; E. Ca(OH)2 - strong base.
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Which factor does lattice energy of ionic compound depends on?
A. Charge on ion
B. Size on ion
C. Size of ion and charge
D. Arrangement of ion
Answer: С
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HSO4- is a weak acid with a Ka of 1.2X 10-2. What is the pH of a .34 M solution of this weak acid?
√0.34 x 1.2x10-2 = 0.06387487770.0638748777 x 0.34 = 0.0217174584-Lg(0.0217174584)= 1.663191
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which of the listed acids are weak acids:
Sulfuric acid
Hydrosulfuric acid
Phosphouric acid
Hydrobromic acid
Nitric acid
Nitrous acid
Perchloric acid
Weak Acid from the given Acid are =1. Hydrosulfuric Acid.2. Phosphouric Acid.3. Nitrous Acid.Above All are consider as weak acid.Rest 4 Acid consider as Strong Acid ( Sulfuric Acid ,...
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