Concept explainers
(a)
Interpretation:
The formulas for the following ionic compound – Potassium bicarbonate is to be written.
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions:
Ionic compounds containing positive and negative charges present must add to zero.
If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclose in parentheses and a subscript, placed outside of the parentheses. Example-
Sometimes same element is present in two different locations. For example,
(b)
Interpretation:
The formulas for the following ionic compound –Gold (III) sulphate is to be written.
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions:
Ionic compounds containing positive and negative charges present must add to zero.
If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclose in parentheses and a subscript, placed outside of the parentheses. Example-
Sometimes same element is present in two different locations. For example,
(c)
Interpretation:
The formulas for the following ionic compound – silver nitrate is to be written.
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions:
Ionic compounds containing positive and negative charges present must add to zero.
If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclose in parentheses and a subscript, placed outside of the parentheses. Example-
Sometimes same element is present in two different locations. For example,
(d)
Interpretation:
The formulas for the following ionic compound –copper (II) phosphate is to be written.
Concept Introduction:
Chemical formulas and names for ionic compounds containing polyatomic ions:
Ionic compounds containing positive and negative charges present must add to zero.
If more than one polyatomic ion is present in a compound, the chemical formula can be written as a polyatomic ion is enclose in parentheses and a subscript, placed outside of the parentheses. Example-
Sometimes same element is present in two different locations. For example,
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Chapter 4 Solutions
EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- The isoelectric point (pI) of glutamic acid is pH 3.08. Draw the structure of the major form of glutamic acid at pH values of: a. 1.00 b. 3.08 c. 11.00.arrow_forwardA 0.10 M solution of the deadly poison hydrogen cyanide, HCN, has a pH of 5.2. Calculate the [H3O+] of the solution. Is HCN a strong or a weak acid?arrow_forwardWhat is the molarity of a solution that contains 50.0 g of vitamin B1 hydrochloride (molar mass = 337 g/mol) in 160 mL of solution?arrow_forward
- An analytical chemist is titrating 205.5 mL of a 0.5600M solution of hydrazoic acid (HN3) with a 1.100M solution of NaOH. The pK of hydrazoic acid is 4.72. Calculate the pH of the acid solution after the chemist has added 111.8 mL of the NaOH solution to it. Note for advanced students: you may assume the final volume equals the initial volume of the solution plus the volume of NaOH solution added. Round your answer to 2 decimal places. pH = 0arrow_forwardConsider a buffer solution that contains 0.55 M NH2CH2CO2H and 0.35 M NH2CH2CO2Na. pKa(NH2CH2CO2H)=9.88. a. Calculate its pH. b. Calculate the change in pH if 0.155 g of solid NaOH is added to 250 mL of this solution. c. If the acceptable buffer range of the solution is ±0.10 pH units, calculate how many moles of H3O+ can be neutralized by 250 mL of the initial buffer.arrow_forwardThe principal component of many kidney stones is calcium oxalate, CaC2O4 . A kidney stone recovered from a typical patient contains 8.5 * 1020 formula units of calcium oxalate. How many moles of CaC2O4 are present in this kidney stone? What is the mass of the kidney stone in grams?arrow_forward
- Research indicates that ibuprofen, a drug used to relieve inflammation and pain, is a mixture of two enantiomers. What are enantiomers?arrow_forwardConsider the following acids and their ionization constant, determine which conjugate base is HCOOH Ka = 1.7 x 10-4 (b) HCN Ka = 4.9 x 10-10arrow_forwardWhich statements are true regarding the chemical formula Pb(NO3)4. Select the three that apply. The formula unit has a ratio of four nitrate ion for every lead (IV) ion. Each Nitrogen atom is bonded with three oxygen atoms Formula unit contains more lead (IV) ions than nitrate ions. Each nitrate ion is bonded with four lead (IV) ions. Each formula unit has total of seventeen atomsarrow_forward
- The following chemical reaction is observed in aqueous solution. [Fe(H2O)6] 3+ (aq) = [Fe(H2O)s(OH)]2+(aq) + H*(aq) Is [Fe(H2O)6]3+ an acid, a base, or a salt? Please explain how you determined your answer.arrow_forwardThe specific gravity of the following compounds are: Ether – 0.715; Bromine - 3.016; Glycerin – 1.25; and Chloroform - 1.476. If 22 ml of the unknown solution weighs 32.47 g, what is the identity of the solution? Ether None of the choices Bromine Chloroform Glycerinarrow_forwardRefer to the following titration curve below: 13 12 11 10 7 6 5 4 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Volume of Titrant / mL - Unknown Acid 0.10 mol/L - titrant = NaOH 0.1 mol/L What is the isoelectric point of histidine, according to the titration curve? Input your answer until the first decimal point. 2. 9,arrow_forward