(a)
Interpretation:
The given compound can be cleaved using a sharp edge. The compound has to be identified based on formula or properties as ionic or molecular compound.
Concept Introduction:
Ionic compounds:
An atom or a molecule having a net electrical charge is known as ion. Charge of the electron is negative and charge of the proton is positive. Both electron and proton have the same magnitude. Positively charged ion is called cation and negatively charged ion is called anion. Because of the opposite charge of cation and anion they will readily form ionic compounds. Ion consisting of only a single atom known as monoatomic ions and more than two atoms form polyatomic ions.
Molecular compounds:
Molecular compound is formed by the combination of two or more non-metals. It is formed by the sharing of electrons. Water, hydrogen sulfide etc. are examples of molecular compounds.
(b)
Interpretation:
The given compound melts at
Concept Introduction:
Refer to part (a).
(c)
Interpretation:
The given compound
Concept Introduction:
Refer to part (a).
(d)
Interpretation:
The given compound
Concept Introduction:
Refer to part (a).
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Chapter 2 Solutions
Chemistry: The Molecular Science
- If 1.5234 grams of H2C2O4·2H2O is dissolved in water to prepare a 0.250 L solution, identify the equipment needed for this preparation.arrow_forward(a) Calculate the mass percentage of Na2SO4 in a solutioncontaining 10.6 g of Na2SO4 in 483 g of water.arrow_forwardHow many grams of solid calcium acetate, Ca(C₂H3O2)2, would be required to prepare 500.0 mL of 0.230 M aqueous calcium acetate?arrow_forward
- Which of these compounds is most soluble in water and why? (A) CH4; it forms hydrogen bonding with water molecules. (B) NH3; it forms hydrogen bonding with water molecules. (C) PH3: it forms hydrogen bonding with water molecules. (D) All of them; they form hydrogen bonds with water molecules.arrow_forwardChoose which waste disposal container you should dispose of the unused 0.1 M FeClz solution. (A) organic waste B acid waste inorganic waste (D) alkali wastearrow_forward1) Calculate the theoretical percent water in the following hydrates. (a) chromium(III) chloride hexahydrate (b) tin(IV) chloride hexahydrate 2) If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) + SO3(g) If you are heating a sample of CoSO4·6H2O and this reaction occurs along with dehydration, what will happen to the experimental percent water? Explain your answer. 3) A 9.500 g sample of CaCl2∙xH2O after heating gives an anhydrous residue of 6.348 g. What is the value of x? 4) A 5.000 g sample that contained NaCl and BaCl2·2H2O was heated. After heating the sample had a weight of 4.688 g. What is the percent NaCl in the sample? 5) A hydrate has the following percent composition: Pb = 54.61%, C = 12.66%, H = 1.61%, O = 16.88%, and H2O = 14.24%. What is the formula of the hydrate.arrow_forward
- Suppose CaO is placed in a vacuum in which the partial pressure of oxygen is 10^-5mm Hg. Will CaO be reduced?arrow_forwardA sample of 70.5 mg of potassium phosphate is added to 15.0 mL of 0.050 M silver nitrate, resulting in the formation of aprecipitate. (a) Write the molecular equation for the reaction. (b) What is the limiting reactant in the reaction? (c) Calculatethe theoretical yield, in grams, of the precipitate that forms.arrow_forwardDisulfides are compounds that have S— S bonds, like peroxideshave O— O bonds. Thiols are organic compoundsthat have the general formula R— SH, where R is a generichydrocarbon. The SH- ion is the sulfur counterpart ofhydroxide, OH-. Two thiols can react to make a disulfide,R— S— S— R. (a) What is the oxidation state of sulfur ina thiol? (b) What is the oxidation state of sulfur in a disulfide?(c) If you react two thiols to make a disulfide, are youoxidizing or reducing the thiols? (d) If you wanted to converta disulfide to two thiols, should you add a reducingagent or oxidizing agent to the solution? (e) Suggest whathappens to the H’s in the thiols when they form disulfides.arrow_forward
- If cobalt(II) sulfate is heated too strongly, the following reaction will occur CoSO4(s) à CoO(s) + SO3(g) If you are heating a sample of CoSO4·6H2O and this reaction occurs along withdehydration, what will happen to the experimental percent water? Explain your answer.arrow_forwardEqual length of magnesium ribben are taken in two test tubes ‘A’ and ‘B\ H2SO4 is added to test tube ‘A’ and H2CO3 in the test tube ‘B’ in equal amounts:(a) Identify the test tube showing vigorous reaction.(b) Give reason to support your answer.(c) Name the gas liberated in both the tubes. How will you prove its liberation?(d) Write chemical equations for both reactions.(e) Out of the two acids taken above(i) which one will have lower pH value.(ii) lowerH+ concentration respectively.arrow_forwardConsider the solid Na2CO3 dissolving in water. (a) Write the balanced dissociation equation with phase labels. (b) Draw the solvation of the resulting ions in water.arrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning