Concept explainers
(a)
Interpretation:
The given compound
Concept Introduction:
Ionic compounds:
Ionic compounds are formed when a metal and non-metal combines. Metal forms cation by donation of electrons while the non-metal forms anion by accepting the electron.
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
Concept Introduction:
Refer part (a).
(c)
Interpretation:
The compound which is liquid at room temperature has to be identified based on the properties or formulas as ionic and or molecular compound.
Concept Introduction:
Refer part (a).
(d)
Interpretation:
The compound which conducts electricity when molten has to be identified based on the properties or formulas as ionic and or molecular compound.
Concept Introduction:
Refer part (a).
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OWLV2 FOR MOORE/STANITSKI'S CHEMISTRY:
- 1) A sample of blue crystals of copper (II) sulfate pentahydrate was heated to produce the copper(Il)sulfate tetrahydrate. (a) Write the chemical formulas of the copper(II)sulfate pentahydrate and copper(II)sulfate tetrahydrate. (b) Calculate mass percent of water in copper(II)sulfate pentahydrate (c) If 7.491 g of the copper (II) sulfate pentahydrate produces 6.951 g of the copper (II) sulfate tetrahydrate, how many grams of anhydrous copper(I1)sulfate could be obtained? (Cu=63.5 g/mol, S=32.0 g/mol, O=16.0 g/mol, H=1 g/mol)arrow_forwardA gaseous binary compound has a vapor density that is 2.53 times that of nitrogen at 100°C and atmospheric pressure. When 8.21 g of the gas reacts with AlCl3 at 100°C, 1.62 g gaseous nitrogen is produced, removing all of the nitrogen originally present.(a) Estimate the molecular mass of the gaseous compound.(b) How many nitrogen atoms are there in a molecule ofthe compound?(c) What is the maximum possible value of the atomicmass of the second element?(d) Are other values possible for the atomic mass of thesecond element? Use a table of atomic masses to identify the element that best fits the data.(e) What is the molecular formula of the compound?arrow_forwardName each acid. (a) HClO (b) HClO2 (c) HClO3 (d) HClO4arrow_forward
- (a) List four physical characteristics of a solid metal. (b) List two chemical characteristics of a metallic element.arrow_forwardName each ionic compound. In each of these compounds,the metal forms only one type of ion. (a) CsCl (b) SrBr2 (c) K2O (d) LiFarrow_forwardwrite a balanced chemical equation for each (A) Iron (III) chloride reacts with sodium hydroxide to produce iron (III) hydroxide and sodium chloride. (B) Magnesium nitrite reacts with perchloric acid to produce magnesium perchlorate and nitrous acid. (C) Copper(II) hydroxide reacts with hydrosulfuric acid to produce copper (II) sulfide and water.arrow_forward
- Write the empirical formulas for (a) glucose, a substance also known as either blood sugar or dextrose—molecular formulaC6H12O6; (b) nitrous oxide, a substance used as an anesthetic and commonly called laughing gas—molecular formula N2O.arrow_forwardAmmonium dihydrogen phosphate, formed from thereaction of phosphoric acid with ammonia, is used as a cropfertilizer as well as a component of some fire extinguishers. (a) What are the mass percentages of N and P in the com-pound? (b) How much ammonia is incorporated into 100. g ofcompound?arrow_forward(c) Argon d) Fluorine 6. The number of nonmetal atoms in Al2(SO4)3 (a) 2 15 (b) (c) 12 (d) 8 7. Which of the following properties of water is not a (a) Water normally boils at 100°Carrow_forward
- (a) What is a hydrocarbon? (b) Butane is the alkane with a chain of four carbon atoms. Write a structural formula for this compound and determine its molecular and empirical formulas.arrow_forward3.arrow_forwardAmmonium dihydrogen phosphate, formed from the reaction of phosphoric acid with ammonia, is used as a crop fertilizer as well as a component of some fire extinguishers. (a) What are the mass percentages of N and P in the compound? (b) How much ammonia is incorporated into 100. g of the compound?arrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage Learning