(a)
Interpretation: The chemical formula and molecular (formula) mass of ammonium sulfate are to be interpreted.
Concept Introduction: An ionic compound is composed of cation and anion. Here, the cation is positively charged, and the anion carries a negative charge.
The cation and anion can be composed of more than one atom. Such type of ions is called polyatomic ions. The chemical formula of an ionic compound can be interpreted with the help of the criss-cross method.
(b)
Interpretation: The chemical formula and molecular (formula) mass of sodium dihydrogen phosphate are to be interpreted.
Concept Introduction: An ionic compound is composed of cation and anion. Here cation is positively charged, and anion carries a negative charge.
The cation and anion can be composed of more than one atom. Such type of ions is called polyatomic ions. The chemical formula of an ionic compound can be interpreted with the help of the criss-cross method.
(c)
Interpretation: The chemical formula and molecular (formula) mass of potassium bicarbonate are to be interpreted.
Concept Introduction: An ionic compound is composed of cation and anion. Here, the cation is positively charged, and the anion carries a negative charge.
The cation and anion can be composed of more than one atom. Such type of ions is called polyatomic ions. The chemical formula of an ionic compound can be interpreted with the help of the criss-cross method. The molecular mass is the sum of the
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
CHEMISTRY:MOLECULAR...(LL) W/ALEKS
- The element bromine is Br2, so the mass of a Br2 molecule is the sum of the mass of its two atoms. Bromine has two isotopes. The mass spectrum of Br2 produces three peaks with relative masses of 157.836, 159.834, and 161.832, and relative heights of 6.337, 12.499. and 6.164, respectively. (a) What isotopes of bromine are present in each of the three peaks? (b) What is the mass of each bromine isotope? (c) What is the average atomic mass of bromine? (d) What is the abundance of each of the two bromine isotopes?arrow_forwardGallium arsenide, GaAs, has gained widespread use in semiconductor devices that convert light and electrical signals in fiber-optic communications systems. Gallium consists of 60.% 69Ga and 40.% 71Ga. Arsenic has only one naturally occurring isotope, 75As. Gallium arsenide is a polymeric material, but its mass spectrum shows fragments with the formulas GaAs and Ga2As2. What would the distribution of peaks look like for these two fragments?arrow_forwardA compound associated with the odor of garlic on a persons breath has the chemical formula CyH8S and a formula mass of 88.19 amu. What number does y stand for in the chemical formula of the compound?arrow_forward
- 3.116 The simplest approximate chemical formula for the human body could be written as C728H4850O1970N104Ca24P16K4S4Na3Cl2Mg. Based on this formula, describe how you would rank by mass the ten most abundant elements in the human body.arrow_forwardWrite the chemical formulas for (a) potassium sulfide, (b) calcium hydrogen carbonate c) nickel(II) perchlorate. for (d) silicon tetrabromide, (e) disulfur dichloride.arrow_forward7. Isotopes. (a) Argon has three naturally occurring isotopes, 36Ar, 38Ar, and 40Ar. What is the mass number of each? How many protons, neutrons, and electrons are present in each? (b) Gallium has two naturally occurring isotopes, 6°Ga (isotopic mass = 68.9256 amu, abundance 60.11%) and 71Ga (isotopic mass = 70.9247 amu, abundance = 39.89%). Calculate the atomic mas of gallium.a %3D (c) Chlorine has two naturally occurring isotopes, 35CI (isotopic mass = 34.9689 amu) and 3"Cl (isotopic mass = 36.9659 amu). If chlorine has an atomic mass of 35.4527 amu, what is the percent abundance of each isotope?arrow_forward
- Name the following ionic compounds: (a) K,Cr,O7, (b) Li,C,O4, (c) CUNO3.arrow_forwardCalculate the molecular (formula) mass of each compound:(a) dinitrogen pentaoxide; (b) lead(II) nitrate; (c) calcium perox-idearrow_forwardA compound Y containing carbon, hydrogen and oxygen only have the following composition by mass:C: 40.0% ; H: 6.7% ; O: 53.3%(a) Calculate the empirical formula of the compound. (Relative atomic masses: H =1.0, C = 12.0, O = 16.0) (b) Given that the relative molecular mass of compound Y is 180. Find its molecular formula.arrow_forward
- 1. Provide the chemical formula (including brackets where appropriate) or systematic name for the following compounds. (a) gold(I) hypoiodite (b) HI(aq): (f) Ca(ClO4)2·4H2O: 2. What mass (in g) of chlorine atoms are there in a sample that consists of 5e+23 molecules of molecular chlorine? INSTRUCTIONS: Report your answer to 3 significant figures in scientific notation unless stated otherwise. DO NOT include the units in your answer.arrow_forward3. (a) Magnesium oxide was formed when the metal burns in air. (i) If 1.25 g of magnesium oxide contains 0.754 g of magnesium, determine the mass ratio of magnesium magnesium oxide. (ii) Calculate the weight of magnesium in 534 g of magnesium oxide.arrow_forwardThe element oxygen has three naturally occurring isotopes, with 8,9, and 10 neutrons in the nucleus, respectively. (a) write the full chemical symbols for these three isotopes. (b) Describe the similarities and differences between the three kinds of atoms of oxygen.arrow_forward
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningIntroductory Chemistry: A FoundationChemistryISBN:9781337399425Author:Steven S. Zumdahl, Donald J. DeCostePublisher:Cengage Learning