Concept explainers
Calculate the atomic percentages for each of the following compounds.
- a. HfO2
- b. BeCl2
- c. Ti(OH)4
- d. FeO
- e. SiO2
- f. B(OH)3
(a)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
(b)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
(c)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
(d)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
(e)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
(f)
Interpretation:
Atomic percentages of each atoms in given compound has to be calculated.
Concept introduction:
Atomic percentage:
Percentage of one type of atom that present in a molecule is known as atomic percentage.
Explanation of Solution
Given:
Molar mass of
Atomic percentages are,
Want to see more full solutions like this?
Chapter 1 Solutions
Loose Leaf for Chemistry in Context
Additional Science Textbook Solutions
CHEMISTRY-TEXT
Organic Chemistry
Chemistry: Structure and Properties (2nd Edition)
Organic Chemistry (8th Edition)
Chemistry: The Central Science (14th Edition)
- A sample of an iron alloy contains 92.1 g Fe. 2.59 g C. and Cr. Calculate the percent by mass of each component present in the alloy sample.arrow_forwardPolystyrene can be prepared by heating styrene with tribromobenzoyl peroxide in the absence of air. A sample prepared by this method has the empirical formula Br3C6cH3(C8H8)n, where the value of n can vary from sample to sample. If one sample has 0.105% Br, what is the value of n?arrow_forwardThere are two binary compounds of mercury and oxygen. Heating either of them results in the decomposition of the compound, with oxygen gas escaping into the atmosphere while leaving a residue of pure mercury. Heating 0.6498 g of one of the compounds leaves a residue of 0.6018 g. Heating 0.4172 g of the other compound results in a mass loss of 0.016 g. Determine the empirical formula of each compound.arrow_forward
- An element X bas five major isotopes, which are listed below along with their abundances. What is the element? Isotope Percent Natural Abundance Mass (u) 46x 8.00% 45.95232 47x 7.30% 46.951764 48x 73.80% 47.947947 49x 5.50% 48.947841 50x 5.40% 49.944792arrow_forwardNatural rubidium has the average mass of 85.4678 u and is composed of isotopes 85Rb (mass = 84.9117 u) and 87Rb. The ratio of atoms 85Rb/ 87Rb in natural rubidium is 2.591. Calculate the mass of 87Rb.arrow_forwardMalic acid, an organic acid found in apples, contains C, H, and O in the following ratios: C1H1.50O1.25 What is the empirical formula of malic acid?arrow_forward
- What number of atoms of nitrogen are present in 1.00 g of each of the compounds in Exercise 51?arrow_forwardYou find a compound composed only of element X and chlorine. and you know that the compound is 13.10% X by mass. Each molecule of the compound contains six times as many chlorine atoms as X atoms. What is element X?arrow_forward239 Polybutadiene is a synthetic elastomer, or rubber. The corresponding monomer is butadiene, which has the molecular formula C4H6. What is the empirical formula of butadiene?arrow_forward
- A substance X2Z has the composition (by mass) of 40.0% X and 60.0% Z. What is the composition (by mass) of the compound XZ2?arrow_forwardhe “Chemistry in Focus” segment Plastic That Talks and Listens! discusses polyvinylidene difluoride (PVDF). What is the empirical formula of PVDF? Note: An empirical formula is the simplest whole-number ratio of atoms in a compound. This is discussed more fully in Sections 8.7 and 8.8 of your text.arrow_forwardA Commercial sodium "hydrosulfite" is 90.1% Na2S2O4. The sequence of reactions used to prepare the compound is Zn(s) + 2 SO2(g) ZnS2O4(s) ZnS2O4(s) + Na2CO3(aq) ZnCO3(s) + Na2S2O4(aq) (a) What mass of pure Na2S2O4 can be prepared from 125 kg of Zn, 500. g of SO2, and an excess of Na2CO3? (b) What mass of the commercial product would contain the Na2S2O4, produced using the amounts of reactants in part (a)?arrow_forward
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning