Concept explainers
(a)
Interpretation:
Among the given molecules, number of molecules that contain four or fewer atoms present in the mixture has to be given.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses
(a)
Answer to Problem 1.87EP
In the given mixture of five molecules, two kinds of molecules contains four or fewer atoms in it.
Explanation of Solution
Given molecules in mixture are
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
From the above number of atoms present in each and every molecule, the atoms that contains four or fewer atoms are
(b)
Interpretation:
The different kind of atoms that is present in the mixture has to be given.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(b)
Answer to Problem 1.87EP
Four kinds of atoms are present in the mixture.
Explanation of Solution
Given molecules in mixture are
Looking into the molecules in the given mixture, it is found that there are four kind of atoms present in the given molecules and they are
(c)
Interpretation:
The total number of atoms that is present in the mixture that contains five molecules of each component has to be given.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(c)
Answer to Problem 1.87EP
There are a total of 110 atoms present.
Explanation of Solution
Given molecules in mixture are
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
The total number of atoms that is present in mixture which contains one molecule of each component can be found by summing up the number of atoms in all molecules. This gives the total number of atoms as 22.
If the mixture contains five molecules of each component, then the total number of atoms can be found as shown below,
Therefore, there are 110 atoms present in the mixture that contains five molecules of each component.
(d)
Interpretation:
The total number of hydrogen atoms that is present in the mixture that contains four molecules of each component has to be given.
Concept Introduction:
The composition of a chemical compound can be presented in a very precise was with the use of chemical formula. Chemical formula uses chemical symbols of the elements that is present in the compound and numerical subscripts that represent how many number of atoms of each element is present in the compound.
(d)
Answer to Problem 1.87EP
There are a total of 56 hydrogen atoms present.
Explanation of Solution
Given molecules in mixture are
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
Number of atoms in
The total number of hydrogen atoms that is present in mixture which contains one molecule of each component can be found by summing up the number of hydrogen atoms in all molecules. This gives the total number of hydrogen atoms as 14.
If the mixture contains four molecules of each component, then the total number of hydrogen atoms can be found as shown below,
Therefore, there are 56 hydrogen atoms present in the mixture that contains four molecules of each component.
Want to see more full solutions like this?
Chapter 1 Solutions
General, Organic, and Biological Chemistry
- Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02 g/mol; MM CaSO4 = 136.14 g/mol) mass of sample 1.07 mass of water in sample 0.22 mass of CaSO4 in sample 0.75arrow_forward1. ____N2 + 3H2 ____NH32. ____ KClO3 ____ KCl + 3 O23. ____NaCl + ____F2 2NaF + ____Cl24. ____H2 + ____O2 2H2O5. 2 AgNO36. ____ AlBr37. ____CH48. ____C3H89. ____ C8H18 + 25 O2 ____ CO210. ____ FeCl3 + ____ NaOH ____ Fe(OH)3 + 3 NaClarrow_forwarda) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in grams, of a)one helium atom? b)one potassium atom? c. How many sodium atoms are there in 6.00 moles of sodium? d. a)How many moles of sodium atoms are there in100.0g of sodium?b)How many sodium atoms are there in100.0g of sodium? e. Calculate the number of moles in 50.7grams of hydrogen.arrow_forward
- 1.08 ×10-3 mol H2S 57.2 mmol SO3 1.19 mol xenon dioxide m(H2S) = m(SO3)= m(xenon dioxide)=arrow_forwardAbout Sampling, tick only the incorrect alternative(s). Choose one or more: A) Identifying the nature of a substance present in an unknown sample is called qualitative analysis. The process of measuring how much a constituent is present in a substance is called quantitative analysis. B) A type of error that is known due to procedures that cause a measure to be too large or too small is called a random error, such as reading a scale. C) Sample preparation is the process in which a representative sample is converted into a form suitable for chemical analysis. This usually means dissolving the sample. For a sample with low analyte concentration it may need to be diluted before being analyzed. D) Sampling is the process used to collect a representative sample for analysis. As real abnormals, as regulators are used in real experiments, they also typically prepare some degree of sample preparation to remove substances that do not interfere with the analysis of the desired analyte and…arrow_forward1A. Nitrogen gas and Hydrogen gas were combined to form Ammonia. Compute for the mol of Nitrogen when Hydrogen is 9.45 grams. Atomic weight: Nitrogen 14.0g/mol Hydrogen 1.00g/mol 1B. Nitrogen gas and Hydrogen gas were combined to form Ammonia. Compute for the grams of Nitrogen when Hydrogen is 7.08 mol Atomic weight: Nitrogen 14.0g/mol Hydrogen 1.00g/mol 1C. Nitrogen gas and Hydrogen gas were combined to form Ammonia. Compute for the mol of Hydrogen when Nitrogen is 5.05 mol Atomic weight: Nitrogen 14.0g/mol Hydrogen 1.00g/mol 1D. Nitrogen gas and Hydrogen gas were combined to form Ammonia. Compute for the grams of Nitrogen when Hydrogen is 7.08 mol Atomic weight: Nitrogen 14.0g/mol Hydrogen 1.00g/mol 1E. Nitrogen gas and Hydrogen gas were combined to form Ammonia. Compute for the grams of Ammonia when Nitrogen is 3.09 grams. Atomic weight: Nitrogen 14.0g/mol Hydrogen 1.00g/molarrow_forward
- A large number of molecules is called a an element b a compound c a mixture d Depends on the number of molecules e None of thesearrow_forwardLimestone is typically 50.0% (w/w) CaCO3. How many grams of CaCO3 are present in a limestone sample weighing 1.2 kg?arrow_forwardWhat is the mass of H2SO4 in a 48.1 cm3 sample of concentrated sulfuric acid that has a density of 1.84 g/cm3? Assume that the Sulfuric acid solution has a 98.3% of mass to mass percentage.arrow_forward
- How do I do this problem??? Consider 80.0-g samples of two different compounds consisting of only carbon and oxygen. One of the compounds consists of 21.8 g of carbon, and the other has 34.3 g of carbon. Determine the ratio in whole numbers of the masses of carbon that combine with 1.00 g of oxygen between the two compounds.arrow_forwardThe formula for cobalt(II) nitrate is Co(NO3)2. a. How many grams of cobalt(II) nitrate are present in formula 9.60 x 10^21 units of this compound?____grams b.How many formula units of cobalt(II) nitrate are present in 2.41 grams of this compound? ________formula unitsarrow_forwardWhich of the following is most likely going to be a heterogeneous mixture? (A) C10H8 and H2O (B) H2S and H2O (C) O2 and O3 (D) NaCl and CH3OHarrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY