5. What is the molar mass of Ca3(PO4)2? A) 87.05 g/mol B) 215.20g/mol C) 309.97 g/mol D) 430.39 g/mol 6. The average of the total mass of all an element's isotopes is called: A) the isotopic abundance B) the weighted average C) the average molar mass D) the average atomic mass

5. What is the molar mass of Ca3(PO4)2? A) 87.05 g/mol B) 215.20g/mol C) 309.97 g/mol D) 430.39 g/mol 6. The average of the total mass of all an element's isotopes is called: A) the isotopic abundance B) the weighted average C) the average molar mass D) the average atomic mass

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter3: Stoichiometry

Section: Chapter Questions

Problem 44E: The element silver (Ag) has two naturally occurring isotopes: 109 Ag and 107Ag with a mass of...

See similar textbooks

Related questions

Q: 3) ICE tables- equilibrium concentration/mass Consider the following reaction: CuS(s) + O₂(g) =…

Q: What is the electron-pair geometry for I in IF2 ? Ⓒ What is the the shape (molecular geometry) of…

Q: Process Aerobic carbon removal Nitrification Denitrification Anaerobic digestion Anammox Electron…

A: 1).In aerobic carbon removal, oxygen (O2) serves as the electron acceptor, while an organic…

Q: . What type of chemical reaction is illustrated by the following reaction? CH3OOCH3 + H2O ⎯→ CH3OOH…

A: The given reaction is CH3COOCH3 + H2O ⎯→ CH3COOH + CH3OH ( In the given…

Q: What is the formula for ammonium acetate? What is the formula for ammonium sulfate ? What is the…

Q: Use the following information to answer questions 9 and 10. Sulfuryl chloride decomposes according…

A: A question based on reaction rates. Using the given set of data order of the reaction and rate…

Q: Which one alkene will exhibit cis-trans isomerism? B OC OA A u B D

A: Cis trans isomerism needs both different groups on either side of the double bond.If both groups…

Q: a three step process is required in order to determine the concentration of NO3- in a basic…

A: A) Balanced equations for each process:1) Zinc metal reduces Nitrate ions into ammonia in basic…

Q: How many atmospheres of pressure are there in 836 mmHg?

A: The relation between the pressure in atmosphere(atm) and mmHg is 1 atm equals to 760 mmHg

Q: Calculate the pH at 25 °C of a 0.60M solution of anilinium chloride (C,H, NH,CI). Note that aniline…

A: Concentration of anilinium chloride (C6H5NH3Cl) = C = 0.60 MpKb of aniline (C6H5NH2) = 4.87aniline…

Q: Problem: Describe the preparation of 500.0 mL of 0.1 M Carbonate buffer at pH = 10.0. You have a 2 M…

A: Total concentration of carbonate buffer = 0.1 MpH of buffer= 10.0 Volume of buffer = 500mL=…

Q: If the value of K, for HCN is 4.9 x 10-10 at 25 °C, calculate the equilibrium constant for: CN (aq)…

Q: Suppose a 250. ml. flask is filled with 0.70 mol of CO, 1.6 mol of CO₂ and 0.40 mol of H₂. The…

A: A reaction is said to at equilibrium if the forward reaction rate is equal to the rate of backward…

Q: C2H5Br + OH– → C2H5OH + Br– Which is true if the rate law Rate =k[C2H5Br] [OH–] Which is…

A: To solve this problem we have to give the answer of true and false

Q: 2. Boyles law V= 100 V÷15 P=30

A: Boyle's Law states that the pressure exerted by a gas is inversely proportional to the volume it…

Q: Devise a synthetic sequence for the reaction using the list of reagents available. Select the best…

A: An alkyne is prepared from an alkyl dihalide (either geminal or vicinal) using two equivalents of…

Q: 5. Element belongs to IIIA with the lowest abundance in the earth's crusts. 6. The element used in…

A: 5). Thallium (Tl), which is in Group IIIA (Group 13) of the periodic table, is the element with the…

Q: Starting with an appropriate alkyl halide and base, outline syntheses that would yield each of the…

A: In this question, we will synthesized the these given alkenes products from the starting material (…

Q: Br HN

Q: explain why the atomic radii of Nb is greater than that of V, but the radius of Ta is NOT greater…

A: The atomic radii of elements are determined by several factors, including the number of electron…

Q: Derive the Henderson- Hasselbalch equation for the dissociation of a weak base, B, in terms of pOH…

A: The Henderson-Hasselbalch equation connects a solution's pH or pOH to the pKa or pKb of a weak acid…

Q: Suppose ZnS(s) is saturated with 0.04 M K2S (K2S completely dissolves and ZnS has limited…

A: Solubility of a solute is defined as its ability to form solution with solvent. It is the maximum…

Q: One of the many nuclear fission reactions 235U can undergo is:23592U+10n→8934Rb+14458Ce+310nThe…

A: Total mass of the reactants = 236.0526 amutotal mass of the products = 235.8765 amuSo, mass…

Q: The volume of a single barium atom is 4.29 x 10 μL cm³. What is the volume of a barium atom in…

A: We know that the relationship between cubic centimeter (cm3) and microliter(µL) is :1 cm3 = 1000 µL

Q: (19) НО (20) с 0 ОН OCH 3 1. 2. H3O+ CI Pyridine ОН одо

A: In the first reaction, alcohol is given. As a reagent pyridine base is given.The given alcohol will…

Q: I got -1366.7 but I don't think that's right.

A: The standard enthalpy of a reaction is given by:It is the difference between the sum of standard…

Q: atom using 20 (spatial) basis functions, how many virtual orbitals are determined?

A: In a Hartree-Fock SCF calculation, the total number of orbitals, including both occupied and virtual…

Q: CI -ОН ТОН

Q: O Macmillan Learning A portion of the polymer polystyrene is shown. H C-C- Ο Η H H HICIH | H H H H H…

A: Polystyrene is a polymer composed of repeating units linked together to form a long chain.

Q: The following questions are for a titration of a 20.0mL sample of a 0.500 M monoprotic weak a with…

A: Titration of a monoprotic acid with NaOH.Concentration of acid=0.5MpKa=6.4Concentration of…

Q: tion 7 of 20 > Select the best description of the relationship between the pair of compounds. H H.…

A: Cis-trans isomer are stereo isomers having the same molecular formula but differ in the orientation…

Q: what could you label the arrow (shown in green) with to get from reactants to products in the…

A: A bimolecular nucleophilic substitution reaction proceeds in one step in which the bond formation by…

Q: In the box below give the Newman projection of the most stable conformer of the molecule shown below…

A: This problem is based on General Organic Chemistry. Here we have to convert the flying wedge…

Q: 42. All the A) isotopic species(molecules and ions) have the same bond order. B) isobaric C)…

A: The species having same atomic number but different mass number are called isotopes.Different…

Q: For the substitution reaction, draw what is missing from the green box. please explain step by step…

A: According to Bronsted-Lowry theory, an acid-base reaction shows the exchange of protons between two…

Q: < Question 4 of 32 If 25.0 g of NH3 and 50.5 g of O₂ react in the following reaction, what is the…

Q: A waterway contains 11.0 milligrams (mg) of an impurity per gallon of water. How many micrograms…

A: To solve this problem we have to do the unit conversion.

Q: 40. For the system shown here: HOBr+ OHH₂O+OBr Bronsted would classify the base species as: A) OH…

A: Two questions based on introduction to chemistry. One question is about acid-base concept and the…

Q: How many o and л bonds are in this molecule? املتر H H H number of o bonds: O C-H number of bonds:

A: 1 single bond = 1 sigma bond1 double bond = 1 sigma bond and 1 pi bond1 triple bond = 1 sigma and 2…

Q: Identify the correct IUPAC name for each compound shown below. OA) 2-bromo-4-ethyl-3-sec-butylhexane…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: What is the mass in grams of a single atom of Sn? x 10 g Enter your answer in scientific notation.

A: Atom of Sn = 1Mass of single (or 1 atom) of Sn = ?

Q: Answer the following questions using the diagram shown below. Free Energy Reactants Reaction…

A: A question based on second law of thermodynamics. A diagram showing reaction coordinate is given…

Q: When ethanal is reacted with the Grignard reagent ethylmagnesium bromide then washed with H3O*, the…

A: The reaction between ethanal (also known as acetaldehyde, CH3CHO) and ethyl magnesium bromide…

Q: What is the significance of the LUMO (Lowest Unoccupied Molecular Orbital) in organic chemistry, and…

A: The LUMO, or Lowest Unoccupied Molecular Orbital, plays a crucial role in understanding chemical…

Q: Uranium is radioactive and decays into lead. This process can be used to date rocks. A piece of…

A: Given that Amount of Uranium in the rock = 3.8 x 10-3 g Amount of lead in the rock = 2.4 x 10-5 g…

Q: A certain metal M forms a soluble sulfate salt M₂(SO4)3. Suppose the left half cell of a galvanic…

A: Concentration of left half cell = 4.50 M Concentration of right half cell Temperature = 40oC =…

Q: Select the correct IUPAC name for the following compound.

A: The general IUPAC name for compound having carbon carbon triple bond is alkyne. The prefix for --NO2…

Q: 26. Which is the major product expected for the reaction shown ? A) I B) II C) Equal amounts of I…

A: 1. During E1 elimination greater substituted alkene is formed as major product2. Degrees of…

Q: Complete the valence molecular-orbital diagram for oxygen, O₂. 2p 2s 2p 2p * 028 J* 2p J2P.. 2p 2s…

A: Complete molecular orbital diagram (MOT) for =?

Q: ● Fuel Evaluating Two Liquid Fuels (Lesson 6) • Analyze the information below. Explain how your…

A: Answer-6Calorific value is defined as the value of energy that gets released when 1 gram of the fuel…

Concept explainers

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.

Question

Pls help ASAP on both questions.

5. What is the molar mass of Ca3(PO4)2?
A) 87.05 g/mol
B) 215.20g/mol
C) 309.97 g/mol
D) 430.39 g/mol
6. The average of the total mass of all an element's isotopes is called:
A) the isotopic abundance
B) the weighted average
C) the average molar mass
D) the average atomic mass

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Introduction

VIEW

Step 2: Explanation of 5

VIEW

Step 3: Explanation of 6

VIEW

Solution

VIEW

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

The element europium exists in nature as two isotopes: 151Eu has a mass of 150.9196 u and 153Eu has a mass of 152.9209 u. The average atomic mass of europium is 151.96 u. Calculate the relative abundance of the two europium isotopes.
Neon has three stable isotopes, one with a small abundance. What are the abundances of the other two isotopes? 20Ne, mass = 19.992435 u; percent abundance = ? 21Ne mass = 20.993843 u; percent abundance = 027% 22Ne mass = 21.991383 u: percent abundance = ?
Natural 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.
A cube of sodium has length 1.25 in. How many atoms are in that cube? (Note: dNa=0.968 g/cm3.)
The average atomic masses of some elements may vary, depending upon the sources of their ores. Naturally occurring boron consists of two isotopes with accurately known masses ( 10B, 10.0129 amu and 11B, 11.0931 amu). The actual atomic mass of boron can vary from 10.807 to 10.8 19, depending on whether the mineral source is from Turkey or the United States. Calculate the percent abundances leading to the two values of the average atomic masses of boron from these two countries.
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?
Polystyrene 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?
The stable isotopes of iron arc 54Fe, 56Fe, 57Fe, and 58Fe. The mass spectrum of iron looks like the following: Use the data on the mass spectrum to estimate the average atomic mass of iron, and compare it to the value given in the table inside the front cover of this book
Consider the following data for three binary compounds of hydrogen and nitrogen: %H (by Mass) %N (by Mass) I 17.75 82.25 II 12.58 87.42 III 2.34 97.66 When 1.00 L of each gaseous compound is decomposed to its elements, the following volumes of H2(g) and N2(g) are obtained: H2(L) N2(L) I 1.50 0.50 II 2.00 1.00 III 0.50 1.50 Use these data to determine the molecular formulas of compounds I, II, and III and to determine the relative values for the atomic masses of hydrogen and nitrogen.
Reference Section 5-2 to find the atomic masses of 12C and 13C, the relative abundance of 12C and 13C in natural carbon, and the average mass (in u) of a carbon atom. If you had a sample of natural carbon containing exactly 10,000 atoms, determine the number of 12C and 13C atoms present. What would be the average mass (in u) and the total mass (in u) of the carbon atoms in this 10,000-atom sample? If you had a sample of natural carbon containing 6.0221 1023 atoms, determine the number of 12C and 13C atoms present What would be the average mass (in u) and the total mass (in u) of this 6.0221 1023 atom sample? Given that 1 g = 6.0221 1023 u, what is the total mass of I mole of natural carbon in units of grams?
When a sample of phosphorus burns in air, the compound P4O10 forms. One experiment showed that 0.744 g of phosphorus formed 1.704 g of P4O10. Use this information to determine the ratio of the atomic weights of phosphorus and oxygen (mass P/mass O). If the atomic weight of oxygen is assumed to be 16.000, calculate the atomic weight of phosphorus.