Ql) which of the following elements is casily determined by flame atomnie emission(A) Pb(B) Fe(C) Li(D) HQ2) How many grams of K2SO. need to prepare 750 ml of 500ppm K. (At. mass K39g/mol. M.MK2SO. =174g/mol)(A) 0.837g(B) 0.279g(C)1.49g(D) 0.558gQ3) The molarities of ammonia solution. (M.M-17g/mol) that contains 14% ammoniaby weight. and density of solution is 0.90 g/ml(A) 14.82 M(B) 7.41 M(C) 4.71M(D) 10.93 MQ4) In the experiment (Determination of Pb 2 by atomic absorption).The source ofradiation used isA) hallo cathode lamp(B) xenon lamp(C) Da-lamp(D)tungsten lampQ5) The main goal of using chromatography to separate mixtures as(A) Efficient separation and strong signal(B) Strong signal and sharp peaksCjEfficient separation and minimum time(D) Strong signal and minimum timeQ6) To improve separation on GC(ANGradient elution(BHigh flow rate(cITemperature programmingIDIChange the detector071 Mixture of Co-EDTA and NI-EDTA complexes has an absorbance of 0.260,whenmeasured in 1.0 cm cell at 380nm. The concentration of Nickel in this mixture,if it isknown that the concentration of Cobalt is 0,0143M (e are 0.0321 and 12.875 forCo-EDTA und Ni-EDTA respectively)Ajo.020M(B) 0.0120M(C) 3.1 1M(D) 0.711M

Answered: Image /qna-images/answer/9a178831-db9d-4af7-8776-de2639da9dbc.jpg

Answered: Ql) which of the following elements is…

Science

Chemistry

Ql) which of the following elements is easily determined by flame atomnie emission (A) Pb (B) Fe (C) Li (D) H

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Related questions

Q: (a) What is spectroscopy? (b) Discuss how spectroscopy was useful to the development of early atomic…

Q: Assign reason to the following :(i) Noble gases have large positive values of electron gain…

A: Given statements, (i) Noble gases have large positive values of electron gain enthalpy.(ii) Helium…

Q: (a) Calculate the radius of a Vanadium atom, given that V has a BCC crystal structure, a density of…

A: Question 1:It is given that density of Vanadium atom, that has BCC crystal structure, is 5.96…

Q: A magnesium-24 ion has a positive charge that is double the charge of a proton, and a mass of 3.98 ✕…

Q: Use the noble-gas notation and write the ground-state electronic configurations of the following…

A: The electronic configuration are as follows:

Q: Question A11 (a) Write the full electronic configuration of Cu, using s,p,d,f notation. (b) Complete…

Q: For each of the following, give the most specific classification according to type of matter:…

Q: 3t t

A: The given redox reaction is: Mn2+aq+BiO3-aq→Bi3+aq+MnO4-aq

Q: Which one has the largest atomic radius?

A: Atomic radius is the distance from the centre of nucleus to the outermost shell of an atom. In a…

Q: The electron in the hydrogen atom (in its ground state) orbits the nucleus at a distance of 0.5292…

Q: Rank the following in order of increasingradius:(a) O²⁻, F⁻, Na⁺(b) S²⁻, P³⁻, Cl⁻

A: In this question, we are given isoelectronic species and we will compare the radii of each of them…

Q: Write the electron configuration for each of the following ions.

A: Given : ions Tip : step-1 know the atomic number. Step- if cation minus electron equal to…

Q: (a) Write the electronic configuration of Cu2+ (Atomic No of Cu=29) (b) Explain Cr has the…

A: (a) The electronic configuration of Cu2+ (Atomic No of Cu=29) Copper has 29 electrons filled in…

Q: For each of the following, give the most specific classification according to type of matter:…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: Starting with the previous noble gas, write the condensed electron configurations of the following…

Q: Draw a partial (valence-level) orbital diagram, and write the condensed ground-state electron…

A: a.

Q: On the basis of periodic trends, determine which element in each pair has the higher first…

A: Since we answer only up to 3 sub-parts, we'll answer the first three. Please resubmit the question…

Q: Electronegativity of an element is the average of its ionisation energy and electron affinity…

A: Solution Linus Pauling was the first man of science to explain the phenomena of inclination. the…

Q: a ) Eva l u a te t h e expre s s i o n s 2 x 1, 2 x (1 + 3),2 x(1 + 3 + 5), and 2 x (1 + 3 + 5 + 7).…

A: In the expression, the total number of valence electron is calculated in which 2 is the number of…

Q: Which of the following ions has the smallest size? (a) Cl- (b) F- (c) Al3+ (d) Na+

A: Since,As we move from left to right in a period then size decreases .But when we move from top to…

Q: A neutral atom with an atomic number of five has how many electrons? (A) 1 (B) 5 (C) None (D)…

A: Given that, Neutral atom having atomic no. =5

Q: (A) What is the element that is the only occuring liquid transition metal? (B) what is the Element…

A: Element that is the only occuring liquid transition metal Element that is a transitional metal that…

Q: What are ionization energy for atoms : (a) Sr (b) P (c) Rb

A: a) ionization energy of Sr = 549.5 KJ/mol b) ionization energy of P = 1012 KJ/mol

Q: Valence electrons in an atom of phosphorus are closer to the nucleus than the valence electrons of…

A: we know effective nuclear charge on the electron is given byZeff=Z-S ,where Z= number of proton,S…

Q: A fundamental relationship of electrostatics states that the en-ergy required to separate opposite…

A: To explain the below observations on the basis of electrostatic energy of charges. The IE₂of He is…

Q: 3) For the following species, predict the required characteristics by filling the given 17CI, 17Cl,…

A: Group is the vertical column of the perodic table. Period is the horizontal row of the perodic…

Q: Why are there more electron sub-shellss and orbitals in each shellas you move out form the nucleus…

A: Why are there more electron sub-shells and orbitals in each shell as you move out form the nucleus…

Q: Assume for the following situations that Beer’s law remains linear. For (a) and (b), indicate…

A: According to Lambert's Beer Law. Absorbance is directly proportional to path length and molar…

Q: Which of the following statements about the hydrogen atom is FALSE. (A) The hydrogen atom is…

A: The given statements are, A) Hydrogen atom is neutral B) Hydrogen atom has uniform charge…

Q: Write the charge and full ground-state electron configuration of the monatomic ion most likely to be…

A: The atom of an element is made up of sub-atomic particles. The major sub-atomic particles of an atom…

Q: (a) What is the general relationship between the size of anatom and its first ionization energy? (b)…

A: The long form of periodic table is the arrangement of all elements in the increasing order of their…

Q: Give the ground-state electron configuration for each of the following elements. After each atom is…

A: The number of electron present in an neutral atom is same as the atomic number…

Q: What two pieces of evidence allowed the first calculation of me , the mass of the electron?(a) The…

A: Electron is a subatomic particle having electric charge negative.Electron has high q/m ratio than…

Q: Starting with the previous noble gas, write the condensed electron configurations of the following…

A: The metal ions given are (a) Ni2+ (b) Tl+ (c) Pt2+

Q: Which element would you expect to be more metallic?(a) Ca or Rb(b) Mg or Ra(c) Br or I

A: The metallic character is the tendency of an atom to lose electrons. as we moving from left to right…

Q: 10. Which of the following element has paramagnetic property? (a) Mg (b) P (c) Ne (d) Hg 11. Which…

A: “Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Write the charge and full ground-state electron configuration of the monatomic ion most likely to be…

A: An ion which has only one atom is known as a monoatomic ion. It can be both an anion or a cation…

Concept explainers

Electronic Transitions and Spectroscopy

The term “electronic” connotes electron, and the term “transition” implies transformation. In a molecule, the electrons move from a lower to a higher energy state due to excitation. The two energy states, the ground state and the excited state are the lowest and the highest energy states, respectively. An energy change is observed with this transition, which depicts the various data related to the molecule.

Photoelectron Spectroscopy

Photoelectron spectroscopy (PES) is a part of experimental chemistry. It is a technique used in laboratories that involves projecting intense beams of radiation on a sample element. In response, the element ejects electrons for which the relative energies are measured.

Question

Ql) which of the following elements is casily determined by flame atomnie emission
(A) Pb
(B) Fe
(C) Li
(D) H
Q2) How many grams of K2SO. need to prepare 750 ml of 500ppm K. (At. mass K
39g/mol. M.MK2SO. =174g/mol)
(A) 0.837g
(B) 0.279g
(C)1.49g
(D) 0.558g
Q3) The molarities of ammonia solution. (M.M-17g/mol) that contains 14% ammonia
by weight. and density of solution is 0.90 g/ml
(A) 14.82 M
(B) 7.41 M
(C) 4.71M
(D) 10.93 M
Q4) In the experiment (Determination of Pb 2 by atomic absorption).The source of
radiation used is
A) hallo cathode lamp
(B) xenon lamp
(C) Da-lamp
(D)tungsten lamp
Q5) The main goal of using chromatography to separate mixtures as
(A) Efficient separation and strong signal
(B) Strong signal and sharp peaks
CjEfficient separation and minimum time
(D) Strong signal and minimum time
Q6) To improve separation on GC
(ANGradient elution
(BHigh flow rate
(cITemperature programming
IDIChange the detector
071 Mixture of Co-EDTA and NI-EDTA complexes has an absorbance of 0.260,when
measured in 1.0 cm cell at 380nm. The concentration of Nickel in this mixture,if it is
known that the concentration of Cobalt is 0,0143M (e are 0.0321 and 12.875 for
Co-EDTA und Ni-EDTA respectively)
Ajo.020M
(B) 0.0120M
(C) 3.1 1M
(D) 0.711M

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

VIEW

Step 2

VIEW

Step by step

Solved in 2 steps with 2 images

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

Arrange in order of increasing ionization energy (a) the Group 1A elements Na, Cs, and K(b) the Period 4 elements As, Ca, and Br
4. Write an appropriate set of four quantum numbers (n, l, ml & ms) that could be representative of a valence electron in each of the following atoms or ions. (a) Bi (m (b) Sr (c) Mo (d) Ru2+ (e) Eu
(D) Zr (Z=40) and Hf (Z = 72) 7. Which halogen has the greatest first ionization energy? (A) F (B) Cl (C) Br (D) I 3. The isotope "Zn undergoes what mode of radioactive decay? (A) Alpha emission (C) Gamma emission (B) Beta emission (D) Positron emission 9. What is the bond order of carbon monoxide, CO? (A) 1.5 (B) 2.0 (C) 2.5 (D) 3.0 50. Which statements about the Lewis structure of the
Can u plzz help me with the solution to this question? I have attached the pic.
Provide an answer for Part "d" only.
A mass spectrometer provides information about the: (a) electronic transitions and molecular vibrations occurring within a molecule. (b) elemental composition, molecular weight, and structural features of a molecule. (c) chemical environment and splitting pattern of the protons in a molecule. (d) chemical environment and splitting pattern of the carbons in a molecule. (e) Heat absorbed or liberated during a gas phase reaction. Identify the isotopic ion in the mass spectrum shown below. (a) Peak I IV (b) Peak II Peak III III (d) Peak IV (e) Peak V Identify the molecular or parent ion in the mass spectrum shown below. (а) Рeak I IV (b) Peak II II (c) Peak III III (d) Peak IV (e) Peak V Which of the labeled ions in the mass spectrum is most stable? (a) Peak I (b) Peak II (c) Peak III IV (d) Peak IV V II II (e) Peak V
Give the name, atomic symbol, and group number of the ele-ment with the following Z value, and classify it as a metal, met-alloid, or nonmetal:(a)Z=32 (b)Z=15 (c)Z=2 (d)Z=3 (e)Z=42
Write the full ground-state electron configuration for each:(a) Cl(b) Si(c) Sr
(a) Define the atomic mass unit and estimate the atomic mass unit respective to C12. [4](b) Write the general expression of the atomic mass formula and explain its terms. [2](c) Determine the energy equivalent of the atomic mass unit.
How is the periodic Table arranged? (A) Horizontally ( B) Vertically (C) Atomic Mass. (D) Periods and Groups
10. Identify the elements (two of these are irregular, so pay close attention).(a) 1s22s22p63s23p64s23d104p65s24d5 (b) [Xe]6s24f145d106p5(c) 1s22s22p63s23p64s23d104p65s24d105p66s14f145d10 (d) [Rn]7s25f76d1