Answered: A primary standard (reagent) has the…

A primary standard (reagent) has the following characteristics except Select one: O a. 99.9% pure Ob. Weighable O c. Low molecular weight O d. Chemically stable e. c+d C+d.

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: 5. Calculate the percent error between the value of AH for reaction 2 and the sum of AH for reaction…

Q: Answer 6, 7 and 13

A: 6--- NH3 7----Ammonia 13---Sn(OH)4

Q: Which of the equations is NOT CORRECT? A B D y2 - gR w? - GM R2 %3D y2 -GM y² _ GM w? -

A: D is not correct

Q: It CHCH3 z)z R or S 1 8omer

A: The conformation given is,

Q: Answer if true or false , if false, put the correct answer 1. Good primary standard needs to have…

A: 1) A good primary standard following criteria: 1) it has a high level of purity and it has low…

Q: QUESTION 5 Which statement justifies the need for a high molecular mass primary standard or reagent?…

A: There are generally two types of standard solution used for analysis purpose- 1- primary standard…

Q: 1. The flame-ionization detector is used in gas chromatography because the eluates cannot be…

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

Q: ~60°C trial ~50°C trial ~40°C trial ~30°C trial ~20°C trial Vol. of HCl used (mL) 19.87 12.93 12.37…

A: The solution of the question is given below:

Q: This is a not graded pre test, I just need the blanks in the BCA table based off the balanced…

A: The balanced chemical equation for combustion of propane C3H8(g) + 5O2(g) --------> 3CO2(g) +…

Q: Mixtures are not separated to their pure components by: Select one: O a. distillation O b.…

A: A mixture is defined as which is made up of two or more pure components. For example: salt and water…

Q: Please help me with tyhis problem and the right sig fig because I got as the molar of the compound…

A: This are some rules of significant figure you should know-

Q: A GC detector that ionizes each components of the sample and the mass is repeatedly scanned during…

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

Q: LOH H Br This content is prot and 1. NaNH2 (excess) 2. CH31 3. Na, NH3 4. 03 5. DMS 1. PBr3 2. Mg 3.…

Q: Find the weight factor of iodide I in, Hg(IO2)

A: The amount of quantity of matter present in the substance is explained by the term mass. It is…

Q: The concentration of NaOH from the best three of your trials. 2. The average concentration of 3 of…

A: Given: Titration KHP (g) Vfinal (mL) Vinitial (mL) Vtotal NaOH(mL) 1 0.7027 34.20 0.0 34.20 2…

Q: HD

A: The step by step conversions are

Q: What is the corrected weight (g) of KHP (Molar mass = 204.22 g/mol) with an actual weight of 0.8026…

A: Given data: Molecular weight (M) = 204.22 g/mol Actual weight (Total weight) = 0.8026 g % of the…

Q: Product characterization: 0.91 g of the crude product 0.77 g of the final product M.p. (crude):…

A: Given: Mass of Crude product = 0.77 g Mass of Final product = 0.91 g

Q: Analysis of a blood sample for inorganic phosphate gives (4.5, 4.20, 3.6, 4.17, 3.88) mg% phosphate.…

Q: The primary standard substance must be less equivalent weight (or molecular Wt. ) False True

A: Primary standard substance are used to standardized the secondary materials or solutions which is…

Q: wAte 0/20s of simitarites fer gfucase sufar Cattae?

A: "Since you have asked multiple questions, we will solve the first question for you ( as per our…

Q: 14. After a thin layer chromatography experiment, spots of J, Kand Lappeared 10.1, 7.0 and 2.7 cm,…

Q: Ksp for this compound? er should be entered with 3 significant figures; do not enter units; give…

A: It is a ACl2 type salt. So, Solubility equilibrium is as ACl2(s) ----> A2+(aq.) + 2Cl-(aq.)…

Q: Molisch Test Reagent’s Composition Observations: Inferences:

Q: PLEASE PROVIDE THE INTERPRETATION OF ALL SAMPLES FOR HELPFUL RATINGS. THANK YOU. *INCLUDE ALL YOUR…

A: In all test tube H2O2 is present. And various materials are introduced in the test tube.

Q: Even though you used different amounts of NaSCN for each test mixture the values of Kc you measured…

A: Equilibrium constant (Kc) for this reaction :…

Q: lo.DL contamer at loo.0°C कनेवाळड कड व् ए०, ०.४००+m H>, १d 0.७५ वम्न् एमडु Oम- The ननान्wwng…

A: Equilibrium constant Kp is equal to partial pressure of products divided by partial pressure of…

Q: TLC - Identity of an Unknown A B C D A = B = C = D= C OH unknown compound

A: Dear student , Since you have not mentioned the specific part to be solved, I believe that you…

Q: Which of the hypothetic equations below is incorrectly balanced: a. 2 X + 3 Y2Z4 → 1 X2 (Z4)3 +…

A: A balanced chemical reaction is that where all elements on reactant side have same composition as…

Q: Peak area proportional to mass or concentration of the individual components of the sample injected.…

A: The area under the peak is a function of that compound's concentration in the sample.

Q: Q3: In a chromatographic analysis, a solution was prepared with 0.0837 M Octane (A) and 0.0666 M…

A: In the given question we have to calculate the concentration of octane in unknown sample.

Q: Molecular weight MW 1. Find the MW of Iron(III) pyrophosphate. (Use whole numbers for each of its…

A: Note: As per company policy we are supposed to attempt first three subparts only. Please repost…

Q: Among the requirements for a substance to be a primary standard is low hygroscopicity. A) True False

A: True. Primary Standard should not absorb moisture from air. A substance that absorb or adsorb water…

Q: calaubte the holume needed p reach the Eguivalemce point uoing Tocnm 1s dota 2) Calaulate the…

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

Q: by 0.05 B. After

A: Given as, Low power= 10W, Withdraw= 0.05β, Time period= 10 minutes.

Q: A 0.53 g sample containing KBr (MW=119) is dissolved in 50 mL of distilled water. Titrating with…

Q: plete balance lne following han ICtion in SOluli CIO: (aq) → CI-(aq) O3- D2+ 3+ 14+ 1 2 3 6. 7 8 D4…

A: The half-reaction is as follows: ClO3-(aq)→Cl-(aq)

Q: Calculate % purity and % yeild. 15mL Tert-Butyl (density= 0.78g/mL) 37mL HCl (density=1.18g/mL)…

A: The number of moles of a substance can be calculated as the ratio of the mass of that substance to…

Q: CHM220 Page 3 он m. CH3 n. HC

Q: Molecular weight (g/mol) Mass (g) density Equivalents Amount required Volume Reagent (mL) (ø/mL)…

A: Hence, 0.0135L or 13.5mL ethanol is needed to prepare 0.33M solution.

Q: Astudent got the following replicate measurements: 7.81, 7.61, 6.46, 7.84, 7.80. Apply Qtest (at 90%…

A: The experimental Q-value is calculated by the formula, Qexp=x2-x1xN-x1 This obtained value of Qexp…

Q: Draw the products of each attached reaction.

A: The products of each attached reaction have to be drawn.

Q: Of A Cis produced? 2 A (aq) -> 3 В (аqg) + C (аq) Select one: a. 2.03 x 10-5 M C/min b. 1.35 x 10-4…

A: The rate of reaction is the speed at which a chemical reaction takes place. It can also defined as…

Q: Identify the compound that gives the mass spectrum and infrared spectrum shown here.

A: EXPLANATION: To calculate the molecular formula of the compound, the following steps to be followed:…

Q: determination c icating the stud a.) Pb+2

A: Answer The given sloppy separation of PbSO4 is determined…

Q: 1. a) calculate % by mass of naphthalene, 3-nitroaniline and benzoic acid in original sample 1. b)…

A: 1)a. The molecular mass of naphthalene = 128.17 gm/mol The molecular mass of 3-nitro aniline =…

Q: The Kb of C6H5NH3* is 3.98x10-10 What is its Ka? Hide answer choices a A 5.02x10^-5 B) 2.51x10^-5 C…

A: The Kb of C6H5NH3+ is 3.98×10-10 .the Ka value calculation is given below.

Q: A calculation is considered accurate if the result is within chemical accuracy. What is chemical…

A: Accuracy :- It means how close the measured value is with actual or correct value of the measurement…

Q: Consider the diagram below to answer questions 5 and 6. R = 0.70 R = 0.55 R; = 0.47 Eluent: EtOAC…

A: Rf= 0.55 correspinding to compound 1. Since more is the polarity more will be the Rf value. Thus…

Q: How much NaAlO2 is required to produce 1.00 kg of Na3AlF6? 6HF(g) + 3NaAlO2(s) --> Na3AlF6(s)…

A: Consider the given balanced equation is as follows; Reaction: 6HF(g) + 3NaAlO2(s) →…

Concept explainers

Spectroanalytical Methods

Spectroanalytical methods measure the wavelength and intensity of radiations that are either emitted or absorbed by a molecular or atomic species. These methods are useful for evaluating the electronic or atomic arrangement of the molecules of a given analyte.

Question

A primary standard (reagent) has the following characteristics except
Select one:
O a. 99.9% pure
O b. Weighable
O c. Low molecular weight
O d. Chemically stable
O e. c+d

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

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

d) (2 pts) BHCI CH3 + H₂C 1. Mix 2. NaOH, H₂O₂ D
Please help with 6. a-c
Startinlg Mzterials CReagents) Br 日-CEC-H C lly Br CHs CHp -> 4. %23
← Curved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. HH H H HO: :O: Select to Add Arrows H neutralizing workun Li → Li O Select to Add Arrows 1 Н HAIGH Al. н 'Н Li HO: :0: Select to Add Arrows Li Ⓒ Li O H Li O I Select to Add Arrows I H HI | I I I Problem 39 of 40 Please select a drawing or reagent from the question area Submit
-NH CH3 m. Common
HNO3 HCI H3CO- -C(CH3)3 ? H2SO4 Fe or Sn HS А) H2N- -C(CH3)3 B) H3CO- -C(CH3)3 H2N D) H2N H3CO- -C(CH3)3 H3CO- -C(CH3)3 O A В
overall aden fn tereactiorabwe! .20 what is te overall aae for tereactrobre! 200 0.00 8.00xl0 1. 0. 1000 200x1o? Trual A +BSAB On 12
What is the product? CALA © B. C OC. D OD. B MeO₂C A. CO₂Me H MeO₂C. ಚಿಕ C. MeO₂C B. MeO₂C. D.
k esc ~ 1. LiAlH4 2. Neutralizing work-up Select to Draw ! F1 F2 < O Q #つ 80 F3 NaCN, HCI Select to Draw $ 000 000 F4 % L F5 Problem 4 c MacBook Air < ( F6 8
4. A -J
O Reagents Available a. CH₂=CHCH₂CI, AICI 3 CH3 b. CH₂Br₂, OH™ C. CH3CH₂COCI, AICI 3 d. H₂, Pt e. NBS, CCI4 f. K* tBuO™ g. CO, HCI, CUCI/AICI3 h. CH3CH₂CH₂COCI, AICI 3 i. BrCH₂CH₂Br, OH- j. CH3CH₂CI, AICI 3 k. RCO3H I. H3O+ Using conditions from the table, show how you would synthesize this compound from catechol (1,2-benzenediol). Select reagents from the table in the order that you wish to use them, i.e. aced; do not include punctuation or spaces. If more than one route exists, choose the shorter one; in no case will a synthesis require more than 5 steps.
1.) 2.) OCH3 3.) b.) 1.) NaOCH3. Cнон (1 equiv) c.) 1.) NaOCH3, CH,OH (1 equiv) 1.) NaOCH, CHОН (1 equiv) Br Br 2.) 2.) 2.) Br 3.) H2SO4, H2O, A 3.) H2SO4, H20, A 3.) H2SO4, H20, A f.) 1.) NaOCH, CHОН (1 equiv) d) 1.) NaOCH3, CH3OH (1 equiv) 1.) NaOCH. CH,Oн (1 equiv) MgBr MgBr 2.) 2.) 2.) MgBr 3.) H2SO4, H20, A 3.) H2SO4, H20, a 3.) H2SO4, H2O, A