QUESTION 4 For the following expressions, how many significant figures will the answers have: a) (0.0035)(0.0035) 4 v b) 0.353*1.00001 + 32.03 9 v c) 42.000 0.0035I 6 v d) (3.5500E-2)(9.5E-9) + 25.003 e) 63.5 + 76.5 2 v f) 35.400 - 35.3 1 v g) (2300.0 + 22.0002)/(12.5 - 9.2)

QUESTION 4 For the following expressions, how many significant figures will the answers have: a) (0.0035)(0.0035) 4 v b) 0.353*1.00001 + 32.03 9 v c) 42.000 0.0035I 6 v d) (3.5500E-2)(9.5E-9) + 25.003 e) 63.5 + 76.5 2 v f) 35.400 - 35.3 1 v g) (2300.0 + 22.0002)/(12.5 - 9.2)

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter6: Random Errors In Chemical Analysis

Section: Chapter Questions

Problem 6.8QAP

See similar textbooks

Related questions

Q: In the process of making biofuel from corn, the corn is ground, mixed with water, and then enzymes…

A: Chemical change = Chemical change occur when subatance combine with other substance to form new…

Q: A chemist wants to perform a reaction using the reagent below, which can act as a Bronsted-Lowry…

A: #1: A Bronsted-Lowry acid is a species that donates a proton(H+), and a Bronsted-Lowry base is a…

Q: Assist with both a and b.

A: Oxidation : Loss of electron with increase in oxidation state. Reduction : Gain of electron with…

Q: 43-46 Consider the time and concentration data for: 2 NO2(g) →2 NO(g) + O2(g). Time, s [NO2] 43 a.…

A: Since you have posted a question with multiple questions (44-46), we will solve first question for…

Q: g. The system's entropy change for an adiabatic process in a closed system must be zero. h.…

A: Here we have to predict whether the following statements are true or false.

Q: Do a buffer calculation using the data below. a) Prepare 100 ml of buffer at pH 4.2. You are…

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

Q: What is the correct name for the following molecule: CH₂ H₂C CH₂ pentene butane CH₂ O 1-methylbutane…

A: IUPAC nomenclature: The basic skeleton of iupac nomenclature is " prefix + parent carbon chain/ring…

Q: A gas mixture contains 1.25 g N2 and 0.85 g O2 in a 1.55 L con- tainer at 18 °C. Calculate the mole…

Q: Preventing iron auto parts from corroding or rusting can be accomplished by electroplating the iron…

A: This question is based on electroplating of chromium on iron articles.And we are asked to write the…

Q: Learning Task 3 dentify the buffer systems below: 1. KH2PO4/ H3PO4 2. NaCIO4 /HCIO4 3. KF /HF 4.…

A: The question is based on the concept of buffer solution. A buffer is a solution which resist any…

Q: 60. Determine the charge of the cation in the ionic compounds a. Cu20 b. MnSO4

A: • For an isolated molecules , the oxidation number tells about the charge of any atom in molecules.…

Q: Use the observations about each chemical reaction in the table below to decide the sign (positive or…

A: A positive change in entropy (ΔS > 0) generally favors spontaneity, while a negative change in…

Q: In the first stage of the industrial production of nitric acid, ammonia reacts at high temperature…

A: Rxn : 4 NH3(g) + 5O2(g) ---> 4 NO(g) + 6 H₂O(g)

Q: Part A 2.1 L of a 5.0 M HCl solution is added to water so that the final volume is 5.5L. Express…

Q: A solution is prepared by dissolving 99.6 grams of sodium nitrate in 789 grams of water. Paired…

Q: 3) Phosphorous burns in air to produce a phosphorous oxide in the following reaction: 4P + 50, a PO…

A: The balanced reaction taking place is given as, => 4 P + 5 O2 -------> P4O10

Q: 1. Draw the Lewis Dot structures for (A) BrCl2 and (B) CIF5. Once this exercise is complete... (a)…

A: Hybridization is the theoretical concept of mixing of two atomic orbitals of the same atom to form…

Q: 4. Calculate how many moles of CO₂ could theoretically be produced when 10 g of glucose reacts. Show…

A: 4. Given that, the mass of glucose is 10 g. We have to calculate the theoretical number of moles of…

Q: Use the chemical structure of the theobromine molecule below to answer the following questions: H H…

A: All detailed explanation is given picture:

Q: Calculate the pH of a 10 M C5H5NHCI (aq) (pyridine chloride salt of pyridine) at 25 °C. The base…

A: Concentration of C5H5NHCl= 10M Kb=1.7×10^-9

Q: 20. AIH3 C2H4 22. Cu

A: Here the last 3 subpart is:

Q: CO@ + H2O@) → CO2@) + H2G) () After the carbon dioxide gas is removed by dissolving it in water, the…

Q: I need help with A, B, and E

Q: learning Task 4 For the following reactions, write how each of the changes will affect the indicated…

A: The given chemical reaction is, H2g+Br2g→2HBrg ∆H=-103.7 kJ The expression for equilibrium…

Q: 17. In the presence of an acid, water acts as a proton donor, proton acceptor A. in the presence of…

Q: d. ... x Br KOt-Bu 50°C CH3NH₂ undergoing E2 undergoing SN2

A: Note: It is specifically mentioned to solve c and d only. Tertiary alkyl halides undergo SN1 and E1…

Q: 4) Aluminum chips are sometimes added to sodium hydroxide-based drain cleaners because they react to…

A: We have to balance the given reaction

Q: H2O -286 KJ 2. Prove that the enthalpy change of formation is equal to the total change of enthalpy…

A: Given, Enthalpy of formation of (ΔHf) of CO2 = -393 KJ Enthalpy of formation of (ΔHf) of H2O =…

Q: Fé b) Which compound is more polar? Ferrocene or Acetyl Ferrocene ur answer: 2. What is the…

A: The question is based on column chromatography. it is a separation technique used in lab to separate…

Q: Sketch the following planes and directions within a cubic unit cell [213]

Q: While ethanol (CH,CH,OH) is produced naturally by fermentation, e.g. in beer- and wine-making,…

A: Given, Volume of the container = 75 L Initial moles of ethylene = 10 mole Initial moles of water…

Q: Can I get help on this section please ?

A: In NMR number of signals are equal to number of chemically non-equivalent protons

Q: learning Task 3 Answer the following problem. A 1.00 mole sample of NOCI was placed in a 2.00L…

A: According to our guidelines we will solve only 1 question. Please resubmit a new question specifying…

Q: I'm stuck on part d, e, f, and g. Please help

A: Hey, since there are multiple sub part questions requested, we will answer first three questions.

Q: 25.0 mL of a 7.00 M HCl solution Express your answer with the appropriate units. HA ? Value Mass =…

A: Part A Volume of NaOH solution = 3.00L Molarity of NaOH solution = 4.00M Determine the moles of…

Concept explainers

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.

Question

Help with D,E,F, and G

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

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

The percentage of an additive in gasoline was measured six times with the following results: 0.13; 0.12; 0.16; 0.17; 0.20 and 0.11%. What is the 99% confidence interval for the additive percentage?
Qs/ A 0.2121-g sample of pure Na,C,0, (134.00 g/mol) was t ed with 43.31 mL of KMnO;. What is the normality of the KMnO, solution? The chemical reac- tion is 2MnOj; + 5C,0i + 16H* — 2Mn?* + 10CO, + 8H,O
1. [15] Atmospheric pressure (P) decreases with increasing altitude (h) based on the following exponential function (with e as the base): P = Pº 1 exp Mgh RT where Pº=1 atm at h=0 (sea level) and T'is the average temperature of the atmosphere, M the molar mass of air (29 g mol-¹), and g the standard gravity. Please estimate the boiling point of water at atmospheric temperature T=293.2 K, and height h=3000 m. The heat of vaporization of water at 293.2 K is 44.22 kJ mol-
Photosynthesis in plants converts carbon dioxide and water into glucose (C6H1206) and oxygen according to the equation below. 6CO2 (g) + 6H20a → C6H1206 (s) + 602 (g) Substance СО2 (8) H20M C6H1206 (s) 02 (g) kJ AH°; (mol -393.5 -285.8 -1273.3 J H° mol. k 213.6 69.9 209.2 205.0 Calculate the AHº, ASº, and AGº. Is the reaction spontaneous at standard conditions?
9:08 PM ☹ & = ikf MB² = 5.12 °C/m 19²2- (-130%) = AT £ 1Jf=18492 ug°c = (5.12 L/m) n = 3.611 ●●● 25 Question 9 of 14 | g 1 3 4 6 7 9 +/- 0 Tap here or pull up for additional resources 8 What mass in grams of NaCl would need to be added to 2051 g of water to increase the boiling temperature of the solution by 1.500 °C? (Kb for water is 0.5100 °C/m) X C 20% 0 Submit x 100
6. Using dimensional analysis, show how 0.082057 Latm mol. K Significant figures note: the last digit on both values has been rounded. NOTE: 1 J = 1 N-m = 1 kg.m², and 1 Pa = 1 N m² is equal to 8.3145 or 1 kg m.s mol - K
In a survey of 1000 large corporations, 250 said that, given a choice between a job candidate who smokes and an equally qualified nonsmoker, the nonsmoker would get the job (USA Today).(a) Let p represent the proportion of all corporations preferring a nonsmoking candidate. Find a point estimate for p.(b) Find a 0.95 confidence interval for p.(c) As a news writer, how would you report the survey results regarding the proportion of corporations that hire the equally qualified nonsmoker? What is the margin of error based on a 95% confidence interval?
None
The contents of similar containers of sulfuric acid are 9.8, 10.2, 10.4, 9.8, 10.0, 10.2, and 9.6 liters. Find a 95% confidence interval for the mean of all such containers, assuming an approximate normal distribution. Use t = 2.447 9.74 10.26 9.74> μ μ> 10.26 O wwxx O xwww 9.74 <μ <-10.26
Gas Pressure Conversions • A given P(atm) takes different column heights (h) of different liquids (p) to balance in a barometer: P(H,0) = p(H,O) gn h(H,0) P(atm) = p(Hg) g, h(Hg) 1 h oc %3D %3D ... Find mm(H,0) that measures 1 atm = 760 mmHg: %3D h(H,O) = h(Hg) x e(Ha= 760 mm(Hg) x 13.5_g/mL = [O,2le0 mm(H,O) %D %3D p(H2O) 1.0 g/mL A barometer with liquid twice as dense as water shows 1 atm as: 0.38 m 1.52 m 5.15 m 20.6 m Convert 3.11 x 10-5 atm into mTorr 1 atm =100 Torr 3.11 x 10-5 atm xloO Torr 1 atm 1 mTorr 10-3 Torr 23.0mTorr (AKA: µ) 1 in(Hg) = 25.t mm(Hg) Pa = 29.92 inHg 80.6 KPa Convert 23.8 inHg into kPa %3D 1 atm = 760 mmHg = (01325 25.4 mm(Hg)x 1 in(Hg) %3D 101325 Pa 760 mmHg 1o Pa 23.8 inHg x x 1 kPa =
What is the result of this expression: 3.62 x (22.3 –20.3) /0.6655=
Part F The third variable (call it v) is v=x1-cx2 + x3, where c is a constant you need to determine so that the equation for v is the SHM equation. Determine v. The solution to the equation for vis v = 2B cos(t + b). Express your answer in terms of some, all, or none of the variables 21, 22, 23, and the appropriate constants. v = ΜΕ ΑΣΦ Submit Request Answer ?