Question 23 The effect of a constant error becomes more serious as the size of the quantity measured increases. Co True False

Q: Q1. The colour of silver and gold nanoparticles changes according to the particle's ....... OK

A: The color changes depending on the size/shape of the gold nanoparticles.

Q: A student uses a balance with a stated uncertainty of #0.002 g to weigh a quantity of a reagent by…

A: Empty beaker weight = 40.301 g Beaker + Reagent weight = 40.689 g

Q: New August 3 , 2021. A method of analysis yields masses of gold that are low by 4 mg. Calculate the…

A: The solution is given below -

Q: When a 10 mL graduated cylinder is filled to the 10 mL mark, the mass of the water was measured to…

A:

Q: Scientific_Method_PPT_questions References Mailings Review View Tell me what you want to do..…

A: Given : Scientific method  To find : Steps in scientific method  Solution : Scientific method is a…

Q: Rewrite the number 3.123 56 (+0.167 89%) in the forms (a) number (6absolute uncertainty) and (b)…

A: The given number is 3.12356 (+0.16789%).

Q: A student sets up a paper chromatogram and places a spot of purple food dye on the origin. After…

A:

Q: CHEM 51 Lab 016a Sig. Figs & Conversions 3. Perform the following operations, giving the answer to…

A: #(a): (64.88)*(0.03193)  In multiplication and division, the product should have the number of…

Q: Explain what is meant by each of the following terms:a. errorb. uncertainty

A: Measurements invariably involve errors and uncertainties. It is impossible to perform a chemical…

Q: If the readings are 2 3 4 the average deviation is----- O 5.33 O 3.34 O 2.44 0.66

A: Calculate average deviation of the data, 2,3,4

Q: New February 25, 2020. An analyst (chemist) made a big mistake in calculating mg glucose/L of a…

A: We have to select correct error done be the analyst

Q: Part A The following image represents which kind of matter? O an element a mixture O a compound O…

A: In the figure given we can see that the particles are made by joining 2 spheres  1) 1 white sphere…

Q: what metals make up the silver and black blocks Color Prediction Black Silver Metal Density…

A:

Q: Correct! Now, determine the uncertainty value for the measurement. 10 6.2 ± mL SUBMIT UNCERTAINTY

A: To determine the uncertainty value for measurement. Uncertainty = ( Lowest reading on scale)/(no. of…

Q: A laboratory scale reads 5.4630 g for the mass of a sample during lab. What is the correct way to…

A: A laboratory-scale reads 5.4630 g for the mass of a sample during lab. What is the correct way to…

Q: cube welg pe. Caleu late the densite of a metal 0.4 98 Hg length of 4.21 cm in 3/mL. 1 mL = 1 cm²…

A: Given :  Mass = 0.498 kg  Length = 4.21 cm

Q: calculate the mass of fluorine per gram of iodine in Compound 1.  Express the mass in grams to…

A: Three different compounds contains only iodine and fluorine.In compound    -(1)4.75 g of iodine is…

Q: d. H>SO,(aq) + KОНад) -

A: The answer for number 25 letter d is given below. Kindly post the other question as separate…

Q: Measurements 1. Exercise 3. a. Which 10 measurements shall have uncertainty values based on b.…

A: Accuracy refers to how closely a measurement matches with a correct value. Precision refers to how…

Q: A solid object has a true mass of 91.4132 pounds. A student measured the mass of the object in a…

A: Measured mass is equal to actual mass plus the value of  percentage error of actual mass.

Q: Which of the following statements about the sensitivity of an analytical method is true? O The…

A: Two questions based on tools in analytical chemistry that is to be accomplished.

Q: Which of the following measurements has the highest uncertainty? a. 157. 67 b. 340 c. 190 d.…

A:

Q: The ± relative error in the density of a metal rod is determined to be + 0.02. If the calculated…

A: The error in the density is given as ±0.02. And the density value calculated is 8.6321947.

Q: 320.28 - (6107.5/2.8). Express your answer to the appropriate number of significant digits. [(289.8…

A: Dear student,We are entitled to answer only one question at once. So, your first question is being…

Q: Question 7, Saved Listen Systematic error affects the accuracy of a result.

A: Systematic error

Q: While doing a lab, a student found the density of a g/cm. The accepted value for the density of…

A: According to the question,  Measured density of pure aluminum = 2.85g/cm3 Accepted value for the…

Q: How are systematic errors detected?

A: Systematic method error is a kind of systematic error. It will have a different calculated mean…

Q: A student determined that the density of a sample of tin is 8.00 g/mL, when the actual density of…

A: The approximation error in some data is the discrepancy between an actual value and expected or…

Q: Express 1 dm ^3 as cm^3

A: A unit dm3 stands for cubic decimeter. A unit cm3 stands for cubic centimeter.

Q: 4-The density of water at 4°Cs known to be 1.00 g/ml kim experimentally found the density of water…

A: Given the density of water at 4 degree centigrade is 1.00g/ml. Experimental density of water is…

Q: Which of the following notations is invalid (contains an error)? 107 Pd 46 32 CI 16 81 35 Br- O}H+

A: The answer is B

Q: 8. A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative…

A: Hello. Since your question has multiple sub-parts, we will solve the first three sub-parts for you.…

Q: zo determined the density of a sample of aluminum.  For his sample, he found the volume was 0.350…

A: To calculate the percentage error in calculation.

Q: The accuracy of an experiment is best described by O the % deviation O the average value O the %…

A:

Q: Which of the following sentence is correct: O Random errors cause outliers O Random error affects…

A: Errors are the deviation from the correct value.  Errors can be of different types, like random…

Q: 8. For this question two statements are given- one labeled Assertion (A) and the other labelled…

A: Suspension :     It is type of heterogeneous mixture in which some of the particles settle down when…

Q: Question 19 Posision's ration is the proportional decrease in a lateral measurement to the…

A: Please find your solution below : Poisson's ratio is a ratio which is defined as the ratio of change…

Q: Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35…

A: The total number of Xenon atoms present in the image is 35.The molar mass of Xenon is 131.29 amu.The…

Q: find absolute and relative standard deviation of this data.

A: Absolute standard deviation is the measure of the deviation of each data point from the mean value.…

Q: Identify the ketones responsible for the mass spectra below.

A:

Q: 22. Convert th

A:

Q: A method of analysis yields masses of gold that are low by 0.4 mg. Calculate the percent relative…

A: Percent relative error is calculated as follows; Er=xf-xixi×100% Here xi is the actual mass of the…

Q: Atomic absorption analysis for copper concentration of aircraft engine oil gave a value of 8.53 mg…

A: GIVEN Copper concentration of aircraft = 8.53 mg Cu/mL standard deviation (s) = 0.22 mg Confidence…

Q: 58. Apply Graph mass versus volume for the data given in the table wh slope of the line? Volume…

A: The slope of a plot is =dYdX =Change in YChange in X =Y2 - Y1X2-X1

Q: In lab you determine the mass of a weigh boat is 3.58 g. Turns out it's real mass is 3.70 g. Your…

A: Error is defined as the absolute difference of observed value from true value. It is inversely…

Q: - 23 An iron atom has a mass of 9.27 × 10 g and a cooking pot has a mass of 0.500 kg. Use this…

A: Given : mass of 1 atom of iron = 9.27 X 10-23 g Since 1 mole of any species contains 6.022 X 1023…

Q: Perform the following calculations and round your answer correctly: a. 345 + 22.5 =  b. 22.5 -…

A: These are simple mathematical operations  Addition and subtraction respectively.  Which can be…

Q: Which of the two values is accurate 8.19 or 8.22.10?

A:

Q: An error due to some peculiarity or bias of the observer (A Instrument Error (B) Personal Error C)…

A: