1. Calculate the experimental density of a salt solution and the percent error (same as relative error percent) using some or all the data given below. solubility of NaCl salt in water: 0.357 g/mL mass of empty graduated cylinder: 25.19g mass of graduated cylinder + salt solution: 30.47g total volume of salt solution: 4.98 mL true density of salt solution: 1.07 g/mL

Q: oven cleaner, with [H3O*] = 1.0 × 10-12 M Express your answer using two significant figures. ?…

A: We know that   [H3O+] [OH-] = 10-14

Q: Identify whether the following are examples of systematic or random error or are mistakes: a. Using…

A: The random error causes one measurement to differ slightly from the next. It comes from…

Q: Determine the percentage error and the concentration of the prepared NaOH given the following data.…

A: Answer: This is the question based on acid-base titration where with the of KHP data we have to find…

Q: Convert 563 cm/s to units of meters per minute. Show the unit analysis by dragging the conversion…

A: Given, 563 cm/s  To convert it into m/min we must know conversion factors.

Q: 5. Calculate average, standard deviation, percent error, and RSD for each data set. Round the…

A: Rounded average = (20.0145 + 20.0056 + 20.0256 + 20.0114)/4 = 20.014275 = 20.01 ml Mean (a) = 20.01…

Q: PERCENTAGE ERROR Name Percentage error is a way for scientists to express how far off a laboratory…

A: The percentage error is calculated as

Q: n. is the total mass of solid recovered? g is the percent composition of naphthalene in the initial…

A: A) 1.661gm B)21.06% C)15.73%

Q: Determine the percentage error and the concentration of the prepared NAOH given the following data.…

A: Given: NNaOH true = 0.045 N And the experiment data is,

Q: 1. 15.0 g of Fe and 25.0 g of sand are added to 250.0 g of water. a. Determine the percent mas of…

A: Following is a type of heterogeneous mixture. Particles in this kind of mixture are not combined…

Q: (a) For use in an iodine titration, you prepare a solution from 0.222 2 (+0.000 2) g of KIO3 [FM…

A: The relative uncertainity in the weight and formula mass of KIO3 can be calculated as follows:

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: Which is an example of an indeterminate error? Wrong dilution of sample solution Overshooting…

A: Indeterminate errors are also called accidental errors or random errors which are beyond the scope…

Q: Determine the percentage error and the concentration of the prepared NaOH given the following data.…

A: Given data - NNaOHtrue = 0.045N Weight of KHP = 0.2503g For trial -1Vf NaOH= 25mlVi NaOH = 0mlFor…

Q: If the manufacturer of the vinegar used in the experiment stated that the vinegar contained 5.0%…

A: Given : % CH3COOH in vinegar determined experimentally = 4.8 % And % CH3COOH in vinegar…

Q: The quality control pharmacist is testing for uniformity of tablet diameter set at 12.20 mm. These…

A:

Q: Explain the difference between random error and systematic error.

A: A mistaken result or false result obtained in an experiment or study is termed as error. Error is…

Q: A 5.00 (10.01) mL. Class A transfer pipet is used to transfer 5.00 ml. of a 0.259 (+0.003) M Cu²+…

A:

Q: Two laboratory stafftitrated a 50.00 mL of hydrochloric acid with an unknown concentration with a…

A:

Q: Eight replicate measurements were made on a test solution producing the following results for the…

A:

Q: 19. What is the precision in milliliter (mL) of the volumetric instrument below? SO 4788 50:2ml RAND…

A: It is 50 ml measuring cylinder. There are 4 lines in between every 10ml  gap.

Q: A 4.00 (+0.01) mL Class A transfer pipet is used to transfer 4.00 mL of a 0.328 (+0.005) M Cu2+…

A:

Q: A 5.00 (±0.01) mL Class A transfer pipet is used to transfer 5.00 mL of a 0.262 (±0.003) M Cu²+…

A: If the amount of solute is very low when compared with the total amount of the solution, it is the…

Q: .c. The relative deviation (d,) of a measurement or experimental data is the deviation divided by…

A: #(c): The values obtained for percent copper(% Cu) are: 17.34%, 17.33%, 17.28%, 17.29%, 17.36%. The…

Q: The following prompt will be used to answer the first six questions. An experiment was performed to…

A: Given :

Q: A standard sample of pooled human blood serum contains 42.0 g of albumin per liter.Laboratory X…

A: Precision is the reproducibility of measurements where accuracy is the closeness of measured value…

Q: uncertainty in the density

A:

Q: A method of analysis yields weights for gold that are low by 0.3mg. Calculate the % relative  error…

A: We need to determine the percent relative error.

Q: What are the similarities in random error and systematic error? In analytical method and graphical…

A: Answer - Random error - Random error is a chance difference between the observed and true values of…

Q: Weight of coin 1 (g) 11.4286 Weight of coin 2 (g) 11.4633 Weight of coin 3 (g)…

A: Solution -

Q: Determine the percentage error and the concentration of the prepared NaOH given the following data:…

A: To determine the percentage error and the concentration of prepared NaOH

Q: Water contents in oil was measured 4 times by each of two methods with the following results: Method…

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

Q: Question 4 A and B

A: The average density can be calculated using the following data by adding the values of the given…

Q: A 4.00 (40.01) mL Class A transfer pipet is used to transfer 4.00 mL of a 0.289 (+0.005) M Cu+ stock…

A: Given that Initial volume of Cu2+ = 4.00 (±0.01) mL Initial molarity 0f Cu2+ = 0.289 (±0.005) M…

Q: A method of analysis yields masses of gold that are lower by 0.40 mg. Calculate the percent relative…

A: The percentage relative error is percentage discrepancy in finding out the exact value of a…

Q: A student determines the concentration of an unknown sample using two different methods. Each method…

A: Formation of comparison table for comparing the given data of both the methods: Observations…

Q: 1. A calibration weight with a known mass of 25.000 g was weighed on two different balances with the…

A: Mean = sum of all values divided by number of values.  Percentage error = (|actual value - expected…

Q: llowing calculations. Round each result so that it contains only significant digits. The mbers in…

A: Solution -

Q: 0.2 0.5×10-4 1x10-4 1.5x10-4 2x10-4 [Fe(SCN2+)]equ, (M) y = 4.26442 × 103 x + 0.0202852 R2 =…

A:

Q: The scatter of replicate measurements may be expressed by: 1. OAccuracy 2. OStandard deviation 3. O…

A: Replicate measurement means same experiment is repeated multiple times. Now scatter data means we…

Q: 1. Research on the limitation of accuracy of the following instruments: • analytical balance •…

A:

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: over a course of multiple trials a student measures the density of methanol to be 0.707 g/mL, 0.799…

A: Average density is the mean of all the densities i.e. ( sum of all three densities / 3 )  .…

Q: Compare the value you calculated with the actual value (-601.8 kJ/mol). Show your determination of…

A: In a reaction, for the reactant to convert to product, some amount of heat is transferred into or…

Q: 2. Quantitative analysis student Analytical analyzed an ore sample for its lead content and obtained…

A: Given, Experimental obtained mean value = 4.75 % True value = 4.50 %

Q: 9. The concentration of a solution (in ppb) was measured several times, resulting in the following…

A: Given : Concentration in ppb 7.45 8.49 6.91 7.32 The Accepted value for the…

Q: Using the following mass standard data, calculate the Rx value. mass of mass of area of area of…

A: Answer - Rx value - It is defined as the ratio of the distance travelled by the compound at its…

Q: Compute for the following: 1. Absolute error of: | a. b. 2. Percent Relative error of each analyst:…

A:

Q: 1) Report the results of this calculation along with both the percent relative and absolute…

A:

Q: c. The relative deviation (d,) of a measurement or experimental data is the deviation divided by the…

A: Given that, xi=17.34%,17.33%,17.28%,17.29%,17.36%  Calculate relative deviation of 17.29%Cu(in ppt)…

Q: Quantitative analysis student Jon analyzed an ore sample for its lead content and obtained a mean of…

A: Given: obtained value- 4.75% certified value- 4.50% To find:  (a) percent error (b) percent accuracy…