1. Complete the following statement: Data that have a large systematic error can still be  a. accurate b. precise c. neither 2. What is the difference between a qualitative and a quantitative measurement?

Q: Lavoisier developed a new theory of combustion that overturned the phlogiston theory. What…

A: Antoine Lavoisier was a French based scientist whose research was consisted of quantitative…

Q: One important observation that supporters of the phlogiston theory had trouble explaining was that…

A: Lavoisier, a French chemist, conducted an experiment in which he decomposed the mercury calx into…

Q: (b) A sampling plan is necessary to ensure that a laboratory sample is truly a representative of the…

A: Sampling plan is a term widely used in research studies that provide an outline on the basis of…

Q: Accuracy and precision are two important factors to consider when taking data measurements and they…

A: Accuracy and precision are two important factors to consider when taking data measurements and they…

Q: scribes her results? a) Her results are precise, but not accurate. b) Her results are accurate, but…

A: If experimental values are close to true value then it is Accurate.  And if experimental values are…

Q: graduated cylinder weighs 35.825 g. When 10 mL of water is measured in it, the weight of the…

A: Given: Weight of the graduated cylinder = 35.825 g. The weight of the graduate and water= 45.835 g…

Q: Please help me solve these problems

A: Here, we are providing answer only for 2nd question. If you need answer for other questions please…

Q: Is it possible for measured data to be precise but inaccurate?

A: Here we have to explainIs it possible for measured data to be precise but inaccurate-

Q: 132. The following statements are all true. (a) Jessica's house is 5 km from the grocery store. (b)…

A: Given: (a) Jessica’s house is 5 km from the grocery store. (b)Jessica’s house is 4.73 km from the…

Q: You record the following in your lab book: a liquid is thick and has a density of 4.58 g/mL. Which…

A: Given data, A liquid is thick and has a density of 4.58 g/mL. Which data is qualitative and…

Q: The standard definition of a quart is equal to 947 mL. Calculate the percent error of a student's…

A: Given is, Measured value= 935 mL True value = 947 mL %error=?

Q: What is the standard practice for significant digits when recording test data? Why are significant…

A: 1. Most standards for science and technology, led by ASTM E29, use the “five-even” rule. Under this…

Q: A systematic error (A can be discovered and corrected. (B Cannot be corrected nor detected arises…

A: The correct option is:

Q: A cylindrical glass tube 20.0 cm in length is filled with acetone. The mass of the acetone to fill…

A: Given that, Cylindrical glass tube, Length (H) = 20.0 cm Radius (R) = ? Mass of acetone (M) = 21.53…

Q: Lavoisier developed a new theory of combustion that over-turned the phlogiston theory. What…

A: Lavoisier developed a new theory of combustion and disproved the phlogiston theory. Lavoisier…

Q: A systematic error A arises from the limitations on the ability to make a physical measurement. B is…

A: To define: Systematic error.

Q: A beaker is marked with 1mL lines for measuring volume. It is then filled with water such that the…

A: When we fill a container with a liquid, it generally forms a lower and an upper meniscus. The…

Q: A student experimentally determines the density of water to be 0.9955 g/mL. The reported density of…

A:

Q: What is the estimated digit? A measurement done with no tools A digit added by the operator beyond…

A: in a measurement, the last digit is called an estimated digit.

Q: Measured values are written to the correct number of significant figures O to match the significant…

A: We will answer the above question by using basic concepts of chemistry.

Q: 16.1 cm2 converted to km2

A:

Q: Five students used the same ruler to measure the length of the same pencil. These are their results:…

A: a. Given data : The results of the five students are given below : 15.34 cm, 15.33 cm, 15.34 cm,…

Q: The density of human urine is normally between 1.003 and 1.030 g/mL, and is often used as a…

A: Given: Density range of normal human urine = 1.003 to 1.030 g/mL. Mass of urine sample = 26.875 g.…

Q: What were the main results found in this experiment? Include both quantitative results (i.e.…

A:

Q: a sample containing 33.42g of metal pellets is pound into a graduated cylinder initially containing…

A: Given mass of metal                 = 33.42 gram  Initially volume of water = 12.7 mL  Final Volume…

Q: Can a set of data be accurate but not precise? Please explain why

A: Precision can either be the number of decimal places to which you are sure, or the consistency of…

Q: 6. What is the difference between ACCURACY and PRECISION?

A: Accuracy:The measurement of how close the calculated value to the standard value is said to be…

Q: Why do we use quotation marks around the word true in the statement that accuracy refers to how…

A:

Q: The following statements are correct regarding errors except: O Detection of systematic method error…

A: There is one incoorect statement in the given 5 statements . We have to tell that incorrect…

Q: The standard definition of a quart is equal to 947 mL. Calculate the percent error of a student's…

A: Given  Actual value of quart=947 mL The measured value of quart=938 mL Percent error has to be…

Q: A technician used a section of glass tubing to measure the density of   a liquid. The inside…

A:

Q: My Data: Ensure Nutrition Shake: 0.038 g/mL Class Data: Group 7:Ensure: 0.0233 g/mL Is 0.0233 g/mL…

A: The measured values are not close to the true value and thus this value is not accurate.

Q: Compare: number of plates, N W₁ = 2.5; W₁l = 3.0 I 0.18 0.16 0.14 0.12 0.1 11 0.08 0.06 0.04 0.02 0…

A: No of plates = N = 5.54 * (Retention Time / Half of base width)2

Q: A student performed the same experiment as you. The following data was recorded in their lab…

A: We know that PV = nRT P= Pressure V = Volume n = No of moles T = Temperature

Q: A sample containing 33.72 g of metal pellets is poured into a graduated cylinder initially…

A: Given, mass of metal pellets = 33.72 g            initial volume of water in graduated cylinder =…

Q: L Using your textbook or othor resouce, write the accepted relationship between the inch and the…

A:

Q: When designing an experiment it is best to avoid using a result that is the small difference between…

A: Measurements can be accurate and/or precise. Accurate measurements have same value as that of true…

Q: "Systematic errors typically affect accuracy whilst random errors generally affect precision”. Do…

A: Accuracy means if we are performing any experiment and if we get a true value(expected value) than…

Q: What is the only way to reduce random error in measurements?

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

Q: 15.It is accurate to use measuring device calibrated in the US system in measuring quantities…

A: When we use units of some quantities we have to follow only a one single system of unit (generally…

Q: I measured a line that was 8.4 centimeters which is the same as 3.375 inches. How do I calculate the…

A: The relative percentage error is equivalent to the algebraic ratio between the difference measured…

Q: Consider this formula. If z = 4.0 and y = 9.2, what is the value of x? Express your answer to the…

A: Any final computation of a result must indicate the extent of reliability to be assigned to result…

Q: What is the best description of precision as applied to a set of measurements or data? Select one:…

A: In measurement of a set, accuracy is closeness of the measurements to a specific value, while…

Q: A cylindrical glass tube 20.0 cm in length is filled with acetone. The mass of the acetone to fill…

A: Given: length of tube=20.0 cmmass of acetone=19.33 gdensity of acetone=0.784 g/mL To find: Diameter…

Q: Given

A:

Q: A sample containing 20.30 g of metal pellets is poured into a graduated cylinder initially…

A: The density (D) of the metal is obtained as the ratio of the mass (m) to its volume (V) as follows:…

Q: The density of lead is 11.34 g/mL and the approximate density of water is 1 g/mL. If given 1 Kg of…

A: Given: Density of lead: 11.34 g/mL, mass of lead: 1 kg Density of water: 1 g/mL, mass of water: 1 kg…

Q: current is measure as 0.00007 A/cm2 unit area in units of mdd.

A: Zinc is the d-block element.  the symbol for Zinc is Zn.  Corrosion is a natural process and it…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.