Five students used the same ruler to measure the length of the same pencil. These are their results: 15.34 cm, 15.33 cm, 15.34 cm, 15.33 cm and 15.34 cm. The actual length of the pencil was 16.00 cm. a. Is the data precise? Why or why not? b. Is the date accurate? Why or why not? c. If I measured the length of the pencil to be 15.35 cm, what is my percent error?

Q: 6. 1.23 x 10* is equal to A. 0.0000123 B. 0.000123 C. 1.230000 D. 123000 E. 1230000

A: 1.23 × 10-4 is equals to

Q: A student calculated the density of isopropyl alcohol to be 0.688 g/mL. The accepted density for…

A: Given data: Experimental density value = 0.688 g/mL, Accepted density value = 0.786 g/mL. The…

Q: 1. Calculate the volume of a rectangular solid with a thickness of 0.620 cm and an area of 8.25 cm?.…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: A student experimentally determines the density of a metal cube. The edge length of the cube is…

A: The percentage error of student is 26.58%. The detailed explanation for this is provided in a…

Q: A 38.6 kg marble slab is shown above what is its density give your answer to the nearest tenth _…

A:

Q: A wooden object has a density of 12 g/mL and a volume of 7 mL. What is the mass of this object? 3. A…

A:

Q: D. Determining the Density of a Metal Block 246.1389 Mass of metal block Value of smallest markings…

A: Density of a substance is the defined as the mass per unit volume. Density = mass /volume    Given…

Q: A student is measuring the density of a liquid and gets the following results: 0.658 g/mL, 0.656g/mL…

A: Accuracy refers to the closeness of the standard value to the actual value.  Precision refers how…

Q: proposed multiplication or division Is this possible2 result, yes () cm) (010 ) = ? 0.23 cm m km yes…

A: Multiplication of two length in cm and m can be done but we should keep in mind to write the unit as…

Q: A student measured the length of the side of the cube below, and determined the length to be 2.22…

A: Interpretation: A student measured the length of the side of the cube and determined the length to…

Q: Determine the significant figures of each and describe the rule: 107000 0.00072 63.2300891

A: as per Q&A guidelines of portal I solve first three parts of  question because it comes under…

Q: a. (1.70) (7.87 x 10-3) (7.986 × 10³)-(4.86 b. x × 10²) X C. (7.986 × 10³)+(4.86 × 10²) X 8.306 d.…

A:

Q: The highest recorded body temperature that a person has survived is 320. K. Part A You may want to…

A: Temperature describes the energy state of a matter. The temperature can be expressed in Kelvin,…

Q: Convert 18.50 ft to the SI unit for length. A) 563.9 cm B) 0.005639 km C) 5.639 m An experimental…

A: SI unit of length is metremSI unit of mass is kg kilogram

Q: 55R) The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is g. 4nr.…

A: Using the relation  Mass = density * volume .                           We can find mass of lead…

Q: The density of mercury is 13.35 g/cm3. Experimental results gave the following data: 10 4.5 g/cm3…

A: Given : Actual density = 13.35 g / Cm3 Measured values of density = 10 4.5 g/cm316.65 g/cm315.75…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A:

Q: An under-inflated volleyball is pumped full of air so that its radius increases by 10%. Ignoring the…

A: Given, An under-inflated volleyball is pumped full of air so that its radius increases by 10%.…

Q: Three students use a meterstick with millimeter markings to measure a length of wire. Their…

A: Given: Their measurements are 3 cm, 3.3 cm, and 2.87 cm, respectively   To find: Explain which…

Q: M 20. A Jamal has a sample of a substance and was asked to determine the density of this substance.…

A:

Q: Two students, each made four measurements of the mass of an object. Their results are shown in the…

A: Accuracy : this represent the result how closely to standard Value. Precision : This represent the…

Q: find the length in m of a rectangular solid that weighs 95.5 g and has a width of 2.50cm and…

A:

Q: A piece of aluminum foil has a known surface density of 15 g/cm2. If a 100-gram hollow cube were…

A: Given: Surface density is 15 g/cm2. Mass is 100 g.

Q: A straight, uniform board is cut into three differently sized pieces such that the sum of the…

A: Given that a straight board is cut into three picese such that sum of length of A and B is equal to…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A: ->Multiplication and division of different units are possible. ->Addition and substraction of…

Q: The density of mercury is 13.35 g/cm3. Experimental results gave the following data: 10.45 g/cm3…

A: The question is based on the concept of analytical chemistry. we have to identify the nature of the…

Q: Consider the results of the archery contest shown in this figure.(a) Which archer is most…

A: a)

Q: 86 g CCl4 Express your answer using two significant figures. ΑΣφ %3D

A: Consider the given information is as follows; Mass of CCl4 = 86 g Number of molecules = ?       We…

Q: cm 1. The most appropriate measurement for this piece of peppermint stick would be: Select one: а.…

A: The precise measurement for any instrument depends on the scale of that instrument.

Q: Four research teams measured the mass of a fossilized sauropod skull, and what each team wrote in…

A: Accuracy of a measured  value is its closeness to the true value. closer a mesurement of true value,…

Q: Density is a physical property of a molecule that's measured as mass per unit volume. (a) Given that…

A: 2. (a) Given that : Mass of cube of plastic (m) = 2.331 g The edge length of the cube (l) = 1.500 cm…

Q: Pomegranate Juice Orange Juice White Grape Juice copyright 2010 www.sciencebob.com Which Juice is…

A:

Q: How would you determine the density of an irregular object? O measure the mass of the object using a…

A: Density :-  The ratio of mass of an object to volume of the object is defined as its density Density…

Q: 6. Define accuracy. Give the equation used to determine the accuracy of a measurement. 7. Define…

A: Answer:  Accuracy- It can be defined as the closeness of a measurement value to the true value. The…

Q: 85.  Solve these problems about lumber dimensions. (a) To describe to a European how houses are…

A:

Q: What would be the correct reading, with the correct estimated digit, when using a ruler that has…

A: Significant figures are the number of digits in a value that contribute to the degree of accuracy of…

Q: Perform each unit conversion.a. 28.9 nm to mm                     b. 1432 cm3 to L                c.…

A: Given conversions,       a. 28.9 nm to mm                            b. 1432 cm3 to L…

Q: (a) Multiply 2.334 cm and 0.320 cm.(b) Divide 55.8752 m by 56.53 s.

A: (a) Multiply 2.334 cm and 0.320 cm. Since the number of significant digits in 2.334 cm is 4 and in…

Q: The accepted density for copper is 8.96 g/mL. Calculate the percent error for each of these…

A: The percent error for given measurements has to be given.

Q: Perform each unit conversion.a. 1.4 in to mm                 b. 116 ft to cmc. 1845 kg to lb…

A: Since   1 inch = 25.4 mm             so,  1.4 in = 1.4 * 25.4                           =   35.56 mm…

Q: Complete the table.a. 1245 kg 1.245 * 106 g 1.245 * 109 mgb. 515 km _____dm _____cmc. 122.355 s…

A: Answer (a):

Q: 6. 1.23 x 104 is equal to A. 0.0000123 B. 0.000123 C. 1.230000 D. 123000 E. 1230000

A: 1.23 × 10-4 is equal to

Q: a. When 12.12 and 86.8 are added, the answer should be based on # Enter the answer with the correct…

A:

Q: 24R) The density of silver is 10.5 g/cm3. A piece of silver with a mass of 61.3 g would occupy a…

A: The formula for density is   Density = mass / volume. In above formula with known values of any two…

Q: Multiply: (2) (8.59 x 10°) × (7.41 × 1012) = (a) (6) (8.8 x 10 *) x (8.6 x 10°) - (b) メ (0) (8.62 x…

A: This question is related to finding out correct significant figures. Once calculation and then write…

Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A: This question is related to units of measurement. We need to predict the given mathematical…

Q: 1. Approximately, what is the percent uncertainty in the measurement 3.70 + 0.25m? 2. Convert 1.57m…

A: 3.70+/-0.25m this the range is from 3.70-0.25 to 3.70+0.25 i.e. 3.45 to 3.95 respectively the…

Q: A student calculates the density of a lead cylinder to be 10.3 g/cm3, but the actual density of lead…

A:

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.