When a measuring scale is used properly to the limit of precision, the least significant digit recorded for the measurement is said to be uncertain. Explain?

Q: A chemistry student needs 20.0 g of acetone for an experiment. By consulting the CRC Handbook of…

A: Given mass of acetone is 20 g density of acetone is 0.790 g/cm3  volume of acetone is determined as

Q: mL mL 1 Cit 3 0.5 A B C CSM, MSU-’

A: Graduated cylinder

Q: Write an expression for the quantity 506,000 cm in which it is clear thatall the zeros are…

A: The given quantity is 506,000 cm.

Q: 28.5g of iron shot is added to a graduated cylinder containing 45.5 mL of water. The water level…

A:

Q: what is the measurement, uncertainty, and nuber of significant figures?

A: Interpretation - To explain the measurement, uncertainty and number of significant figures in the…

Q: Perform the following operations and answer with the correct number of significant figures AND…

A:

Q: In the lab a student measured the density of an Aluminum cylinder to be 2.89 g/cm3. The handbook…

A: Density is a physical quantity that can be determined with the help of the mass and volume of the…

Q: Significant figures are the indication of what? Why? Give an example too. (Please explain it shortly…

A: Significant Figures⇒Significant figures express or indicatesthe precision of a measureingtool used…

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

A: Yes, to some extent. This direction is more involved. Let’s use the example of direction (1) but…

Q: the type of measurement to the unit given below. the appropriate labels to their respective targets.…

A: The appropriate labels are: 1) millilitre- volume

Q: A micro-syringe holds a volume of 1.3 μL. To the proper number of significant figures, what is the…

A: pL and μL both are the units of volume. 1 μL=10-6 L1 pL=10-12 Ltherefore,1μL=106 pL

Q: A student makes the following measurements on a metal cylinder: mass = 13.93 g, height = 6.70 cm,…

A: Given information: Mass (m) = 13.93 g Height (h) = 6.70 cm Diameter (d) = 0.99 cm

Q: You determined that the measurements I. Inches is 0.96  and you found out that the same measurement…

A: The relationship between inches and millimetre is 1inch = 25.4mm

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: Significant figures are the indication of what? Why? (Please explain it shortly and easy to…

A: Accuracy measures the closeness between the calculated and observed value. Precision measures how…

Q: The density of gold is 19.31 g/mL, and the density of platinum is 21.43g/mL. If equal masses of gold…

A: As known density formula as,

Q: what decimal power do the following abbreviations represent: (a)m, (b)k,(c)m,(d)n, and(e)u?

A: Please find the attached images for the answer

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: How would I write 97,820 in standard scientific notation?

A: Scientific notations are used to express the very large or very small numbers in more convenient…

Q: Enter all measured data, and certain final answers to the correct number of significant figures as…

A: In this question, the values of the following are given with the correct number of significant…

Q: carry outbthe following operations and express the answers with the appropriatebnumber of…

A: Significant figures: The digits having a meaning in a given number are called as significant…

Q: What is the density in kilograms per cubic meter?

A: Given :- density of lead is 11.4 g/cm3  To calculate :- density of lead in kg/m3

Q: A sheet of aluminum (Al) foil has a total area of 1.000 ft^2 and a mass of 3.806g.  What is the…

A:

Q: The following four measurements were made for an objectwhose true mass is 4.56 g.4.55 g, 4.56 g,…

A: The given values of the measurement are 4.55 g, 4.56 g, 4.56 g, and 4.57 g. The true value of the…

Q: Which instrument, the beaker or the graduated cylinder, provides the more precise measurement?…

A:

Q: Explain the difference between precision and accuracy.

A: The standard unit of measurement is easy to understand by everyone as it gives the measurement ease…

Q: 1. Complete the following statement: Data that have a large systematic error can still be  a.…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: The number 9080000 written in scientific notation to the correct number of significant figures is?

A:

Q: How would you determine the density of an irregular object? A) d = m/v, so measure the mass of the…

A: Density (d) :-  The ratio of mass of an object to its volume is called as density of that object.…

Q: Why is it incorrect to say that the results of the measurement were accurate but not precise

A: While measuring any unit we work to meet the accuracy that means how close the measurements done to…

Q: Distinguish between the terms accuracy and precision.In general, explain why a precise measurement…

A: To find: Difference between the terms accuracy and precision. Explanation for why a precise…

Q: What is the measurement of water in the graduated cylinder (without units)?   How many significant…

A: Graduated cylinder is also known as measuring cylinder. It is a laboratory equipment which is used…

Q: Express 9.8272 x 102  in standard notation. Express answer with 4 significant figures

A: Standard notation of 9.8272 *100 in four digits is 982.7.

Q: (a) The diameter of Earth at the equator is 7926.381 mi.Round this number to three significant…

A: (a) Given, diameter of earth = 7926.381 mi which is approximate equal to 7930 mi. Hence, the…

Q: Question is attached

A: Measurement: It is the process of assigning the numbers to the characteristic of any substance that…

Q: The density of pure silver is 10.5 g/cm3 at 20°C. Is 5.25 g of pure silver pellets is added to a…

A:

Q: 2- The density of gold is 19.31 g/cm3, and the density of platinum is 21.43 g/cm3. If equal masses…

A: Given data:  Density of gold = 19.31g/cm3 Density of platinum = 21.43 g/cm3

Q: Can you help me please? If it includes these in the question, can you solve it using significant…

A: Arsenic trifluoride has 26 valence electrons and As is the central atom. There are four regions of…

Q: Explain why standard units of measurement are particularly important to scientists.

A: HERE ARE SOME REASONS:

Q: precision of this measurement?

A: On a graduated cylinder, scales are generally determined by its size. Given : Graduated cylinder…

Q: Sodium Chloride was placed in a beaker and the beaker and the sodium chloride together had a mass…

A: This problem is based on the simple additive properties of mass. Mass of a system is equal to the…

Q: A cylindrical tube 13.7 cm high and 1.20 cm in diameter is used to collect blood samples. How many…

A: The expression for finding volume of cylinder having radius of r and height of h is as follows,…

Q: For the laboratory equipment below give me the name, what it is used for, minimum measurement in mL,…

A: The apparatus is given that is used in laboratories, laboratory equipment is defined as an apparatus…

Q: When a measuring scale is properly to the limit of precision, the last significant digit recorded…

A: There is no a perfect machine.However,for very precise equipment,the margin is a very small number.…

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 new penny has a mass of 2.49 g and a volume of 0.349 cm3. Is the penny made of pure copper?…

A: solution-  given new penny mass m= 2.49 g  volume of the new penny  v= 0.349 cm3 density of the…

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.