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

Q: Do you round the vant hoff to the nearest whole or leave it as a decimal?

A: Depression of freezing point of an electrolyte solution : when a non volatile solute added in a pure…

Q: Determine the precision of the graduated cylinders, and get the volume with the right significant…

A: Determine the precision of the graduated cylinders, and get the volume with the right significant…

Q: c. You make a 100 mL, 1 mM solution of glycine in water using a balance with an uncertainty of 0.1…

A:

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

A:

Q: The agreement between the tested values is known as O A. Precision OB. Certainty OC. Significant…

A: The correct ans is option (E) Accuracy.

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: 548.8 + 0.2 x 55.4±0.6 (1142.9 ± 0.6 – 171.0±0.5) ANS: Absolute uncertainty: Percent uncertainty:

A: The value which gives the range of true value when combined with reported value is known as absolute…

Q: A cylindrical tube 10.2 cm high and 1.20 cm in diameter is used to collect blood samples. How many…

A: Height of cylindrical tube, h=10.2 cm Diameter, d=1.20 cm Radius, r=1.20/2=0.60 cm Volume =?

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: 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: Why does 25000 only contain 2 significant figures?

A: Given that a number 25000 25000 only contains two significant figures.

Q: Perform the following arithmetic operations, and report the result to the proper number of…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Why are repeated trials of the same measurement desirable

A: Repeated trials means measurement of same  data repeatedly.

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: the true density of methanol is 0.792 g/mL based on the answer 0.762 what is the percent error of…

A: Given— True density = 0.792 g/ ml Measured density = 0.762 g/ml

Q: Perform the following calculation: g -0.00030- x 20.0°C °C x cm³ What is the answer to the…

A: Multiplication and division of significant figures :- The result of multiplication or division…

Q: The true dependence of y on x is represented by the line.Three students measured y as a function of…

A: a) red, green  b) green, green  c) green, purple d) purple, purple e) purple, green The given set of…

Q: How do I determine which value is the most precise and which value is the most accurate when given 4…

A: In chemistry, there are many ways to check the deviation of experimental data from the accurate…

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: 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: What is the uncertainty in a measurement of 0.39 mm?

A:

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: 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: Rewrite this measurement with a simpler unit, if possible. g cm 3.6 2. cm 'cm

A: g = unit of mass cm = unit of length

Q: 3. Convert the following measuremer -5 6.9 x 10 %3D 3 0 = cm

A: We have to predict the answer in given units.

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: 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: (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: The uncertainty in the measurement 0.0035 mg is

A: The mentioning of the number of significant figures is quite helpful in determining the uncertainty…

Q: What are the standard SI base units of length, mass, time, andtemperature?

A: Standard SI base unit of Length - Meter (m) Standard SI base unit of Mass - Kilogram (kg)

Q: Round 0.03259651 to four significant figures

A: Rounding off a number means neglecting some digit which will not change the value of the number…

Q: (a) How many significant figures should be reported for thevolume of the metal bar shown here? (b)…

A: The volume of the metal bar is calculated as shown below. The volume of the cube is 16.56 cm3 which…

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: Round 0.00971659 to three significant figures.

A:

Q: Round to 3 significant figures 0.0014851

A: Significant figures refer to the number of digits that has contribution to the value or measurement.…

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

A: Note - There is a word error in your question, i.e., least should be replaced by last. Taking it…

Q: 1. (2×103g +7.613g)/(0.069cm3 - 0.033cm3) Carryout that operation as if it was the calculation of…

A: The given calculation is of division.The numerator part is addition and the denominator part is…

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: Carry out the following operations and express the answers with the appropriate numbe significant…

A:

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 value of a measurement must be available if the accuracy of a measurement is to be determined

A: The physical dimensions of a substance are calculated by observing and taking down the measurements.…

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: The agreement between the tested values is known as O A. Precision B. Certainty OC. Significant…

A: Given: Agreement between the tested values.  To find: what is this agreement between the tested…

Q: What is the fraction used to determine the uncertainty in a measurement?

A: For determining the uncertainty in measurement in terms of fraction  we will consider an example…

Q: Is it possible for a calculated answer from an addition or subtraction problem to contain more…

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.