write UNCERTAINTY IN MEASUREMENT

Q: write UNITS OF MEASUREMENT

A: The SI system, also called the metric system, which is used around the world.

Q: Standard deviation is an indication of the... a. precision of one measurement b. accuracy of one…

A: Standard deviation:a number which is used to inform how measurements for a group are spread out from…

Q: measurement uncertainty”. Among the instruments

A: in this question analytical balance , serological pipette and graduated cylinder is the highest…

Q: What kind of situation in which you might need to convert the units of a measurement ?

A: when describing size of macro units we use units like grams, kilograms.When describing size of micro…

Q: Using a metric ruler, measure these objects to the correctnumber of significant figures.(a) quarter…

A:

Q: Should I write my answer as a decimal

A: The dissociation constant expression would be:   Kf=1/Kd  Kd = 1/Kf  Kd = 1/1.0×1016    Kd = 1.0 ×…

Q: What is measuremen

A: Thermometer : It is a instrument used to measure the temperature . A glass thermometer works on the…

Q: A ruler used to measure a penny has markings every 1 mm. Whichmeasurement for the size of the penny…

A: Given that: A ruler has markings every 1 mm. To find: The size of the penny is correctly reported…

Q: When reading the graduations on a graduated cylinder they are read from? Select one: a. the bottom…

A: the bottom to top

Q: (a) List the SI units of length, mass, time, electric current, temperature, and amount of substance.…

A:

Q: Length is a derived quantity

A: Derived quantities are defined as those quantities that are being calculated from 2 or more values…

Q: How does the uncertainty in measurements affects the outcome of an experiment?

A: Error has to do with uncertainty in measurements that nothing can be done about. If a measurement is…

Q: 836.2 MHz (common frequency used for cell phone communication) Express your answer in joules using…

A:

Q: Write a brief explanation about importance of measurements in chemistry.

A: Accurate, precise measurement is a fundamental component of good science. For this reason,…

Q: Arrange the measurements from longest length to shortest length.

A: 1 km > 1000 inch > 10 yard > 250 cm Explanation All the values are at first converted into…

Q: How do the sources of error affect precision and accuracy.

A: The sources of error affect precision and accuracy have to be given below.

Q: x=(2.2*10^6 M^(-2)s^(-1))(0.10 M)^3 Enter the answer and include units. * is supposed to be a…

A: On subjecting a value to arithmetical operations such as addition, multiplication , subtraction etc,…

Q: e ruler is in centimeters (cm). Record the length of the rod below taking into count any uncertainty…

A: Centimeter is unit of measuring length. Meter, decimeter and millimeter are other units of length.

Q: Distinguish between accuracy andprecision and their representations:error and deviation

A: The standard deviation (SD) measures the amount of variability, or dispersion, from the individual…

Q: How to convert meter to micrometer

A: Given:  have to explain how to convert meter to micrometre.

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: A mL graduated cylinder has a height of 7.12 inches. Convert height in m

A: Since 1) 1 m = 100 cm  2) 1 in = 2.54 cm Hence dividing equation 1 from 2 we get  1 m / 1 in = 100 /…

Q: O MEASUREMENT Multiplication and division of measurements

A: General Rules: For addition and subtraction, the same quantities or the quantities which can be…

Q: Compare and contrast the following: (a) error and uncertainty, and (b) random error and systematic…

A:

Q: Compare the objects and masses from Part III. Which measurement included the highest percent of…

A:

Q: perform the follwing conversions. Show your set ups. a. 683 nanometer (nm) to angstrom (A) b. 520…

A:

Q: . . is the difference between the value of a quantity as measured and the accepted value of the same…

A: In the given question we have to define the define error and relative Error. Error is the difference…

Q: Which digit is the estimated digit and what is the level of uncertainty for this number: 2467.00

A: Significant figures are used to express the degree of accuracy of an answer. The rules for…

Q: What are the examples of Quantitative Chemistry?

A: Interpretation: The examples of Quantitative Chemistry are to be provided.

Q: A 10mL graduated cylinder has a height of 7.12 inches.  Make the following conversion  Height in m

A:

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: 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: Discuss the accuracy of a graduated cylinder and buret. State the advantages and disadvantages of…

A: Burettes are more accurate than graduated cylinders.  A 50 mL burette is more accurate than a 50 mL…

Q: What are the basic four units of measurements?

A: These are the following basic units:

Q: the cubic centimeter (cm3 or cc) has the same volume as a ___. cubic inch centimeter cubic liter…

A: The relationship between cubic meter to meter.

Q: Which human error would contribute to an incorrect volume measurement? measuring to an additional…

A:

Q: 8. 9. 7. 17 63 -391 38 -16 62 37 15 61 Graduated cylinders #7-9 were measuring increments of mL.

A: The reading given are,

Q: Converting units of measurements

A: The measurement units can be converted to each other with the help of dimension analysis method.

Q: Place the following numbers in scientific notation, rounded to 3 significant digits.…

A: The way that is used to express very large numbers or small numbers into simplest form or can say…

Q: What are the apparatus used to measure objects? What are they measuring (ex. Ruler measures the…

A: There are many apparatus used for measuring objects like for measuring length of an object,…

Q: Filtration is a technique used to separate solids from liquids.

A: Filtration is one of the separation technique.

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: The are the markings on an instrument that represent the highest accuracy that the instrument can…

A: Precision is the representation of how close are the two or more measurements to each other,…

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: Correct! Now, determine the uncertainty value for the measurement. 7.48 ± A mL 7 SUBMIT UNCERTAINTY…

A: Uncertainty is the half of the smallest possible measurment that can be made with that glassware.

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: What are the key features of the metric system of measurement?

A:

Q: Define accuracy and precision.

A: During laboratory work data calculated experimentally varies from theoretical or from standard data…

Q: level of uncertainty

A: LEVEL OF UNCERTAINITY

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.