what number is represented by barn

Q: incorrect way of measuring

A: If you will tilt your volumetric glassware it definitely gives you error  result of your…

Q: A chemist weighed out 101. g of aluminum. Calculate the number of moles of aluminum she weighed out.…

A: Given data, Mass of Al = 101 g Molar mass of Al = 26.98 g/mol

Q: I have to rank from greatest to least

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Q: 5) 5.0 × 10-9 m to pm

A: The transformation of one unit into another unit is basically unit conversion. However, this…

Q: any grams ore prosent in 5.39 modes

A: Given: The moles of AgNO3, (n) = 5.39 mol. The molar mass of AgNO3, (M) = 169.87 g/mol.

Q: Compare and contrast mass and weight.

A: Some terms are quite often interchangeably used but have minute differences between them. The mass…

Q: 6. Round each number to 3 sig figs: a. 1234 b. 0.023 c. 890 d. 1090.0010

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Q: A. small amount B. large amount C. medium D. stable

A: The question is based on the concept of metalloids. these are one of the categories of elements…

Q: How do you determine how many significant figures should be in your answer?

A: Rules for counting significant figures:Count the number of significant figures in the decimal…

Q: How many signifi cant fi gures does each number contain? a. 23.45 c. 230 e. 0.202 g. 1,245,006 i.…

A: All non-zero digits are considered significant figures. a. 23.45     b. 23.057     c. 230 d. 231.0…

Q: e weight

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Q: any grams of r

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Q: ow many mg of

A: We know that 1 pound=2.205Kg    hence 90Pounds=90/2.205=40.8233kg

Q: One millicurie is smaller than one becquerel. true false swer Try Another Version

A: The activity of a radio active element can be expressed in terms of millicurie and becquerel.

Q: What are the reference points in thermometer with Celsius scale?

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Q: determine wheather the zero in each number are significant  2050  9.00x10^2 0.0530 0.075 300…

A: The given numbers are represented as follows: 2050 9.00×102 0.0530 0.075 300 285.00

Q: Numbers 14 and 15

A: 14- Reaction mechanism A has one peak therefore it has one elementary step

Q: incorrect

A: According to the question, we need to balance the chemical reaction by ion electrode method based on…

Q: r of significant figure is

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Your car gets 25 miles galloon of gas . What would you be your Car's fuel efficiency in km/L

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Q: A chemist measures the amount of fluorine gas produced during an experiment. She finds that 635. g…

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Q: 2. The_ is a more accurate length measuring device. The uncertainty of the ruler is the uncertainty…

A: The Ruler is a more accurate length measuring device. The uncertainty of the ruler is  less than…

Q: e number of grams

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Percent Error is defined as: % = [measured value – accepted value] / measured value x 100

A: Percent error is used to get an idea about the possible error in the experiment based on the known…

Q: /hat mass of

A:

Q: Explain how adding a prefix changes a unit

A: Unit is something which denotes a measurement. The quantities are usually measured in terms of…

Q: Determine the number of significant figures

A: For the purpose of multiplication and division, the LEAST number of significant figures determines…

Q: Match the correct prefix with the factor.

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Q: I need the drawings of each number here

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Q: Round each number as indicated  a) 8.3158 (3 SF) b) 25225 (3 SF)

A: General rules for the significant figures are: 1) All non-zero numbers are significant. 2) Zeros…

Q: the moles of c t digits.

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Q: [Refere It is sometimes necessary to take powers or roots to solve chemistry problems. Take powers…

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

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

Q: The number 37.84637 rounded to 5 significant figures is When 12.9 is subtracted from 64.657, the…

A: we have to complete the given statements

Q: A chemist weighed out 101. g of calcium. Calculate the number of moles of calcium she weighed out.…

A: As the question asks to find out the no of moles ,so let me first define mole :- It is equal to the…

Q: Perform the calculations and determine the absolute and percent relative uncertainty. Express each…

A: Answer is given in below image  In a answer is 5.8±0.30 Absolute uncertainty = 0.30 Percentage =5.17…

Q: How many signifi cant fi gures does each number contain? a. 34.08 b. 0.0054 c. 260.00 d. 260

A: Significant figures   All non-zero numbers are significant Leading zeroes are not significant  Zero…

Q: What the correct answer. Calculate the number of miles in 4.95 g of nickel. For this question you…

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Q: = new temperature c The correct number

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Q: How many decimal values can you measure with a buret?

A: The amount of solution in a burette can be noted by looking the bottom of meniscus at eye level.…

Q: conversion factor?

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Q: Which purity of IPA has a higher density, 70% or 99%?

A: IPA is isopropyl alcohol. It is commonly used as a disinfectant within a pharmaceutical company. IPA…

Q: A/An is a common instrument in the general chemistry lab that is well-suited for measuring accurate…

A: A common instrument in the general chemistry lab that is well suited for measuring accurate volumes…

Q: he conversion.

A:

Q: ( Please see attachment ) Match the following statements to the correct number

A: Bromine Test This test is a qualitative test for unsaturated compounds. If unsaturation is there the…

Q: How do I convert 299 Gm to nm ?

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Q: K3PO4 (all numbers are subscripts)

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Q: Record the volume of the liquid in the graduated cylinder to the correct number of sign

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

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.