Vhen reading off of a calibrated instrument or glassware, the last digit reported is always an estimation. This estimation introduces pur data. error to O systematic

Q: incorrect way of measuring

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

Q: Jhe density n Of nitrOgen is A 1.25066ML at STP. the ingrams of lo00 o at= 0.9463Lo use Only units…

A: Given:- Density of nitrogen gas = 1.2506 g/ml  Volume of nitrogen gas = 0.9463 L = (0.9463 x 1000)…

Q: The precision of an experiment is best described by O the % error O the true value O the % deviation…

A: % Error can be determined measuring deviation from true or accepted  value in terms of % . Where…

Q: A graduated pipet is calibrated to? Select one: O a. contain a certain volume of solution O b. use a…

A: Frequent calibration is very important to achieve accurate volumetric results and decreases the…

Q: (i) The maximum error in each mass measurement using the balance is ±0.005 g. Calculate the…

A: Cr=19.5152=0.375Cl=39.9635.5=1.126H=4.511=4.51O=36.0216=2.25Whole No. ratios,Cr=1Cl=3H=12O=6So the…

Q: help me find the standard deviation

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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: Which of the following sentence is incorrect: O Coprecipitation may cause either positive or…

A: * Occulsion is coprecipitation in which an adsorbed compound trapped inside the pocket formed as…

Q: What is the percent error? And how do I find it with the information provided.

A: Percent error or percentage error expresses as a percentage the difference between an approximate or…

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: scribes her results? a) Her results are precise, but not accurate. b) Her results are accurate, but…

A: If experimental values are close to true value then it is Accurate.  And if experimental values are…

Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume Brittney v A chemist…

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Q: A. Answer the following: a. Draw and label the parts of the electronic balance. b. Give three (3)…

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Q: What is an exact number? How are exact numbers treated dif-ferently from other numbers in a…

A: The significant figures can be defined as the digits in the given number that carry some meaning and…

Q: The following prompt will be used to answer the fırst six questions. An experiment was performed to…

A: Significant number: The non-zero digits are all significant. Among non-zero digits, there are large…

Q: statement false? AH° AS° = T K=0 InK=0 AG°=0 no false statements:

A: As per the rules only one question can be answered. Therefore here only the first table representing…

Q: Chemical Equation: Fe + H2O → Fez04 + H2 3. Compute for the AG of the equation: kJ/mol (Write your…

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Q: d) The number of u e) The ml values al f) The number of u g) The total numbe

A: n =principal quantum Number l = angular quantum Number l = 0 s orbital l= 1 p orbital  l= 2 F…

Q: Q1: Convert the quantities 300 Ib • s and 52 slug/ft' to appropriate SI units.

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Q: When doing percent error do the estimated value and true value need the same amount of sig figs or…

A: The true value and the experimental values are calculated under different experimental conditions…

Q: The relative error calculated for the analysis of Zn alloy was -4.1%. Assuming that the sample is…

A: The relative error is the ratio of absolute error to the measurement being taken multiplied by 100.…

Q: number with the lewest sighilicant igures. ecognized to be uncertain. We call nificant figures.…

A: The question is based on the concept of significant figures. we have to follow the rules of…

Q: What were the main results found in this experiment? Include both quantitative results (i.e.…

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Q: Why are percent error values never negative?

A: The percent error is given by: percent error=|(experimental value-theoretical value)/theoretical…

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

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Q: Given: Density @23°C = 0.99755 g / mL Total volume Mass of Mass flask Mass of True volume Correction…

A: The data given is,

Q: ਹlad stke feedfਟ ਸੁ su ne ud dਤਨ 01. 3.2Mt and hy ੧ aj_d653/mL b) 6-6 c ) 0.6s 4g JJ 0.6545g/ml ê ð.…

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Q: please help find the Percent yeild and limiting regent given the collected data Volume acetic…

A: Given: Volume acetic acid: 20.0 mL = 0.020 L Volume Isopentyl alcohol: 15.0 mL = 0.0150 L. Mass of…

Q: The following statements are correct regarding errors except: O Detection of systematic method error…

A: There is one incoorect statement in the given 5 statements . We have to tell that incorrect…

Q: The density of wat er aT IS.3°C IS 0.9983459/mL (F you mea Sured the clensiTy OF warer 10 be- recl…

A: Percent error :-  Percent error is dined as "The difference between the measured value and the…

Q: For question number 2 does that mean weigh the dish to 0.001g without clearing it ?

A: In step-1, after cleaning the evaporating dish properly, we have to heat to remove any impurities…

Q: answer with the correct number of significant figures but without "%" (Canvas will not let you to…

A: Here we calculate all required data from the information. Please see carefully the answer, last two…

Q: G. An irregularly-shaped sample of aluminum (- put on a balance and found to have a mass of 43 9.…

A: Volume of copper = Difference in the water levels…

Q: The mole is a unit for counting. O False O True

A: One mole of a substance is equal to 6.022×10^23 of that substance present in  ( atoms, molecules, or…

Q: The accuracy of an experiment is best described by O the % deviation O the average value O the %…

A:

Q: Unit Conversion (Round to 3 Sig Digs at ending) 6.0 × 10−9 m to pm

A: Unit conversion can be done by the unitary method and following the significant figure rule.

Q: V e its volume in cubic centimeters ( alt

A: Density of substance is calculated by dividing the mass with volume

Q: How many mg of iron (MM = 55.845 g/mol) are in 15.00 mL of a solution that contains 2.130 mg…

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Q: L Using your textbook or othor resouce, write the accepted relationship between the inch and the…

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Q: Current Attémpt in Progress A certain metal alloy has a density of 17.2 g/cm3. How many pounds would…

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Q: ubmerged in a graduated cylinder initially containing 20.00 mL of water. T, the level of the water…

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Q: 15.It is accurate to use measuring device calibrated in the US system in measuring quantities…

A: When we use units of some quantities we have to follow only a one single system of unit (generally…

Q: When calculating the percent error how do I know how many digits should be in my final answer can…

A: The difference between a measured value (experimental value) and an exact value (theoretical value),…

Q: When reporting the mass of weighed solid, one should write all numbers in the digital scale estimate…

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Q: Before proceeding to the analysis, the ____________ of the sample must be considered. a. size b.…

A: Answer: In the chemistry lab, samples are often being analyzed to gather the certain information…

Q: About 0.50g of zinc metal was weighed out in a tared weighing cup using a top-loading balance. The…

A: The readability of top-loading balances is about 0.001g. Hence they are also called precision…

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: (0.41 + 124.9)/1.4 × 10-2 =    with correct signifcant figures

A: The explanation is given below-

Q: Convert a speed of 341 cm/s341 cm/s to units of inches per minute. Also, show the unit analysis by…

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.