What are significant numbers and why are they important in analytical chemistry?

Q: /(0.124M)+6.90 x 104 4Y3.45x104): 1 2.84 y0 is what I Keep Suting bt The Correct answer As- 0.124 M…

A: I think the parameter that has been asked in your question is concentration of reactant a at the…

Q: Explain why there are different branches of chemistry.

A: Chemistry is the science of matter  its compositions and reaction it undergo. We can see a chemistry…

Q: How many hundreds are in 4.3 million?

A: Given 4.3 million We need to determine number of hundreds in it.

Q: What is chromatography, and how does it work?

A: Chromatography is a scientific method for extracting constituents of a mixture. The mixture is…

Q: 2653,992 29.681 2105.182 20.450 2826.729 53.574 1700.711 003.628 1368.474 230 36.962 0.000 195…

A: The question is based on the concept of IR Spectroscopy.   we have to analyse the IR spectra…

Q: . Assuming the idol is pure gold, what volume would the bag of sand have to be in order to weigh…

A: Solution Density, mass of a unit volume of a cloth substance. The formula for density is d = M/V,…

Q: Generally, two types of representative samples are observed in the sampling process. They are gross…

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Q: Immunoglobulin antibodies occur in five forms. A sample of serum is analyzed with the following…

A: Given: The values of amount of each type of five forms of immunoglobulin are as follows,

Q: What is accuracy, in terms of a lab setting?

A: Accuracy is a measure of how close a measurement is to the correct or accepted value of the quantity…

Q: pectrum 2 4000 3000 2000 L000 RVENUNERI 2937 26 2684 41 1414 20 1360 39 629 31 607 49 481 36 473 52…

A: The question is based on the concept of IR Spectroscopy. we have to analyse the spectra provided and…

Q: 4 447.9 780.7 115.5 71700 703 669 5 cm3 10 cm3 20 cm³ 09.1 726.0 411.1 796 822 20 cm3 10 cm3 5 cm3…

A: Boyle's law confirm this experiment .  At constant temperature the pressure of gas is inversely…

Q: Which of the following is incorrect: a. General steps in quantitative analysis include: Method…

A: A multiple choice question based on chemical analysis, which is to be accomplished.

Q: Add mathematical symbols (+, -, *, /, v, !, etc.) to make the following expressions true. For…

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Q: Errors that are independent of the size of the sample being analyzed. * the sample

A: The relationship between the standard error of the mean and the standard deviation is such that, for…

Q: Composition C-4 is a plastic explosive having a density of 1.05 g/cm3. Calculate the mass of a brick…

A: Given,  Density (D) of C-4 plastic explosive brick = 1.05 g/cm3 Volume (V) of C-4 plastic explosive…

Q: Distinguish between accuracy and precision and between systematic and random error (§1.5) (EPs…

A: Accuracy – How close a measurement is to the actual or expected value. Precision – How close a set…

Q: You are working in a hospital and you saw that a patient took 500 mg of ibuprofen but the chart…

A: Mean, Standard deviation and %RSD (percentage relative standard deviation) are the ways to check the…

Q: Gold costs $400 per troy ounce, and 1 troy ounce 5 31.1035 g. Determine the cost of 10.0 cm3 gold if…

A: The relation between mass, density and volume is shown below.

Q: The diameter of a DNA alpha helix is about 8 ✕ 10−8 in. What is its diameter in centimeters?

A: Given: Diameter of DNA α helix= 8×10-8 inWe need to find diameter in cm

Q: Which of the following is incorrect: a. General steps in quantitative analysis include: Method…

A: Statement a is correct as it includes general steps in quantitative analysis.  Statement b is…

Q: What is 320*150

A:

Q: Counting by weighing" is used in other applications besides chemistry. A hardware store, for…

A: We are Given that :-  Hardware sells nails in package of 500. Office supply store sells 100 paper…

Q: e. Cul2 g. HgCl2 i. HgO k. FeS

A: e. CuI2 - Copper(II) iodide

Q: What is the best way to understand dimensional analysis?

A: dimensional analysis is the analysis of the relationships between different physical quantities by…

Q: On the molecular level, what does it mean for a solid sample to be pure?

A: As per bartleby guidelines i answered only first question so please don't mind thanks in advance.

Q: List all pictograms that are not hazard symbols but are seen in the laboratory

A: A pictogram is a chart which uses pictures to represent data in a simple way. The list is as…

Q: Part A 5100000 g   5.10×106g 5.1×106g 0.510×107g 0.51×107g 5.1×10-6g   Part B 26000 s   2.60×104s…

A: Since Lowest significant digit present in the given questions is also a part of answer means same…

Q: The blood plasma volume totals of 2.8-3.2 qt in an average human. A quart is a unit of mass. A quart…

A: A quart is a unit of volume. It is represented by qt. 1 quart is equal to 0.946353 liter. 1 qt =…

Q: While doing a lab, a student found the density of a g/cm. The accepted value for the density of…

A: According to the question,  Measured density of pure aluminum = 2.85g/cm3 Accepted value for the…

Q: How are systematic errors detected?

A: Systematic method error is a kind of systematic error. It will have a different calculated mean…

Q: A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 64.22…

A: Metric conversion factors are used to convert the units of numbers.  Some of the factors that can be…

Q: What is the density of a liquid, in g/mL, which has a mass of 1500 mg when the reference liquid used…

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Q: 6. What is the difference between ACCURACY and PRECISION?

A: Accuracy:The measurement of how close the calculated value to the standard value is said to be…

Q: Why do we use quotation marks around the word true in the statement that accuracy refers to how…

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Q: physical and chemical methods are one of the quantitative analysis .A True .B False .C .D

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Q: 14.255 g of a compound with the molecular formula C5H4N4 contains ______ carbon atoms. Report your…

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: 2934.93 2851.52 2792.42 2689.29 2659.37 2611.94 1449.27 1256.79 1038.70 1014.26 903.17 861.30

A: IR Spectroscopy is used to identify the functional groups present in an organic compound. Different…

Q: O 19.0 cm³ 6.0 cm³ O 7.0 cm³ O 13.0 cm³ O

A:

Q: > In a typical quantitative analysis, which step is the most crucial? What part will make or break…

A: Quantitative Analysis  Using mathematical and statistical modelling, measurement, and investigation,…

Q: How do I calculate the number of moles of potassium permanganate used in each titration?

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: How many picograms are there in 3290 kg?

A:

Q: ding coefficients (1, 2, 3, ...) in blanks). H3PO4 → H20

A: NaOH + H3PO4 -----> Na3PO4 + H2O  You should know about that, 1mol of H3PO4 neutralized by three…

Q: What are the important considerations in reporting analytical results?

A: Analytical result : A data analysis after experiment is called analytical result.

Q: What is a disadvantage of using scientific notation?

A: Scientific notations helps in writting small numbers or large numbers easy to read.  It helps in…

Q: In its most basic form, what is significant figures? Why is it necessary to learn it? What is its…

A: Significant  figures  basically  provides the clear picture of the actual measurements which are…

Q: 1. Give an example to applications of chemistry in engineering

A: Chemistry is used in the field of engineering directly or indirectly.

Q: A loss of 0.4 mL of Zinc occurs in the course of an analysis to determine that element. Calculate…

A: Given that in an experiment involving Zn there is a loss of 0.4 mg of Zn. We need to calculate the…

Q: The grouped data is also called .? a. Secondary data b. Qualitative data С. Raw data d. Primary data

A:

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.