given your experience in mass determinations (Experiment 1) and with volumetric glassware (Experiment 2), which factor used in calculating the density - mass or volume - is likely to be measurable with greater precision?

Q: Why is it important always to use the same balance during the course of an experiment? What are the…

A: Let's focus on these two questions. 1)Use of same balance during the course of an experiment…

Q: Super fine 40-gauge copper wire has a diameter of only 0.080 mm and weighs only 44.5 g/km. Suppose a…

A:

Q: The radius of an atom of gold (Au) is about 1.35 Å. Part A: Express this distance in nanometers…

A: Radius of

Q: Which scale is most useful for reporting data from the spectrometer? Why?

A: The two scales used for analysis in UV spectroscopy is percent transmittance and absorbance.

Q: what is chemistry? why is it reliable, flexible and testable?

A: Chemistry is a branch of science, which deals with systematic study of structure, composition and…

Q: Some mixtures do not have the same composition, properties, and appearance throughout. Why?

A: Mixtures are defined as the substances which is formed when two or more substances are combined such…

Q: Given the data below, calculate the mass of copper in the original sample. Mass of original sample…

A: This question can be solved using simple subtraction.

Q: Substance Mass (g) Color Taste Flammability 1. Salt 2. Sugar 3. Water

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

Q: the total mass of these atoms?

A:

Q: Why do physical properties play a role in chemistry if they do not involve any chemical changes?

A: I

Q: I am having trouble understanding the difference between a compound and mixture and how to identify…

A: When two or more elements are present together they are called compounds. Mixtures are made up of…

Q: (a) Palladium (Pd) is an element with properties similar to those of platinum. It is useful in…

A: Given : Mass of bar = 96.03 g Length of bar = 10.7 cm Diameter of bar = 9.82 mm = 0.982 cm…

Q: Give the names of the elements represented by thechemical symbols Li, F, P, Cu, As, Zn, Cl, Pt, Mg,…

A: To find: The name of the given elements represented by the chemical symbol

Q: 1. Which substances have similar physical property? Explain your answer. 2. Which substances have…

A: The properties of a substance which can be observed without undergoing any change in the…

Q: A physical property is; A) The ability of a sample to undergo change B) A property the sample…

A: We need to give a definition of a physical property based on the fact of change of composition.

Q: Flow Chart for the Separation of Salt, Sand, Zinc (& Charcoal) 3. Complete the Flow Chart before you…

A: Here it is given a flow chart for the separation of salt,sand,zinc .Lets see which separation…

Q: A student performed an analysis of a sample for its calcium content andgot the following results:…

A: The question is based on the concept of analytical chemistry. we have to explain regarding accuracy…

Q: A student found that her mixture was 13% NH4Cl, 18% NaCl and 75% SiO2. Assuming that her…

A: Given               In mixture                       % of NH4Cl = 13%                       % of…

Q: Substances:  1.Burning of Matches 2. Candle wick in burning of candle  3. Table Salt dissolved in…

A: Chemical Change : chemical change occur when a substance combined with another substance to form a…

Q: A What I have learned? Answer the following questions. 1. Can a physical change occur even if there…

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

Q: Drag conversion units onto the boxes in the equation to make conversions. Some boxes can be left…

A:

Q: in a pure sample of blue vitriol, the Cu content is 25.45%. what is the percentage of water?

A:

Q: A cube of an unknown metal measures 1.61 mm on one side. The mass of the cube is 36 mg. Which of the…

A:

Q: Volume of DNA crystals is 0.144 nm^3 what is the volume in milliliters

A: Given: Volume in nm = 0.144 nm3

Q: When is sieving and fractional distillation a good method for separating mixtures? Cite an example.

A: Sieving- It is a technique for separating particles of different sizes by using a sieve. For…

Q: Class A 25 mL Pipette Calibration Actual Volume Mass of Water Delivered, g Calibration Initial Mass,…

A: Data given: Calibration # Initial mass, g Final mass, g Mass if water delivered, g Actual volume…

Q: It has been estimated that there is 4.00 × 10-4 mg of gold per liter of seawater. At price of…

A: This question can be solved by using basic conversion factors as used in the solution given below. 1…

Q: A 100 mL solution of theobromine in water is made, and the solution has a density of 1.16 g/mL. If…

A: Given: Density of theobromine solution = 1.16 g/mL The density of water = 1g/mL, To calculate:…

Q: The relationship between ppm with M and N: ppm = M x M.mass x 1000 ppm = N x Eq.mass x 1000 %3D

A: ppm stands for "parts per million" and it also can be expressed as milligrams per liter (mg/L). This…

Q: R2 R2 он Nanocrystalline MgO CH,CN, 100 °C R1 R1 2

A: Nanocrystalline substances are chemical substances which are used in small scale and which exhibit…

Q: A 4-M sample of hydrochloric acid, HCl, has a density of 1.42 g/ml. What is the mass % (wt/wt) of…

A:

Q: Suppose now that you wanted to determine the density of a small crystal to confirm that it is…

A: total volume = 20.0 mL volume of CHCl3 = x volume of CHBr3 = 20 - x total mass = 20 x 2.07 = 41.4 g…

Q: All of the platinum ever mined = 25 ft3 What is the price of all of the paltinum ever mined?…

A: The conversion of volume of platinum from 25 ft3 into cm3 can be done as,

Q: You are given a hammer, a battery, a bulb, wires and switch.(a) How could you use them to…

A:

Q: 2. Calculate the volume of 435 g block of copper. d=m =V=Mv =H359 8.939lcm3 48.712 3D 5. A…

A: Since we only answer one question, we’ll answer the first one. As you have solved the first question…

Q: how many Br2 molecules are present in a 1.0-mL sample of pure liquid bromine?

A: Number of moles = mass/molar mass  1 mol contains 6.022 × 1023 molecules

Q: 26,000 nanoliters = ? dekaliters %3D 26.9 = ? 62 = ? %3D

A: The properties of matter are mainly two types. These are extensive properties and intensive…

Q: What separation method could you use to separate water from alcohol? *

A: Separation methods are those  techniques by which different compounds in a mixture are separated…

Q: 1. You are tasked to make an alternative disinfectant for corona virus. Which materials are you…

A: Disinfectant is necessary tool to combat corona virus. In disinfectant some chemicals have to be…

Q: Me (ii) 1) DIBAL-H → ? hexane, –70 °C 2) H20/H*

A: 3). DIBAL-H is a reducing agent that reduces the carbonyl group into alcohol.

Q: What mass of potassium gold cyanide, KAu(CN)2, contains 311 g (10 ounces) of gold?

A:

Q: What is the mass of fresh water (ρ= 1.00 g/cm3) in a 78.0 Ltank?

A: Given : density of water = 1.00 g/cm3  Volume of tank = 78.0 L

Q: You need 8 different masses in the range of 2.50 to 7.00 grams they need to be spread out as evenly…

A: Given: lower range = 2.50 g Upper range = 7.00 g number of masses (n) = 8 common difference = d

Q: A student needs to identify an unknown substance found in the lab based on its physical properties.…

A: We are given physical properties like mass and volume and density data, and we have to identify the…

Q: 2. A student performs a separation mixture and obtains the following data: Mass (g) 75.254 g 80.524…

A: Since mass of empty beaker =75.254 g mass of beaker + mixture = 80.524 g => Mass of mixture =…

Q: grams of carbon

A:

Q: 2. The Mercaptan content of household gas supplies is monitored continually to ensure that the gas…

A: As per our guidelines we can only solve first three sub-parts . Please resubmit other questions as…

Q: A student performed a similar experiment to the one you performed: They took a crucible and lid,…

A: It is given that mass of crucible and lid = 22.538 g, the mass of crucible + lid + sample before…

Analytical Tools

Analytical tools or analysis tools help one to get into a conclusion or results from the data collected. Analytical tools can be applied for simple data sets and also in the case of big data analytics.