Density of object analysis Density (g/cm³) Diameter Volume Height (cm) Mass (g) (cm) (cm³) Object A 1.14 1.71 3.175 Object B 1.14 1.88 3.468 Object C 1.19 1.94 3.932 Object D 1.12 1.51 2.665 Table view List view Density statistics Density (g/cm³) Average Standard deviation Coefficient of variation (CV) True density 1.810 Absolute error % error

Q: Could you help me this calculation part?  Mass of empty, dry crucible (g): 0.5g Mass of crucible…

A: Given: Mass of empty dry  crucible = 0.5 g so when we ass sodium bicarbonate to it, the mass will…

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A: The significant figure refers to particular digits in a number. According to the measurement rule,…

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A: We have knowledge about two equations: One is Nernst Equation according to this, Second is…

Q: Part A An electron acquires 6 60x10-16 J of kinetic energy when it is accelerated by an electric…

A: Kinetic Energy of electron = 6.60 × 10-16 J Charge on electron = 1 Coulomb = 1.60 × 10-19 C

Q: A one-step conversion is sufficient to convert a temperature in the Celsius scale into the Kelvin…

A: The water boils at 373.15 K (Kelvin) and 100°C (Celsius) and water freezes at 273.15 K (Kelvin) and…

Q: in a different experiment it is observed that 332 cal of heat is absorbed as the temperature of 58.2…

A: This is a simple problem of thermal equilibrium where we have to find out the specific heat capacity…

Q: Calculate the amount of heat needed to boil 69.7 g of ethanol (CH,CH₂OH), beginning from a…

A: The amount of heat needed to boil ethanol can be calculated using the formula: Q = m x ΔHvap where Q…

Q: alance the chemical equation by adding coefficients as needed. equation: FeCl₂ (aq) + KMnO4 (aq) +…

A: The balanced chemical is the equation in which the number of atoms of each element on either side of…

Q: Calibration of the Picnometer, mass of empty picnometer is 30.708g, mass of picnometer + water is…

A: Mass  of empty picnometer is   30.708 gm Mass of picnometer + water is 61.018 gm Mass of water =?

Q: ubtract 3.58 x 10^-2 from 1.41 x 10^11 and report answer in g.

A: so the answer will be 140.99*109 g which can be considered as 1.41*1011 g

Q: Calculate the heat change in calories for freezing 40 g of water at 0 ∘C. Express your answer as a…

A: Initially the water is at 0˚C. Mass of water = 40 g ∆Hf of water = 79.72 cal/g

Q: Do metals become positive or negative

A: Metals lies on the left side of the periodic table.  Metals are electropositive in nature which…

Q: What are the units and numerical value of standardtemperature?

A: The standard unit of temperature is Kelvin.

Q: Distinguish the difference between a coefficient and a subscript?

A: 1.Subscripts are part of the chemical formulas of the reactants and products which indicates the…

Q: Why we don't have to divide ± 0.015 g?

A: In this question, we have to answer related to the preceding question.

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A: Lambert  beer's law A = ECl E= Molar adsorption  coefficient  C = concentration  l= path length

Q: Which of the following is a unit of energy? Mol Kelvin Btu Gram

A: Units are used to measure physical quantities such as time, length.

Q: How many Joules if 4000 calories? Show computation

A: 1 calories = 4.182joule

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A: In the given problem, do the cube of the value andw find out the value of x.

Q: resource from Cengage Learning PT ALLOWED Submit Submit Answer E Course Home CHEMWORK Alexander…

A: Given,  The chemical formula of penicillin: C16H18N2O4S :

Q: How can I calculate this following this formula?  Ecell = E°cell - RT/nF lnQ

A: Answer: This quetsions demands the explanation of the values used in the original solution.

Q: What are all of the si units

A: SI units are International system of units.

Q: A container of gas is placed in a freezer at a temperature below the boiling point for the…

A: Given : Gas is condensing at a temperature below its boiling point temperature.

Q: Constants Periodic Table The heat capacity of an object indicates how much energy that object can…

A: Part B. When the amount of heat require to raise the temperature of one mole of a pure substance by…

Q: Convert 5769.8 cg to g Write your answer on the blank below, including units

A: Dimensional analysis is the method in which we are converting one unit to another unit.

Q: A student dissolves 14.2 g of ammonium chloride (NH4Cl) in 200. g of water in a well-insulated open…

A:

Q: An automobile of 3000 kg travels toward north with a constant velocity of 70 km/h . All forces…

A: Force is given by: F=m×a where m is the mass and a is the acceleration.

Q: Convert 2270 cal to its value in kilojoules. Express your answer to three significant figures THA…

A: The given value of energy = 2270 calThe relation between calories and joule is given by

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Q: To be able to get for the slope of a linear graph, we can use the formula

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Q: Please convert 24.1 x106 seconds to years. Thanks

A: The conversion factor for seconds and hours units is,1 h = 3600 sThe conversion factor for hours and…

Q: One student calibrated a 50-ml burette by using the mass of water delivered. The student used an…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: What is the answer to the following calculation, to the correct number of sig figs?…

A: What is the answer to the following calculation, to the correct number of sig figs?

Q: Calculate the kinetic energy of a 490. kg boat moving at a speed of 6.1 Round your answer to 2…

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Q: Show all work and steps. How many non zero digits are there? 30 040 g

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Q: Q: assume citrix acid makes up 7.96% by volume of the lime juice . How many moles of citrix acid…

A:

Q: Is the calculation step the last step in solving a chemistry problem? Why or why not?

A: The solution is given below -

Q: After carrying out the operation (13.7+0.027)+8.221, how many significant figures are appropriate to…

A: Given,The operation:(13.7+0.027)÷8.221

Q: Hi. I am trying to calculate the percent of water in an uknown hydrate. The given data is: mass of…

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Q: how do you convert Joules to reciprocal cm (cm-1) ?

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Q: Macmillan Learning Perform the calculation and report the answer using the proper number of…

A: Given,

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.