Based on the given data, why is Qlost + Qgained is not equal to zero? what could be the possible sources of error? Please explain briefly

Q: Why is it necessary for users to understand the principles behind statistical calculations in…

A: Given:-   Why is it necessary for user to understand the principles behind statistical calculations…

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: References Use the References to access important values if needed for this question. In the…

A: Energy (Q) = 55.7 J Mass (m) = 10 g T1 = 22.2°C T2 = 35.6°C

Q: A model for the average price of a pound of white sugar in a certain country from August 1993 to…

A:

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: What is the heat in kJ required to raise 1,973 g water from 27°C to 79°C? The specific heat capacity…

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Q: 3) A rocket launches off the ground. Its positions in feet of a particle after t seconds of flight…

A: Step 1: Step 2: Step 3: Step 4:

Q: Power is defined as energy per time, so it is the number of joules, or calories, a system produces…

A: First, we need to convert the energy in food from Calories to joules. We know that 1 food Calorie is…

Q: Theoretical values for pre-exponential factors are usually higher than the experimental values.…

A: Step 1: To get theoretical and experimental values closer to each other, you can consider the…

Q: Using the trendline from your plot, calculate the absorption of a solution with a concentration of…

A: Equation of the trendline is y = 16.88x - 0.0054 where y is absorbance and x is concentration.

Q: Experiment 1 Calibration of Volumetric Glassware The 10-ml pipet was calibrated using water that has…

A:

Q: The radioactive element carbon 14 Has a 1/2 life of 5750 years a scientist determined that the bones…

A: Radioactive decay follows first order kinetics.  So, k = 0.693/t0.5 ...(1)  Here, t0.5 = half-life =…

Q: Ecell  Mg‎2+(aq) + 2 e- -> Mg(s)    Mg2 + |M‎g = - 2.372  Sn4‎+(aq) + 2 e- -> S‎n2+(aq)  Sn2 + , Sn4…

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and…

Q: For the numbers 116.0, 97.9, 114.2, 106.8 and 108.3, find the rangeb and 90% confidence interval for…

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

A: The standard unit of temperature is Kelvin.

Q: 4) Other Linearization Choices 0/2 poin When using x = 1/A, the meaning of the slope is hc. There is…

A: If  E = hcλ can be represented as y = mx straight line where m is the slope of the life If x = 1λ…

Q: Calculate the kinetic energy of a 4.3 x 10^3kg satellite moving at a speed of 5.3km/s

A: Given :- mass 'm' = 4.3 × 103 kg  speed 'v' = 5.3 km/s  To calculate :-  kinetic energy     K.E. =…

Q: When there is going to be a frost in Florida, farmers will spray their crops with water before the…

A: When frost threatens crops in Florida, farmers employ a strategy of spraying water on their crops as…

Q: Taking the density of air to be 1.29 kg/m3, what is the magnitude of the linear momentum of a cubic…

A: A numerical problem based on linear momentum, which is to be accomplished.

Q: When the expression 412.272 + 0.0031 – 2.00707 + 0.00024 + 12.80 is evaluated, the result should be…

A: Addition and substraction of significant figures :- Answer of addition or substraction of…

Q: The frequency of a radio wave was measured to be (5.5x10^8) Hz What is the energy of the radio wave…

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Q: Evaluate the following expressions. Impose the rules for significant figures different ways for the…

A: Significant figures of value determine the precision and accuracy of a calculation. When expressing…

Q: y" 3y 18y = sin(8) = y(0) 3, y'(0) = -1 Using Y for the Laplace transform of y(t), i.e., Y =…

A: Step 1: Step 2:

Q: Given the following data, solve for the exponential equation. Please answer in this format: for…

A: Given:

Q: An object weighs 75.7 kg. What is the weight of this object expressed in pounds? [1 pound = 454…

A: According to the question, The weight of the object = 75.7 Kg Given, 1 pound = 454 grams Find - The…

Q: c) Compare the values of KA' and KB': Does the free protein bind ligand A or ligand B more tightly?…

A:

Q: Properties of a system could be measurable or non-measurable.

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Q: An electron moves in a two-dimensional rectangular box with the dimensions, Lx= 5.00 Å and Ly =3.00…

A: The energy absorbed photon in 3.641*10^-6 cm-1

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

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Q: What is unit of coefficient of friction? a. No unit b. Watt с. Кg d. Newton

A: The coefficient of friction has no unit .

Q: !

A: According to the question,  f(x) = asinπ12t+c+d Here, a = (the High temp-low temp)/2           d =…

Q: A popular car has an engine that is reported to have a volume of 5840 cm³ the size in cubic inches ?…

A: Answer: Given that,

Q: I just want to check if I did the calculations with the measurements correctly and with the right…

A: Density of a substance is defined as the mass upon volume of a solution. density is directly…

Q: A student is trying to determine the volume of a flask and compare it to the known volume. After…

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Q: You will find the final temperature when 5.00 grams of aluminum at 425℃ is placed in 50.0 grams of…

A: Answer :- (j) 28.03884 (°C)  The final temperature (Tf) of the mixture = 28.03884 (°C)…

Q: . An important continuous distribution is the exponential distribution p(x)dx = ceAdx 0 a.

A:

Q: 2) A student weighs a sample four times and collects the following data: a) Calculate the mean…

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Q: Calculate the kinetic energy of a 0.16 kg baseball moving at a speed of 34.0 Round your answer to 2…

A: mass of the baseball (m) = 0.16 kg speed fo the baseball (v) = 34.0 m/s Kinetic energy of a baseball…

Q: A patient is prescribed to take 2 pills/day of a drug for a month. The drug is available in 10.0…

A: 1 week = 7 daydosage of drug = 10.0 mg/pillgrams of drug =?

Q: The mass number of an element that has 5 protons, 5 electrons, and 6 neutrons is 11 10 16

A: Mass number = no. of protons + no. of neutrons So, according to question we have , no. of protons =…