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Q: Time (min) Temperature (°C) 25.00 1 21.70 20.150 18.70 4 17.50 16.80 15.60 7 13.40 8 11.90 10.50 10…

A: Answer: This question is based on the understanding of the phase change of substances.

Q: 16 Hz 16 Hz CDC13 -1.758 -1.718 29 19 L- 7.612 109 L 6IB L 1.414 1.411 A09 60 L- -1.250 -1.102…

A: The correct interpretation of 1H NMR spectrum is given below.

Q: STARTING AMOUNT X A strand of spider's silk has a diameter of 3.50 micrometers. How wide is the…

A:

Q: The following item is used in chemistry laboratory. It is called as a glass rod with bulb. Select…

A: The Given chemical labarotary equipment is

Q: Give some importance of Job's Method of Continuos Variations

A:

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: 10 3 9 2 6 (ppm) 8 7 1 6 01 5 4 1.00 3 0.50 2 3.00

A: The question is based on the concept of organic spectroscopy. We need to identify the compound.

Q: SOCl2 Na

A:

Q: 1. For the reaction below: a. b. Predict the products and show the mechanism using curved arrows.…

A: To predict the products and show mechanism using curved arrows.

Q: Challenge (1.32 × 1 0 3 g) ÷ (2.5 × 1 0 2 c m 3)

A: For division,  The LEAST number of significant figures in any number of the problem determines the…

Q: 10 1.00 2.00 8 3.00 7 6 5 8 (ppm) 8.1 8 7.9 7.8 7.7 7.6 7.5 d (ppm) 3 2 1 0

A: The question is based on the concept of organic spectroscopy. We need to identify the compound.

Q: The following arrows are incorrectly drawn and I drawn them correctly please check if it's right and…

A: In this question, we will give explanation with correct resonances for each wrong resonance…

Q: 1. 9.3 + 12.20 + 6.571 = %3D 2. (5.3 + 6.678)/25.0 =

A: Significant figures rule for addition and division  For Division and multiplication The least number…

Q: Chart 1 > E H X V fx 1 Axis Title F E LN K 1/T -1.20397 0.003356 -0.59784 0.003145 -0.16252 0.003003…

A: The required thermodynamic equation to draw ln(Keq) versus 1/T plot is: ln(Keq) = -∆HoR*1T + ∆SoR…

Q: Use your calculator to determine the answer to the following calculation: 1.0×10-15 4.2x10-7 Express…

A: Significant figures are the digits in a number that carry meaning or contribute to the precision of…

Q: Activity 5: A pound of potato chips from Hailey's favorite brand costs $4.50. A 10 oz bag of the…

A: A common measurement system allows us to make direct comparison instead of having to know things…

Q: A light bulb consumes energy at a rate of 80.0 joules per second . How long in seconds will it take…

A: Given ; rate = 80 j/s

Q: (0.41 + 124.9)/1.4 × 10-2 =

A:

Q: Show all the work and setps.  Perform the following calculations using your calculator and then…

A:

Q: What happens when you heat water from 0°C to 100°C? (Section C> D)? What is this added heat being…

A: The curve is a heating curve that shows how ice is converted into steam by continuously supplying…

Q: What is the result of the following calculation to the correctnumber of significant figures?(6.266 −…

A: (6.266 − 6.261) ÷ 522.0 = ( 0.005) ÷ 522.0 = 9.579 x 10-6  Number of significant figures are 4.

Q: What is the result of this expression: 3.62 x (22.3 –20.3) /0.6655=

A: The result of the expression has to be given,

Q: HO H Drawing 1. CH3CH₂Li 2. H3O+

A: Given that, the reaction is:

Q: One of Dr. G’s CHEM 102 students is working part-time at a hardware store. A customer tells this…

A: There is a significant difference between the significant numbers and the exact number. In…

Q: Determine the value of the slope (m), y-intercept (b), and the coefficient of determination (r²) A)…

A:

Q: Taking into account that dH = TdS + Vdp,what is true about temperature? A) T = (p/S)VB) T =…

A: Given:

Q: Lim Vy +x -2

A: All things are provided in given solution..

Q: The mass of a piece of metal is 30.4571 grams. When the piece of metal was dropped into a graduated…

A:

Q: Which has the correct answer?                  (in significant figures)…

A: Significant numbers are very useful for accurate measure of any measurement.

Q: average body temperature of a red-tailed hawk is 41.1C what is the temperature in K

A: Temperature in kelvin= 273.15 + Temperature in Celsius

Q: Perform the calculation and record the answer with the correct number of significant figures.…

A: We have been given a calculation and we have been asked to perform given calculation and record the…

Q: A process starts with a 26.47 kg reactant mixture and ultimately produces 11.19 kg of product,  9.45…

A: Given:Initial reactant mixture: 26.47 kgProduct produced: 11.19 kgBy-products: 9.45 kgWater: 5.83 kg…

Q: A sample of 500 g dry sand, when poured into a 2 litre capacity cylinder which is partially filled…

A: The mass per unit volume of a substance is known as the density of the substance. The density of a…

Q: The minimum number of centrifuge tubes in a centrifuge machine during its operation is one. *…

A:

Q: The rate of settling for 2.5 microgram powder in glycerin is 4.25*10^-8 How did we get this result?…

A: The settling rate of particles in a fluid is often described by Stokes' law, which states:Where:-…

Q: How did you get y=0.115x+0.1785? And r^2= 0.9935

A: In order to find the linear regression equation, y=0.115x+0.1785, we take the help of an Excel…

Q: OIf  = a +2x B= d - 2x %3D %3D Evaluate:AB f(x)

A:

Q: Perform the following calculations for a and c:

A: Rules for determining the number of significant figures in an answer :   The result of an addition…

Q: None

A: Step 1:Scientific notation : The general representation of scientific notation is -a×10bWhere, a is…

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.