Is one anomaly enough to disprove a hypothesis? If not, how many are? Why is it important that scientists use all of their results and not just some of them? What should we do if the evidence neither supports nor contradicts the hypothesis?

Q: An enzyme stock solution is 100 µg/µL. The stock solution is serially diluted 4 times by a dilution…

A: Dilution means addition of solvent to a solution in order to decrease its concentration. Dilution…

Q: Propose products (if any) and mechanisms for the following AICI,-catalyzed reactions: (a)…

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Q: For the compound below, locate the pattern we just learned (lone pair next to a n bond) and draw the…

A: Resonance structure: If the Lewis structure of a molecule or ion cannot explain by a single…

Q: For gravitational forces, select which statements are always true. Are mediated by fields Require…

A: Gravitation force is the force that exists due to the mass of objects separated by some distance.

Q: MeCN n-BuLi; Et₂C=O Me OH Xan CN Me

A: n-BuLi act as base and deprotonate from CH3CN to form -CH2CN which act as nucleophile attack to…

Q: @ OH PBr3 Et₂O Br + HOPBr2

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Q: n = 4 Express your answer as an integer. Suppose that in an alternate universe, the possible values…

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Q: Decide whether each proposed multiplication or division of measurements is possible. If it is…

A: This question is related to units of measurement. We need to predict the given mathematical…

Q: 11. When a 1.0 g of material X (molar mass = 40 g/mol) was dissolved in beaker containing 50.0 g of…

A: Given: Mass of X = 1 g Molar mass of X = 40 g/mol

Q: Which of the following statements could be considered true for both the Hsp70-mediated and GroEL-…

A: We need to find that which of the given statements could be considered true for both the…

Q: Name the following ionic compounds: 1) Cu(NO2)2 2) Fe(HCO3)2

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Q: 1.04 km to cm

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: 55.09 AL Express your answer in moles to three significant Agures.

A: To calculate moles of Al in given mass , we would use molar mass of Al.

Q: How many hydrogen atoms are in the skeletal structure of the alkane shown below?

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Q: How does one know whether or not there is a dipole moment on a molecule and if there is which atom…

A: A chemical bond in a covalent molecule is formed by the sharing of electron pair between two atoms.…

Q: I. SPECTROSCOPY 1. a) Give the number of expected signals (ignore splittings) in the ¹H and 13C NMR…

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Q: Consider the following system at equilibrium where Kc = 2.90x10-2 and AH° = 198 kJ/mol at 1150 K. 2…

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Q: : Decomposition of N₂O5 dissolved in carbon tetrachloride is a first-order reaction described 2N205…

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Q: 3. olumlu sham Me Ph Ph Ph H NaOEt Ph

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Q: At some point, the repulsive force grows so strong that the atoms stop approach and begin to move…

A: Potential energy is inversely proportional to stability.  The higher the potential energy, the lower…

Q: The answer to   (315.8 g + 4.52 g)  has how many significant figures?

A: In this question, we will find out the number of significant figures in the final answer.…

Q: Correlate experimental bond strengths and bond distances with the number of valence electrons,…

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Q: The rate of a certain reaction is given by the following rate law: rate=k[N₂] [H₂] Use this…

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Q: CROSOTTODICH Calculate average atomic weight. Calculate the atomic weight for bromine. It has two…

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Q: This question is about the imaginary measurement, the 'potter'. There are 365.000 potters in 1…

A: 1 square mile contains = 365.000 potters The number of square meters in 3.299 potters is =?

Q: How many moles of He are 221,000 He atoms?

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Q: A weak acid (pka = 6.3) is dissolved in solution with a final pH = 5.7. At this pH, some of the acid…

A: Given the pKa of the weak acid(HA), pKa = 6.3  pH of the buffer solution, pH = 5.7

Q: How many mL are in 0.50 quarts

A: A question based on dimensional analysis that is to be accomplished.

Q: Identify the molecularity of each elementary reaction in the table below. elementary reaction O₂(g)…

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Q: NEW August 17, 2020. Which of the following pairs is paired wroly? A a. Volumetric methods are…

A: From the statement we can tell that which paired wrongly.

Q: Acetylene reacts with HCl in appropriate conditions to form phenolic chloride C₂H3 Cl, which is used…

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Q: Question 3. In an experiment for the determination of the heat of proton ionization of an organic…

A: The balanced equation for the dissociation of acetic acid, CH3COOH(aq) is: CH3COOH(aq) ⇌ CH3COO-(aq)…

Q: Consider a hypothetical chemical reaction: A+B C+D (In this equation A, B, C and D stand for some…

A: 1.) The nature of reaction can be determined from the energy of reactants and products.  2.) The…

Q: The normal boiling point of water is 100.0 °C and its molar enthalpy of vaporisation is 40.67…

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Q: When Pt electrodes are used in the electrolysis of KI(aq), a number of reactions are possible at the…

A: When Pt electrodes are used in the electrolysis of KI(aq), a number of reactions are possible at the…

Q: EtO₂C .CO₂Et Br CHO NaOEt EtO₂C EtO₂C CHO

A: Here we have to synthesize  the following given  target compound  from the given starting material…

Q: In the above redox reaction, use oxidation numbers to identify the element oxidized, the element…

A: Oxidizing agent is the substance that oxidizes the other substance and itself gets reduced. Reducing…

Q: What is the hybridization of N in the following structure? O sp sp² O sp³ (+) EN-H

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Q: Rank the compounds from lowest total carbon oxidation number to highest total carbon oxidation…

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Q: You have a semipermeable membrane that rests at -70mV. You also have three ions that have…

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Q: QUESTION 3 Show how you would synthesize the epoxide starting from cyclohexanol and benzyl alcohol…

A: We have to carry out the given synthesis. Consept: Step 1: In the step cyclohexanol is converted…

Q: Calculate the volume of nitrogen gas, in liters, if the density is 0.00540g/L if the mass is…

A: Given, Density of the Nitrogen gas (d) = 0.00540 g/L Note: 100 cg = 1 g mass of the Nitrogen gas (m)…

Q: 2. A system consists of 1 mole of ideal gas is taken through the cycle shown below from (123). For…

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Q: 71.289, -6/f The volumetric pipet is labeled 10.00+ 0.02 ml Trial 1: Unknown volume (ml) The volume…

A: Here is your answer......

Q: Gas Constant R of CO2 at 825K.

A: Gas constant is a universal constant  and its value is fixed for all gases. It does not change with…

Q: MASS 100 1 5045 % of Base Peak IR %Transmittance 100 1540 50 4000 ¹H NMR 300 MHz ata T 50 M 5.0 557…

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Q: How much heat (in kJ) is required to raise the temperature of 72.0 g of water from 35°C to 103°C of…

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Q: Determine the density of a metal weighing 342.0g that displaces 10.5ml of water when placed in a…

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Q: 4. Estimate the mass in whole numbers, of each iso tope. 1 a) Phosphorus - 31 6) carbon - 14 c)…

A: It is asked to estimate th,e mass of the following isotopes. P31,C14,Am241 Atomic mass of bromine…

Q: B. Give a reasonable synthesis pathway for the transformation below. You may use any organic and…

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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.