A piece of aluminium displaces at 11.2 ML of water when placed in a graduated cylinder.  Given that aluminum has a mass of 36.2 Grams, what is the density of the aluminum?

Q: Give the Structure and IUPAC name or common name of Amide component of black and white pepper.

A: ✓It has a distinctive pungent flavor due to the presence of an alkaloid piperine. ✓piperidine is the…

Q: A chemical species that causes a systematic error in an analysis by enhancing or attenuating the…

A: The answer is attached below-

Q: The molecular formula CH40 can be converted into three-line bond (Kekulé) structures that are…

A: Given  a molecule with a formula C2H4O. We have to write it's original Kekule structure .

Q: A compound C,H100 (pay attention to the formula) gives all the following results: a) a positive…

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Q: In the experiment, which of the following statements about the complexes formed by Ni2* with ligands…

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Q: The radius of the oxygen anion (O“) at 140 pm (larger than the neutral atom, 66 pm). On the other…

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Q: What is the geometry of the synthesized thermochromic material at low temperatures? a. Octahedral O…

A: The geometry of the synthesized thermochromic material at low temperature is Square planar.…

Q: (a) . Draw and discuss the current vs. potential relationship for the reduction of metal ion in…

A: To reduce migration current  supporting electrolyte is used

Q: CAHOBR compound Which C,H, Br compound would give the following proton NMR spectrum? Ehlargements of…

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Q: An unknown sample containing mixed alkali (naoh, nahco3, or na2co3) was analyzed using the double…

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Q: 9. Bond of this energy carrier of cells is broken through what?

A: Please find the answer in step 2.   Thank you.

Q: These two structures, shown as Fischer projections, are: Br H3C- H- H-N- H- NH2 Br the same compound…

A: Stereisomers are those which have same molecular formula but different arrangement of atoms in…

Q: Which of the following is not a part of the electrode system in voltammetry? Group of answer choices…

A: Voltmeter is an instrument used for measuring electric potential difference between two points in…

Q: Write “most" under the most basic compound. Write “least" under the least basic compound. Locts NHz…

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Q: What is the standard free-energy change for the following reaction: 2C6H6 (l) + 15O2 (g) 12CO2 (g) +…

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Q: Which are true for polarography? Polarography is amperometry conducted with a dropping Hg electrode.…

A: Option C is true Statement 4 is true as we use the dropping mercury electrode as the working…

Q: 1, which is the acid?

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Q: 3. The equilibrium constant for the reaction: 250:(8) + O:(8) = 250,(8) is 2.8 x 10' at 25.0°C. a.…

A: Given, reaction : 2SO2(g) +O2(g)⇌2SO3(g) Equilibrium constant , Keq=2.8×102

Q: Find the AH for the reaction below, given the following reactions and subsequent AH values: B2H6(g)…

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Q: Draw the product of the following reaction

A: In this question we have to tell the product of the reaction.

Q: Draw the major product of this reaction? ? one equivalent Br2 Br (A) (B) Br Br Br (C) (D)

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Q: Chemistry The lines in the InP vs. 1/T graph are best-fit lines of plotted data collected from the…

A: To tell which line is for propane.

Q: ulate the value ol KC Ior ne reaction: PC|3 (g) Cl2 (g) AH = Positive PCI5 (g) + Given that when 8.4…

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Q: In the laboratory, strontium chromate (Ksp = 3.6 x 10-5) can be prepared by mixing solutions…

A: Given,  strontium chromate (Ksp = 3.6 x 10-5)       a. A solution has the following initial…

Q: Which band consists of bonding molecular orbitals?

A: Band A has filled molecular orbitals, so the electrons are transferred from the band to the upper…

Q: 8 (a) Define in words the following: (i) Ka (ii) pKa

A: Given,  (i) Ka and  (ii) pKa

Q: The name of the product of this reaction is: SOCI, CH,CH,CH,OH HO

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Q: 3. Calculate reaction AH°rxn and reaction AU°rxn for the reaction: TiCl4(1) + 2H2O(1) → TIO2(s) +…

A: Given reaction is :  TiCl4 (l) + 2H2O (l) ------> TiO2 (s) + 4HCl (g)  Calculate the standard…

Q: 4.0050 g sample of chlorinated lime was mixed with enough water to make 1000 mL. A 100 mL sx of the…

A: Find the availble chlorine content of chloronated lime

Q: Octane (C8H18) undergoes combustion according to the following thermochemical equation: 2C8H18(l) +…

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Q: 11. Consider this list of compounds: CH3ČCH;CH CH;CCH, CHSCCH3 CaHsCOH CH;COH CH,OH CH;C=N CH;C=N…

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Q: 2. A carbonate buffer of pH 10 is needed by a chemist. How many grams of Na,CO, is needed to…

A: Given,  For H2CO3 , ka=4.7×10^-11 1.5L of 0.2M NaHCO3,PH=10 Na2CO3 molecular weight =106 Calculate…

Q: In the decay series of thorium-232, thorium-232 decays to radium-224 and then to radon-220. What…

A: Given, In the decay series of thorium-232, thorium-232 decays to radium-224 and then to radon-220.

Q: Determine the Concentration of the Unknown Strong Acid In this activity you will use the virtual lab…

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Q: What information can be obtained from IR and Raman spectra and how this can be applied in COSMETIC…

A: IR active molecules are Raman inactive and vice-versa.

Q: Using the table of the weak base below, you have chosen Ammonia as your weak base in the buffer…

A: Here we can solve the given question by applying Henderson Hassel-Blach equation to buffer solution.

Q: 4. State whether these two are: CH, CH, a) the same molecule b) different compounds Cl- Br Br -Cl…

A: Detail description is given below . After r/s designation if both give same configuration then they…

Q: It has a tungsten filament and is filled with inert gas O lodine is added to inert gas O lodine is…

A: Absorption spectroscopy help us to measure absorption of radiation because of interaction of…

Q: Sketch energy diagram for a one-step reaction that is fast and highly exergonic.

A: Those reactions in which energy is released  are called exergonic reactions .

Q: -H

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Q: 1. Arrange the following compounds in increasing viscosity at 25°C (A) (B) (C) (D) H3C. H2 H2 H2 H3C…

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Q: (Q81) The oxidation number for nitrogen in a certain reaction goes from +5 to -2 and the oxidation…

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Q: Analyze the given problem and show your complete and detailed solution.  The radius of the oxygen…

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Q: pls answer number 3

A: In following 3rd question Na2HPO4 and H2PO4 calculate the weight required to prepare 200ml of buffer…

Q: A solution is prepared at 25 °C that is initially 0.42M in ammonia (NH,), a weak base with K, = 1.8…

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Q: 5. a) How many stereocenters does this compound have? CH¸Br b). How many stereoisomers are possible…

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Q: Soap detergent Emulsifying ability

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Q: Find the pH of a 0.0025 M HCl solution.

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Q: According to your solubility rules, hydroxides of Ca, Sr, and Ba are only slightly soluble in water.…

A: Substances which are able to generate OH- ions in aqueous solutions are considered as bases.…

Q: (Q84) With respect to the following unbalanced redox equation that takes place in a basic…

A: Here we are required to balance the redox reaction in basic environment

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.