What is the only way to reduce random error in measurements?

Q: Why nanotechnology research and development of application is important?

A: Nanotechnology research and development of application is very important now as well as in future.

Q: 1. From 17M glacial acetic acid, how would you perform serial dilution to prepare 1.0 M, 0.50 M, and…

A: From 17M Glacial acetic acid solution we want to create 1000 mL of 1.0 M solution. M1V1 = M2V2…

Q: 2.37 L solution containing 1.30 mol L-1 potassium hydroxide (KOH) has been left on your bench. How…

A: Given-> Volume of KOH = 2.37L Molarity of KOH = 1.30 mole/L

Q: (b) Assume the molecule, 2H³5Cl, can be considered as a rigid rotor in a pure rotational microwave…

A: Here we are required to find the wavenumber for the absorption line for 2H35Cl

Q: Chemistry  ‏calculate the molecular weight of egg albumin if the osmosis pressure is 0.017 atm. and…

A: 5 g of egg albumin is present in 150 g of water at 25 °C to form a 1.5 cm3 solution. The osmotic…

Q: Part 2: Equilibrium Constant Determination Tube Fe(NO3)3 (mL) HSCN (mL) [Fe³+]; (M) 1 1.00.015 5.0…

A: To calculate FeSCN2+ concentration in M

Q: give chemical examples of The law of Conservation of Energy and Hess's Law

A: The explanation is given below-

Q: QUESTION 13 he following data was collected during an OBLA test. What is the OBLA Workload in Watts…

A: A question based on tools in analytical chemistry that is to be accomplished.

Q: What is the pH of the final solution if 25.0 mL of 0.10M NH3 is titrated with enough 0.10M HCl to…

A: Given,  The pH of the final solution if 25.0 mL of 0.10M NH3 is titrated with enough 0.10M HCl to…

Q: 8. Circle the descriptor that most accurately characterizes the relationship between the two…

A: Diastereomers are the non mirror images of each other.  Enantiomers are the super imposable mirror…

Q: ry products at the respective electrodes. below are standard reduction potential values: = +1.36 V…

A: NaBr and KCl is Electrolyed. Ions produced are Na+ , K+ , Cl- and Br-. As we know, in electrolysis,…

Q: Which electrode material (silicon vs glassy carbon) give reversible signals for the electrochemical…

A:

Q: Calculate the titration curve for the titration of 50.0 mL of 0.0500 M AgNO3 with 0.100 M NaCl 1) as…

A: Millimoles of Ag+=Volume of AgNO3×Molar concentration of AgNO3=50.0 mL×0.0500 M=2.500 mmol

Q: Draw an orbital diagram to represent the electronic configuration of atoms.

A: To draw orbital diagram we first have to write electronic configuration of that atom.  In this…

Q: 1.By following the 5 steps in the Oxidation Method, balance the following redox reaction. MnSO4 +…

A:

Q: What type of mechanism is exhibited in the reaction? SN1, SN2, E2, E1?

A: In the given reaction, alkyl halide is primary and Nucleophile(KCN) is a strong nucleophile. Hence,…

Q: 9. 1.0 mol of gas occupies 22.4 L at STP. What is the volume at 30.0 °C and 670 mm Hg? A. 0.037L B.…

A: Given,  Number of moles of gas = n = 1.0 mole  Volume of gas at STP = V1 = 22.4 L Final temperature…

Q: How much does a copper sphere with a radius of 12.0 inches weigh in pounds? The density of copper is…

A: Given: Radius of copper sphere = 12.0 in Density of copper = 8.96 g/cm3

Q: Write the acidic equilibrium equation for HNO₂ 04 0³ 0² 00 0² 2 3 4 5 6 7 8 9 0 0, 0, 0, 0, 0, 0, 0,…

A:

Q: How did you get the intercept's value and slope value in 1/n

A: A question based on adsorption that is to be accomplished.

Q: If the Standard Potential cell for the following AgI /Ag and I/I Was -0.152vand o, suv respectively.…

A:

Q: Consider the following data taken at 300 K for the reaction: A + 2B → C + 2 D. Which of the…

A:

Q: 16. What is the IUPAC name of the following compound? O N-ethyl-N-methylcyclopentanamine O…

A:

Q: 11. Draw a potential energy diagram for a two-step reaction in which the activation energies are 10…

A:

Q: H3C 41 2 CH3CH2ОН CH -18 CH

A: Aldehyde reacts with  alcohol to form acetal.

Q: LOH to of H removal of H₂O

A:

Q: Determine the iupac name and the draw the structure of the main product formed.

A: We have to do the following reaction and have to find the IUPAC name.

Q: A solution has a pH = 13.42. What is the concentration of H3O+ in the solution, in mol L-1?

A: Hydronium ion concentration is an important parameter of an aqueous solution. The concentration of…

Q: JJ is making miso soup. 1 bowl of soup has a volume of 375 mL. The soup has 1.00 g of table salt in…

A: Given that, mass of salt= 1.00g  volume= 375 ml = 0.375 L  then,

Q: Question 29 Which of the following atoms has the greatest electron affinity Ga

A: Electron affinity can be defined as amount of energy required or released when an electron is added…

Q: The density of acetic acid is 1.05 g/ml. * 10 ml of commercial vinegar was taken during titration…

A: Given: The density of acetic acid = 1.05 g/ml The volume of commercial vinegar taken = 10 ml The…

Q: Calculate the solubility at 25 °C of PbCrO 4 in pure water and in a 0.0050 M Na₂ CrO 4 solution.…

A: Given: Molarity of Na2CrO4 solution = 0.0050 M Ksp of PbCrO4 = 2.8×10-13 Molar mass of PbCrO4 =…

Q: The ketone produced in the process is: H diphenylketone benzaldehyde O benzeneketone benzoyl…

A:

Q: - + CH3 4131 CH3 و به شانست و اله CI + Ala3 * CH3 + Cl₂ (uv) →

A: Cl2 in presence of light give free radical substitution product on alkene

Q: Which of the following will produce a buffer solution when mixed? 50.0 mL 0.500 M HNO3 + 50.0 mL…

A: In this question, we will identify the Buffer solution after mixing two substances to each other's.…

Q: What is the IUPAC name for each of the following compounds? a.C6H5CH2(CH2)3COOH b. Br(CH2)3COOH D-CH…

A: In this question, we will give the IUPAC name of the given three compounds.  You can see the…

Q: Gold can be determined in solutions containing high concentrations of diverse ions by ICP-AES.…

A:

Q: 1. It takes 38 ml of 0.75 M NaOH solution to completely neutralize 155 ml of a sulfuric acid…

A: Dear student ,   since you have posted multiple questions we will allow to solve only first question…

Q: 5. Aluminum hydroxide reacts with sulfuric acid as follows: 2Al(OH)3(s) + 3H₂SO4(aq) → Al2(SO4)3(aq)…

A: a)  2Al(OH)3(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 6H2O(l) moles of Al(OH)3 react = 0.500 mol moles of…

Q: PROBLEM SOLVING 1.) Under constant pressure condition, a sample of hydrogen gas initially at 85°C…

A: Here we are final temperature of hydrogen gas

Q: Use quantum numbers to describe an electron in an atom.

A: Quantum numbers tells the address of electrons .

Q: Consider the reaction: NH3(g) + Cl2(g) → NH₂Cl(g) + HCl(g) Compute AH*rxn for the reaction of 100…

A: ΔH0rxn   = Σ ΔHbonds broken  - Σ ΔHbonds formed

Q: 4.16 Calculate the latent heat of vaporization of methanol at 300,K (a) By Eqs. (4.12) and (4.13).…

A:

Q: ОН O C-OH 0=C-OH O=C-ОН Br NO₂ H2C-CH3 ОН I 11 ||| IV V Rank the following acids by acid strength,…

A: In this question, we will arranged all acidic compounds from least acidic to most acidic.  You can…

Q: Question #3: 1. Calculate the molarity of an acetic acid solution if 34.57 mL of this solution are…

A: Given that -  Volume of acetic acid, CH3COOH = 34.57 mL  Volume of sodium hydroxide, NaOH = 25.19 mL…

Q: which among the three: inductive, hyperconjugation or steric effect?

A: Answer: Nucleophilic substitution is the characteristic reaction of alkyl halide that takes place…

Q: Write the condensed formula for the following alcohols and others i. tert. pentyl alcohol j.…

A: Perentheses indicate branch on chain

Q: What happens when water is ejected/expulsion from a gel? Explain

A:

Q: A solution is prepared by dissolving 4.50 g of solid NaOH in 1.00 L o 0.100 M HNO₂(aq) (Ka =…

A: The pH of the solution can be calculated as follows

Q: Select all the groups that are visible in Spectrum 6. Amine Hydroxyl Alkene

A: IR spectrum helps in identifying the functional groups present in  molecules.

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.