How many kilograms of Iron would fill a 3-liter container if the density of Fe is 7.87 g/cm³?

Q: If chlorophyll had absorption peaks at 550 nm and 650 nm rather than 425 nm and 660 nm what colour…

A: Given, Absorption peaks of chlorophyll = 425 nm and 660 nm

Q: The successive ionization energies of a certain element are The 1st ionization energy- 801 kJ/mol…

A: For the 1st question, we have to find the element from the given successive ionization energy data.…

Q: Since heat is always transferred to/from the calorimeter, propose a simple experiment to determine…

A: Experiment to determine the calorimeter constant: 1) About 50 gms of distilled water is weighed and…

Q: 2.1. Give a detailed mechanism of following reaction. Show the major product and give the IUPAC name…

A:

Q: The geometry around the double bonded C atom in this structure is? (CH3)2C=0 O A. tetrahedral OB.…

A: Given compound: (CH3)2C=O We have to find the geometry around the double-bonded C atom in this…

Q: Consider positronium, an atomic-like system made of an electron and a positron. Find the wavelengths…

A: Reduced mass of positronium, u = mm/m+m = m2/2m = m/2  where m is mass of electron or positron…

Q: What is the property of an atom that determines whether its interaction with another atom ranges…

A: Covalent bond: The chemical bond is formed by equal sharing of electrons between the two atoms is…

Q: What is the de Broglie wavelength (in meters) of a 58.1 g tennis ball when served at a velocity of…

A:

Q: A solution contains 1.19x10-2 M potassium bromide and 6.61x10-³ M potassium phosphate. Solid silver…

A: Concept based on the solubility product of the sparingly soluble salts. Based on the ksp values of…

Q: Explain the SOP for pH meter a. Selection, identification, proper use, and care of the pH meter…

A: pH meter are analytical sensors for measuring potential of hydrogen (pH).

Q: An analytical chemist is titrating 196.9 mL of a 0.1800M solution of piperidine (C-H₁0NH) with a…

A: Volume of piperidine = 196.9 mL Concentration of piperidine = 0.1800 M Volume of HNO3 = 209.3 mL…

Q: 3. Calculate the equilibrium constant for the following reaction using the pKa values given, and…

A: The acid dissociation equation for pKa = 9 and pKa = 20 are: pKa = 9 (or) Ka = 10-pKa = 1x10-9  pKa…

Q: 2SO2 + O2 → 2SO3 a. If 90.0 g of SO2 are mixed with 100.0 g of O2, which is the limiting reagent?…

A: To solve this problem we will use the given chemical reaction .

Q: Consider the following buffer system: 1.04 M H3PO4 and 0.85 M H₂PO4-. What is the pH of such a…

A: Acid and it's conjugate base form acidic buffer solution

Q: Xylometazoline hydrochloride paediatric nasal drops are formulated as a 0.05% w/v solution. What…

A:

Q: To what volume (in mL) would you need to dilute 40.0 mL of a 1.25 M solution of NaCl to make a…

A: Here given Volume (V1) = 40 ml                   Concentration ( M1) = 1.25 M…

Q: In the presence of excess OH, the Zn2+ (aq) ion forms a hydroxide complex ion, Zn(OH)42-. Calculate…

A: Given data :

Q: Draw the major product of this reaction. Include stereochemistry if applicable. Ignore byproducts. 1…

A:

Q: An analytical chemist is titrating 136.3 mL of a 0.1300M solution of ammonia (NH3) with a 0.1800M…

A: Here we required to find the pH of the solution.

Q: 2. What is the molarity of a stock solution that is 1.8g/ml and 44% HCI? CORRECT SIGNIFICANT FIGURES

A: Note: As per the guidelines, expert solution of first question has been, for the expert solution of…

Q: Identify which compound is expected to have a lower pk, value: 1

A: Given : structure of molecules. Tip : pKa value is inversely proportional to Ka value

Q: Is it easy to difficult to separate p-anisic acid and vanillin by column chromatography? (using…

A: In the given problem we need to discuss whether it is easy to separate p-anisic acid and vanillin by…

Q: What is [H3O+] in a 0.008650 M solution of perchloric acid?

A: Perchloric acid is a strong acid which completely dissociates in aqueous solution.

Q: A solution is made using 250.0 mL of ethanol (density 0.7892 g/mL) and 493.1 mL of water (density…

A:

Q: Consider the following buffer system: 1.19 M H3PO4 and 1.20 M H₂PO4-. What is the pH of such a…

A:

Q: For a hydrogen atom, calculate the energy of the photon that would be emitted for the orbital…

A: To solve this problem we have to use the Rydberg formula .

Q: Which of the alkyl halides will only produce the single [alkene] when undergoing an E2 reaction? mok…

A:

Q: b. _CaCl₂(aq) + ________K3PO4(aq) →

A: Answer: Aqueous solution of two compounds are given to us and we have to identify the reaction that…

Q: 5) Sulfur (2.99 g) was burned in a constant volume calorimeter with excess O₂(g). The temperature…

A: Here 2.99 g of sulphur  (S8) is combusted  in a bomb calorimeter  containing 845 g water so that the…

Q: Determine the number of atoms of O in 75.4 moles of Na₂Cr₂O₇.

A:

Q: Say that the probability amplitude for a photon to arrive at a detector is 1/(1+i). What is the…

A:

Q: CI For the molecule below (all protons have been shown and labeled)... Fill in the table with the…

A: Proton A B C D E δ 0.63 0.21 0.15 0.14   Integral 2H 2H 2H 6H 1H Splitting s t t s s

Q: 200.0 mL of a 0.800 M solution of KCl is diluted to 600.0 mL. What is the new concentration of the…

A: Given :  Initial concentration of KCl = 0.800 M  Initial volume of KCl = 200.0 ml  Final Volume of…

Q: The pH of a solution made from a 0.62 M acetic acid solution and a 0.72 M sodium acetate solution is…

A: Answer: In this question an acidic buffer solution of weak acid (Acetic acid) and its salt with…

Q: Propose a feasible synthesis for 2-iodo-4-methylphenolfrom2-amino-4-methylphenol. Draw the reaction…

A: Propose a feasible synthesis for 2-iodo-4-methylphenol from 2-amino-4-methylphenol. The given…

Q: A 12.69 g sample of a compound contains 4.05 g of potassium, K, 3.67 g of chlorine, Cl, and oxygen,…

A: Given the molecule is made of K, Cl, and O.  Mass of the sample taken = 12.69 g

Q: The Ka for four acids are H₂CO3: 4.5 x 10-7, HCO₂H: 1.8 × 10-4, H3C,H,O,: 7.1 x 10-4, HCN: 6.2 x…

A:

Q: HC,H,O,(aq) +K,CO3(aq)→H,O(1)+CO2(g)+KC,H,O2(aq) Express your answer as a chemical equation…

A:

Q: Which pair of the following compounds are constitutional isomers? Oland II O II and III O III and IV…

A: We have to select the pair of constitutional isomers

Q: For each given condition, predict the state of the substance (i.e., subcooled liquid, saturated…

A: We can decide the state of the given substances by closely observing the given temperature and…

Q: 4.7 Aniline can be synthesized from benzene by using correct synthetic schemes. Choose one scheme…

A: Aniline can be formed by benzene. The first step of the formation of aniline is the nitration of…

Q: 7. Consider the following alkyl bromide compounds as substrates for a SN2 reaction. Y Br X Bra Which…

A: Allyl halides react faster than alkyl halide in an SN2 reaction SN2 reaction proceeds through…

Q: The yellow-brown haze associated with smog comes from the NO molecule called

A: The yellow-brown haze associated with smog comes from the NO molecule is called as photochemical…

Q: DO 10 W 310Huops 3140/ HNO3(aq) +_ Naz (O3(aq) →

A: Answer: Complete ionic equation is the representation of chemical reaction in which all the ions and…

Q: Br CI Br + NaS CI + SNa Na₂S C4H8S2 C4H8S

A:

Q: Draw the product of the E2 reaction shown below. Include stereochemistry. Ignore any inorganic…

A: For elimination both H and Br must be antiperiplanar i.e 180° to each other . In cyclohexane chair…

Q: Value: 4 Which of the following part of the chemical formula represents the initial letter, denoting…

A: We have been asked  which is part of chemical formula that represents the initial letter, including…

Q: Write a balanced net ionic equation to show why the solubility of Ni(CN)2(s) increases in the…

A:

Q: 1.1 Give the correct IUPAC names of the following compounds: OCH3 OCH3 . Na[Ni(NH3)4(NO3)2]…

A: These are some important structure of organic as well as inorganic compounds. We will be taking help…

Q: 102- 100- 95- 90- 85- 80- 75- 70- 65- 60- 55- 50- 45- 40- 35+ 4000 Unknown C NEAT 3500 2958.34cm-1…

A: The characteristic peak of carboxylic acid in IR is that it shows a strong and wide brand for -OH…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.