Question 4 Consider this formula. Z = X = Y If z = 4.0 and y = 9.2, what is the value of x? Express your answer to the tenths place (i.e., one digit after the decimal point). 2.3 x

Q: Calculate the molecular formula for a compound with molecular mass of 140, using the Rule of…

A: Molecular mass of a compound = 140 g/mol The compounds contain only carbon, hydrogen and nitrogen…

Q: - - - 1. The correct synthesis of n-octane would involve which of the following reactions? a.…

A:

Q: chloro-2,4-dinitrobenzene. Suppose you had produced 3.00 g of pure 2,4-dnph from the initial 5.00 g…

A: M. W. of 1, chloro-2,4-dinitrobenzene = 202.54 g/mol M.W. of dinitrophenol (dnph) = 184.11  g/mol 1…

Q: Choose the letter of the correct answer 1) The relationship known as Charles Law is valid:      a)…

A: 1. Charles's Law states that the volume of a gas is directly proportional to its temperature, as…

Q: 1. Two liters of N2 at 0°C and 5 atm pressure are expanded isothermally against a constant pressure…

A: Given, Volume of N2 = 2 L Temperature = 0°C Pressure = 5 atm W=? , ∆E=? , Q=? , ∆H=? Note: Since you…

Q: A plot of a Langmuir adsorption isotherm (C/q, vs 1/Qo) for an adsorption process, gives a slope of…

A: Langmuir adsorption isothermThe Langmuir equation can be expressed as follows CeQe = 1bQo +…

Q: Q3: ( f) 1.61 g of unknown volatile liquid has been vaporization in conical flask with volume 200 ml…

A: Given,  Mass of unknown compund= 1.61 g  Volume, V = 200 mL  Temperature, T = 107 °C  Pressure,. P =…

Q: 요 Mechanismus OEt NaBH4 EtOH 5

A: NaBH4 is reducing group and it selectively reduced keto group (C=O) to alcohol (-OH) group. It will…

Q: 11) Which type of compound does not contain a carbonyl group? A) ketone B) aldehyde C) amine D)…

A:

Q: 12) If 15.00 ml. of 0.1M NaOH solution is needed to reach the end point of 10 mL HiPO4. Then the…

A: 12) Volume of NaOH = 15.00 ml Molarity of NaOH = 0.1M Volume of H3PO4 = 10.0 mL

Q: 1.MnO4−(aq)+Br−(aq)→MnO2(s)+BrO3−(aq) (basic solution) 2.Pb(OH)42−(aq)+ClO−(aq)→PbO2(s)+Cl−(aq)…

A: In the given question we have to balance the both Redox reaction ,we can see that in a reaction one…

Q: Do this in clear word's and details step 1: tell me how cesium goes with the atomic radius trend…

A: Atomic radius : it means the size of an  tatom.  Ionization energy : the minimum amount of energy is…

Q: Methane gas and chlorine gas react to form hydrogen chloride gas and carbon tetrachloride gas. What…

A: Here, it is given that methane gas and chlorine gas react to form hydrogen chloride gas and carbon…

Q: 13. Suppose you are going to add 450 mL of a 0.10 mol/L hydrochloric acid, HCl(aq), solution to 250…

A:

Q: What is the change in enthalpy when 0.600 moles of H₂O are produced according to the following…

A: Here the given reaction is ;  B2H6(g) + 3O2 --> B2O3(g) + 3H2O (g )  Here boron hydride react…

Q: What quantity in moles of H₂ are required to give off 2801 kJ of heat in the following reaction? N₂…

A: Here we have to determine the moles of H2 gas required to produce 2801Kj of heat in the following…

Q: The probability that a certain nucleus undergoes radioactive decay in a unit time is called decay…

A: The detailed solution is given in the following step.

Q: For a first order reaction A → P, calculate the time (min) required for the initial concentration…

A:

Q: How much heat is needed to melt 10.0 grams of ice at -10°C until it is water at 10°C? a.+3963j…

A: In these type of questions, we have to calculate the overall heat change i.e., heat required to…

Q: 7) the indicator that used in moher method MOHR method is a) Eriochrome Black T b) murxide c) ferric…

A:

Q: Analyse the following 13C NMR spectrum of the…

A:

Q: Identify the correct enantiomer for the following: HS HS HO H₂N H NH₂ H NH2 OH OH SH

A:

Q: A 20.0 mL sample of commercial bleach was diluted with water to a 250.0 mL volumetric flask. A 50.0…

A:

Q: What is the change in enthalpy when 0.350 moles of B₂H6 react with excess O₂ according to the…

A: The given reaction is ;  B2H6(g) + 3O2(g) --> B2O3(g) + 3H2O  And enthalpy change of that given…

Q: Let N be the number of atoms of Cs137= 7.3*10^22 atoms. Also, let λs be the “probability of Cs137…

A: The product of N & λs is the number of decays per second, which is the activity of the sample.…

Q: Balance the following redox reaction using the change in oxidation number method by providing the…

A:

Q: An arctic weather balloon is filled with 6.50 L of helium gas inside a prep shed. The temperature…

A:

Q: A flask containing 125 mL of hexanes is boiled at about 342 K. What happens during this process? The…

A: Temperature = 342 K = 342 - 273.15 = 68.85 ⁰C Boiling point of hexane: 68.73 ⁰C So, the temperature…

Q: A sample of gas occupies a volume of 3.33 L at STP conditions. The entire contents are transferred…

A:

Q: 1. You find a skill in a nearby tribe ancient burial site and with the telp of a spectrometer, you…

A: Half-life of carbon -14 = 5730 years Skull contains 9 % of C-14 found in a modern skull Half-life of…

Q: dentify diene and dienophile for each questions a) ? b) ? G 9) ? d) ? Q CN COOEt COOEt CF3 CF3

A: These all reactions are Diels-Alder reactions because diene react with dienophile on heating…

Q: What does stoichiometry mean

A:

Q: The name of the following molecule is: H

A:

Q: Predict the boiling points of the distillates in the ff:  Also, explain why only one compound…

A:

Q: The first order reaction A → B, has k = 5.25 s-1. If [A]o = 0.600 M, how long (in s) will it take…

A:

Q: 4) Ag+ Ct AgCl. This is an example of a) acid-base titration. b) precipitation titration. c) redox…

A:

Q: What is the pH of a solution, if there is a concentration of 0.0006 g/L of hydrogen ions?

A:

Q: Calculate the amount of heat needed to boil 48.6 g of water (H₂O), beginning from a temperature of…

A: Given that,  The mass of water is m = 48.6 g. The initial temperature of the water is T1 = 55.2°C.…

Q: MISSED THIS? Read Section 14.5. You can click on the Review link to access the section in your eText…

A:

Q: How many milliliters of O2 are consumed in the complete combustion of a sample of hexane, C6H14, if…

A:

Q: b A ol D BI E C € E Hard and brittle Soft and tough Hard and tough Hard and strong Soft and weak…

A: •Here is the properties of given materials:-

Q: 6) The indicator that used in Fjan method is a) dichlorofluorescein b) murxide c) ferric ions (Fe)…

A: Fajan's method : In this method we uses the reaction between the precipitate formed and indicator.…

Q: Q15. Which chemical test would give a positive test for the presence of a carbonyl containing…

A: Answer 15 :- The organic compound which contains -CHO group and -CO group as the functional group in…

Q: Aniline and Sulfuric Acid reacts to form a salt. Is it an acid salt or a basic salt? Explain

A: AS PER THE ANSWERING GUIDELINES I CAN ANSWER ONLY THE FIRST ONE,IF YOU WANT THE REST POST THEM…

Q: 10) Which of these statements is not TRUE? a-Phenolephtalene indicator pink in basic media b-Methyl…

A: A) true In acid-base titrations, phenolphthalein is commonly employed as an indicator. It turns…

Q: Determine the i) number of REDs, ii) electronic geometry, iii) molecular geometry & bond angles, and…

A: The given molecule is BF3 We have to find, Electronic Geometry Molecular geometry & bond angle…

Q: A cylinder is filled with 10.0 L of gas and a piston is put into it. The initial pressure of the gas…

A:

Q: What quantity in moles of MnO3 are produced when 4.30 kg of oxygen gas completely reacts according…

A: Using mole concept easily determines how much moles of reactant is used and how much moles of…

Q: 6. Electrical signal transmission in nerve cells occurs through the mechanism of Nations entering…

A: Charge of each Na ion (Na+) = 1.002 x 10-19 C

Q: 1,2,3,4,5-penta-di-ene

A:

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.