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Q: pls help q(A) and (D)

A: The SC unit cell is shown below. The FCC unit cell is shown below. The BCC unit cell is shown belo...

Q: What volume of carbon dioxide is produced when 130 liters of carbon monoxide react according to the ...

A: From given,we know PV=nRT n= PV/RT so V=nRT/P  

Q: Calculate the pH of a 3.534 M solution of potassium hydroxide.

A: concentration of OH- will be same as KOH concentration because it is a strong base. then find pOH an...

Q: Question 3 and 4

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Q: On your own paper, show your work as you solve these problems. Your answers must include a unit and ...

A: We know that , Moles of substance = Mass of substance / molar mass of substance   By using this we c...

Q: A very dilute solution contains 370.4mg of fructose (nonelectrolyte , MM = 180.16 g/mol) in 1.189 L ...

A: Mass of fructose, W = 370.4 mg = 0.3704 g Molecular weight of fructose, Mwt = 180.16 g/mol Moles of ...

Q: C₂H₄ + 3O₂ → 2CO₂ + 2H₂O If you start with 45.9 g of C₂H₄, and excess O₂, what mass of CO₂ will be p...

A: Given :- mass of C2H4 = 45.9 g  To calculate :- mass of CO2 (in g) 

Q: The ideal gas law relates the amount of gas present to its pressure, volume, and temperature. The id...

A: The effect of pressure and temperature is measured by Boyle’s law and Charles's law respectively. Th...

Q: An aqueous solution of hydrochloric acid, HCl has a concentration of 7.21 M and a density of 1.23g/m...

A: The ratio of mass of particular compound to the mass of solution multiply by 100 is known as percent...

Q: Which acid conjugate base pair would be the best choice to make a pH = 4.00 buffer? a. CH3CH(OH)CO2...

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Q: How many moles of solute are present in 75.0 grams of an aqueous solution that is 1.5% sucrose (C12H...

A: Mass percent :- The mass of solute present in 100 grams of solution is called as mass percent of sol...

Q: Answer the 3rd question

A: que 3  - For an effective collision , the molecule must possess some min. amount of energy to result...

Q: MULTIPLE CHOICE QUESTION Starting with 9.2 moles of 02 , how many moles of H2S will you need? 13.8 m...

A:  2 H2S + 3 O2 ---> 2 SO2 + 2 H2O By stoichiometric ratios, In this case, our ratio is that for ev...

Q: 3

A: pOH = 14 - pH  pOH = 14 - 11.29 pOH = 2.71  pOH = -log[OH-]  [OH-] = 10^-pOH  [OH-] = 10^-2.71  [OH-...

Q: Write the unbalanced chemical equation for the following chemical reaction: An industrial process us...

A: Boron trioxide + Magnesium -------> Boron + magnesium oxide  Here, boron trioxide and magnesium a...

Q: 1. Determine the amount of heat, in kJ,  released by the combustion reaction. 2. The combustion reac...

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Q: A sample of iron absorbs 67.5 J of heat, upon which the temperature of the sample increases from 21....

A: Dear student I have given answer to your question in the image format.

Q: Of the following, which is the strongest acid?     HIO3     HIO2     HIO     ...

A: Given acids are oxoacid, whose acidity depends on oxidation number of halogen (Iodine in this case)....

Q: What is the pH of a 1.0 L buffer made with 0.300 mol of HF (Ka = 6.8 × 10⁻⁴) and 0.200 mol of NaF to...

A: In this question,  we have to calculate the pH value of solution by the help of "Henderson - Hasselb...

Q: Suppose a  500.mL  flask is filled with  1.0mol  of  Cl2 ,  1.3mol  of  CHCl3  and  0.50m...

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Q: A sample of helium gas occupies 14.7 L at 23°C and 0.956 atm. What volume will it occupy at 40°C and...

A: Given, Initial volume occupied by helium gas(V1) is --- 14.7L Initial temperature(T1) is ---- 23oC  ...

Q: Name 4 chemical chifts, their multiplicity and their assignments using the following NMR shift.

A: Starting from 0 i.e. the right hand side. The very first peak is nearly at 2.1 to 2.2 which correspo...

Q: Balance the equation below, which uses imaginary elements (they still follow the usual convention – ...

A: Dear student I have given answer to your question in the image format.

Q: Write the formula of the conjugate base of the Brønsted-Lowry acid, N₂H₅⁺

A: Bronsted-Lowry Acid : N2H5+  Conjugate Base = ? 

Q: Which set(s) all the quantum numbers shown below correspond to an actual orbital?

A:

Q: Plz do Asap....!

A: The NMR spectroscopy is a spectroscopic technique that detects the presence of different types of pr...

Q: Calculate the theoretical yield of the product in moles for each of the initial quantities of reacta...

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Q: Which of the electron transitions shown below is most likely to produce a red colored light? A B C +...

A: The question is related to Balmer lines of Hydrogen spectrum. The answer is option A) n=3 to n=2

Q: How much heat is required to convert 25g of ice at -6.0 ˚C to water vapor at 102 ˚C? (ΔHfus = 6.02kJ...

A: We know that The specific heat equation is  Q = mC∆T And the heat of fusion/vaporization equation Q...

Q: Calculate the pH of 100.0 mL of a buffer that is 0.0800 M  NH4Cl and 0.135 M  NH3 before and after t...

A: NH4Cl is salt and NH3 is a base. pKa of NH3 = 4.75

Q: Assign oxidation numbers to the atoms in each of the following species: NH4NO3, CaMgSiO4, Fe(CN)6 , ...

A: Oxidation number is the represent the number of electrons lost or gained by the atoms of an element ...

Q: The osmoticpressure of an aqueous solution of certain protein was measured to determine its molar ma...

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Q: A. Calculate the pH of a 0.0306 M solution of calcium hydroxide. B. Is H3N an acide, basic, neutral ...

A: A.  Concentration of calcium hydroxide = 0.0306M 1 mol Ca(OH) 2 has 2 mol OH- ions Now, concentratio...

Q: A buffer at pH = 9.00 could be made by combining which of the following (choose all that apply) a....

A: A buffer Solution  which consists of a mixture containing a weak acid and the conjugate base of the ...

Q: Which of the following is NOT a conjugate acid-base pair (or base/acid pair)?   a. H2SO4/SO42-...

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Q: Grain boundaries are (1) chemically reactive than the grains themselves because of the (2) energy st...

A: The term "grain" refers to the crystalline materials. The interface between the two crystallites pre...

Q: Chemistry Question

A: Isoelectronic means two or more ions / atoms have same number of electrons.  1- O-1  : ( atmic numbe...

Q: At high temperature hydrogen molecules split into hydrogen atoms look at picture. Consider a case w...

A: N1 = 1 N2 = 2

Q: The rate constant for this first-order reaction is 0.500 s-l at 400 °C. A → products How long, in se...

A: This reaction is first order reaction.  

Q: Which of the following has the lowest electronegativity?  (a)Sodium (Na) (b)Carbon (C) (c) All of t...

A: The Hydrogen is act as electronegative as well as elecropositive in nature on different conditions ....

Q: Given that the volume of a rectangular object is computed is given by the formula V = l × w × h, wha...

A: The shape of the given object is = rectangular The volume of the object is =? The dimension of the m...

Q: The pressure of a sample of helium is 2.0 atm in a 200-mL container. If the container is compressed ...

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Q: What is the molarity (M) of a solution prepared by dissolving 48.06g of (58.45g / mol) in 382.6 g of...

A: The Molarity of the solution is the number of moles of solute present in one liter of solution. It i...

Q: The calcium from a sample of limestone weighing 607.4 mg  was precipitated as CaC2O4 (128.10 g/mol) ...

A: The mass of the limestone sample is = 607.4 mg The mass of CaCO3 formed by ignition is = 246.7 mg Th...

Q: 9. How many grams of the insecticide calcium chlorate must be measured if a sample is to contain 4.1...

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the ra...

Q: The reaction   2X(g)+3Y(g)↽−−⇀ Z(g)                                  Kc=0.0112 M−4   occurs at 457K....

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Q: Carborundum is silicon carbide, SiC, a very hard material used as an abrasive on sandpaper and in ot...

A: The number of moles is a ratio of the mass of a substance to the molar mass of the substance. Molari...

Q: Which acid(s) could you use to make a buffer with pH = 10.20 (choose all that would work)a. NH4+b. H...

A: Given :Different type of acid.  To find : Acids that are used to make butter with PH = 10.20 Solutio...

Q: K2SO4 in order to prepare a 1 N of the solution. • What are the specifications of primary standard s...

A: 1 N standard Solution means, 1 gram Equivalent of Solute potassium sulfate present in 1000 mL of the...

Alkanes and Cycloalkanes

Alkanes are saturated organic compounds which are made up of C and H atoms. Alkanes have the general formula of CnH2n+2. Alkane contains sp3 hybridized carbon atoms with four sigmas (σ) bonds & every hydrogen atom is connected with one of the carbon atoms. The size of the alkane could be determined by the number of carbon atoms located in it.