The activation energy for the reaction 2 HI(g) ? H2 + I2 (g) is 209.5 kJ mol–1 at 581K.Calculate the fraction of molecules of reactants having energy equal to or greater than activation energy?

Q: An analytical chemist weighs out 0.115 g of an unknown monoprotic acid into a 250 mL volumetric flas...

A: Given data,Mass of acid=0.115gMolarity of NaOH=0.070MVolume of NaOH=17.0mLVolume of flask=250mL

Q: A supply of glacial acetic acid has absorbed water from the air. It must be assayed to determine the...

A: Given data,Mass of sample=2.00gMolarity of NaOH=0.218MVolume of NaOH=28.25mL=0.02825LTotal volume of...

Q: A trisubstituted cyclohexane compound is given in its chair conformation. Draw the corresponding pla...

A:

Q: 3. Draw a mechanism to show the arrow pushing for each of the transformations shown below. NO: NO, O...

A:

Q: Static electricity is observed when whic part of the atom is transferred? a. Protons b. Neutrons I E...

A: Static electricity is observed when electrons are transferred .  Naturally occurring static is obser...

Q: Example 11.4 According to the periodic table of elements, see Appendix C, the molar mass of copper i...

A:

Q: Shrek is creating swamp gas traps to keep people out of his swamp, he is fictional so he does not us...

A: Boyle's law At constant pressure, pressure of a gas varies inversely with volume. The equation is ; ...

Q: Calculate the equilibrium hydroxide ion concentration of 0.100 M NaNO2, sodium nitrite solution. 2.2...

A:

Q: 2) Mohr's method uses the potassium chromate (K2CrO4) as indicator and this indicator makes the equi...

A: The question is based on the concept of quantitative analysis. we have determined percentage chlorid...

Q: Q3/ calculate the mass of calcium chloride of the dissolved in 30 ml of D.W from solution with conce...

A:                                  

Q: 33.82 ml of an HNO, solution of unknown molarity requires 29,95 ml of 0.100M NaOH solution to be neu...

A: The objective of the question is to calculate the concentration of the HNO3 solution when the given ...

Q: Which muscle has a convergent pattern of fascicles?a. biceps brachiib. gluteus maximusc. pectoralis ...

A: Given answer of choices, a. biceps brachiib. gluteus maximusc. pectoralis majord. rectus femoris

Q: 4) N, N- diethyl butanamide 5) Benzoic acid

A: 4. N, N-diethyl butanamide  5. Benzoic acid  6. Propyl ethanoate  

Q: 3. Exposing yourself to the sun means exposure to many types of electromagnetic radiation: UV, visib...

A: Interpretation-  To explain which of these radiation would you expect to most harmful when sun expos...

Q: Draw a reasonable arrow pushing mechanism for this reaction

A: This is the deprotection of chiral auxiliary by LiAlH4.

Q: if all the N in 10.0 mmols urea, CO(NH2)2, is converted to NH4HSO4, and if, with excess NaOH, the NH...

A:

Q: How many moles of aluminum are needed to react completely with 1.20 mol of iron (II) oxide? What kin...

A: 2Al + 3FeO -------> Al2O3 + 3Fe 

Q: A supply of glacial acetic acid has absorbed water from the air. It must be assayed to determine the...

A:

Q: Name each of the following compounds according to IUPAC nomenclatures (а) (CH),СНCН,CH-CH,Br (b) (CH...

A: The question is based on the concept of IUPAC naming of the compounds. we have to systematically nam...

Q: A Bohr-like model of a He* ion has the following energy levels: En = (-8.72 x 10-18J],n = 1,2, 3, .....

A: The ionization energy is the amount of energy required to remove electron from outermost shell of a ...

Q: In the following reaction calculate 1 point and find the normality when it is 1.0 M H3PO4? Given (H=...

A:

Q: V = 375 mL at 1.15 atm;  V = ? at 775 mmHg?

A:

Q: hi, i just need help solving d-g. Thankyou !

A: d) The general electronic configuration of group 2 elements is ns2. Thus they lose two e- and form d...

Q: What is the empirical formula and molecular formula of a compound containing 43.38% Na, 11.33% C and...

A: Given :- percentage composition of Na = 43.38 %  percentage composition of C = 11.33 %  percentage c...

Q: Describe unique charachteristics of gas particles, give at least two pieces of information.

A: Characteristics  of Gas particle  

Q: A hydrogen atom, which has one electron, has a radius 0.7 x 10-10 m. The radius of its nucleus is ab...

A: Atomic number of hydrogen atom is 1 and consists one proton in the nucleus. And one electron is revo...

Q: Help 9 and 10 please

A:

Q: Boiling point is a temperature where the liquid just changes to vapour state. Select one: O True O F...

A: Boiling point : It is the temperature where the vapour pressure of the liquid becomes equal to the  ...

Q: Propose a product and an arrow-pushing mechanism for the following reactions.

A: The carbon next to the functional group is termed as the alpha carbon and the hydrogen bonded to the...

Q: Poly(benzylglutamate), PBLG, is a common polymer (in our lab, anyway!). Its partial specific volume ...

A: Given that  Specific volume is = 0.791ml/g  PBLG= 0.p3925g DMF = 0.12823g    

Q: rovide reagents/conditions to accomplish the following syntheses. More than one step is required in ...

A: More than one step required following conversation

Q: 5. Write the chemical formula that results when the following pairs of ions combine to form an ionic...

A: With the help of Oxidation state we can write chemical formula of ionic Compound. we write the compo...

Q: __1__Na3PO4 + ___ KOH ___ NaOH + ___ K3PO4

A: The question is based on the concept of inorganic reactions. we have been given a reaction. we have ...

Q: Propose a product and an arrow-pushing mechanism for the following reactions.

A: Organic synthesis involves the process of preparation, isolation and characterization of organic mol...

Q: abel the foliowing image, some options may be used more than once, or not at all. unit?, : Pressure ...

A: In the phase diagram, The triple point of any substance is the condition of pressure, volume, and te...

Q: distinguish between ions, electrolytes, and free radicals;and

A: The difference between ion, electrolytes and free radicals has to be given.

Q: why are H bonds the strongest example of a dipole dipole bond?

A: The H-bonding is a special type of dipole-dipole interaction. In some of the molecules containing H ...

Q: A mixture of 0.2000 mol of CO2 , 0.1000 mol of H2 and 0.1600 mol of H2O is placed in a 2.000 L      ...

A: According to ideal gas law, PV = nRT where P = partial pressure of gas V = volume of vessel = 2 L n ...

Q: pressure be highest?

A: Answer is = All have the same pressure                                                              ...

Q: a) Please indicate whether the following molecules are aromatic, non-aromatic, or anti-aromatic. In ...

A: Interpretation-  To determine the following molecule are aromatic , non - aromatic and anti-aromatic...

Q: Gas b. a SO, 38.91 3.904 x 10 -3.105 x 10 8.606 x 109 SO3 48.50 9.188 x 10 -8.540 x 105 32.40 x 10 O...

A:

Q: In the following reaction calculate 1 point and find the normality when it is 1.0 M H3PO4? Given (H=...

A: For the molecule, the relation between Normality (N) and Molarity is as follows

Q: How many grams of glycine (C2H5NO2) are present in 100.0 mL of 0.015 M glycine solution?

A:

Q: 1) Please find the H NMR peaks of this structure. The non-equivalent protons should be labeled Find ...

A: Chemical shift: It is the difference between the resonant frequency of protons of a given compound a...

Q: bond, show the direction of polarity by selecting the correct partial charges. I-Br F-I F-Br polar b...

A:

Q: CI cat. AICI3 Et Et

A: Friedelcraft acylation involves the formation of acyl compounds. An. AlCl3 is used as catalyst in mo...

Q: A chemical reaction takes place in a container of cross-sectional area 100cm^2. As a result of the r...

A:

Q: CH3CH2CH2CHO ماهو الاسم الصحيح ل لمركب butanal butanoic acid O propylaldehyde butanone O

A: The question is based on the concept of IUPAC naming of the organic compound. we need to  write syst...

Q: A sample of neon occupies a volume of 461 mL at 1 atm. What will be the volume of the neon when the ...

A:

Q: Describe the solubility of CaF2 in each of the following solutions compared to its solubility in wat...

A: A) NaCl dissociated as Na+ and Cl-. There are no common ion as CaF2 so don't exhibit any common ion ...