0.361 g of an unknown liquid occupied a volume of 250.0 mL at 758 mm Hg pressure and 100 °C. What is its molar mass?

Q: Identify the classification of drug metabolism and specific type of reaction involved in each drug s...

A: The answer is as follows:  

Q: Calculate the pH for a 0.200M KCIO2 aqueous solution. (K, for HCIO2 is 1.1×10-2) Answer:

A: Given, Concentration of KClO2 aqueous solution = 0.200 M  Ka for HClO2 = 1.1 × 10-2 pH = ? Note: KCl...

Q: Calculate the concentration of HC6H606 in an aqueous solution of 6.34x10-2 M ascorbic acid, H2C6H606...

A:

Q: (H20)%*(aq) + 3SCN¯(aq)= Ni(SCN)5 (aq) + 6H20(1) (a) Write the Kc expression for this equilibrium. (...

A:

Q: (a) Propose a mechanism for the following reaction: кон, н,о (b) What other product is formed?

A:

Q: What is the pH of 0.78 HClO4? 3. Convert 1800 ppm of CuSO4 in percent by mass of CuSO4

A:

Q: For the buffer system in Problem no. 1, what will be the pH when (a) 15.0 ml of 0.500 M HCl and (b) ...

A:

Q: The equilibrium constant (Kc) for the reaction 2 HCUg)= H2 (g) + Cl2 (g) Kc = 4.17 x 10-34 What is t...

A:

Q: What is the wavelength (angstroms) of a photon that has an energy of J? 4.38x10-18

A:

Q: Determine the IUPAC name of the skeletal formula shown below.

A: The naming of an organic compound can be done with the help of rules given by international union of...

Q: A compound containing 5.9265 % H and 94.0735 % O has a molar mass of 34.01468 g/mol. Determine the e...

A: Rule for this is just to determine the no of each atom present

Q: 8. Give a structural formula of the product from the following reaction: - CH, (i) "OH CH,BI (i)

A:

Q: Calculate the percent composition by mass of each element (C, H, O, P) in methyl phosphate (CH5O4P

A: Determine mass % of each element in methyl phosphate ? 

Q: 5.55 Ammonia is not the only possible fertilizer. Others include urea, which can be produced by the ...

A: The given balanced equation is: CO2(g) + 2NH3(g)  -----> CO(NH2)2(s) + H2O(g) In order to find th...

Q: Calculate the molarity of a solution prepared by dissolving 1.56 g of gaseous HCl in enough water to...

A: Molarity is defined as moles of solute present in a litre of solution.

Q: For each system listed in the first column of the table below, decide (if possible) whether the chan...

A: Entropy increases when liquid or gaseous molecules get more space to move. 

Q: A hot 101.6 g lump of an unknown substance initially at Substance Specific heat (J/(g•°C)) 164.8°C i...

A: We have to equate the heat lost by the metal to the heat gain by the water to determine the specific...

Q: Which of the following islare TRUE about molar conductivity? I. The molar conductivity provides info...

A: 4th option is correct that is I, II ,III                              Or I.The molar conductivity pr...

Q: How fast is the rate of effusion of CH, compared to that of SO,? 5 2 O O O

A:

Q: In an experiment, it was determined that 59.8J was required to change the temperature of 25.0g of et...

A:

Q: Preparation of HCl solution a. Measure 20.7 ml of concentrated Hcl (37% wt HCI) using the pipet and ...

A: Solution - It is mixture of solute  and solvent. 

Q: The reaction shown takes place via radical-initiated halogenation, wherein an initiation step (not s...

A: The given reaction is followed by free radical mechanism (bromination) of alkane.

Q: a. Add arrows to the boxed structure that show the electron movement in the decarboxylation of malon...

A:

Q: Calculations involving chemical formulas and equations. Analyze and provide complete solutions to th...

A:

Q: 6. 479.06 K 7. C = 2.998 x 108 m/s 8. 1000 L per m3 9. 7 mmol 10. 956 torr

A:

Q: The equilibrium constant Kc for the reaction fructose-1,6-diphosphate = glyceraldehyde-3-phosphate +...

A:

Q: Please envision this table like it was one long table. (I had to make it two because it hung out of ...

A: The molecular geometry table, the electronic geometry table and the dipole table are corect.

Q: Calculate the pH of 1.055% (by mass) HCl (MM=36.46) solution. Assume density of the solution is 1.01...

A: Mass=1.055% Density =1.010 g/ml

Q: Which is the reductant and oxidant in the reaction? 2 KMNO4 + 5 C6H806+ 3 H2SO4 – 2 MnS04 + K2SO4 + ...

A: The addition of electrons or decreases in the oxidation state is known as a reduction reaction and t...

Q: 9) A solution is prepared by mixing 100.0 g of water, H20, and 100.0 g of ethanol, C2H5OH. Determine...

A:

Q: 6.8 What mass of butane in grams is necessary to produce 1.5 X 10' kJ of heat? What mass of CO2 is p...

A: The balanced chemical equation for the combustion of methane is, C4H10+132O2→4CO2 + 5H2O 58 g of but...

Q: In the laboratory you dissolve 23.7 g of nickel(II) sulfate in a volumetric flask and add water to a...

A: Molarity is defined as the number of moles of solute in per litre of a solution.  

Q: Define 1. Stoichiometry 2 Formula mass

A: Define  1. Stoichiometry  2 Formula mass

Q: Help needed

A: The reaction is., H2CO3 <===> [HCO3-] + [H3O+] Ka for given acid = 4.3 × 10-7  Concentration o...

Q: One of the major commercial uses of sulfuric acid is the production of phosphoric acid and calcium s...

A:

Q: What CrO42- concentration is required to initiate precipitation of Ag2CrO4 from a solution that is 0...

A: Solubility can be defined as maximum amount of solute that can be dissolved in solvent so as to obta...

Q: F. The specific heat capacities for several substances are shown in the table. Substance Specific He...

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific hea...

Q: Using specific heat capacity to find temperature change A chemical reaction takes place inside a fla...

A:

Q: 2. CaCO3 (s) 2 CaO (s) + CO2 (g). At 1000 K, the equilibrium pressure of CO2 =0.39 atm. wwww C (s) +...

A:

Q: Consider the reaction: CD → c2* + B2-; Ksp = 2.4 x 10-8 What is AG' at 25 *C? O 8.2 kJ/mol O 6.21 x ...

A: ∆G and Ksp are related as ∆G=-RTlnKspR = 8.314 J/K.molT = absolute temperature  

Q: What concentration of potassium hydroxide is needed to give an aqueous solution with a pH of 9.910? ...

A: Given data, pH of KOH = 9.910  [KOH] = ?

Q: Write the equilibrium expression of the following chemical reactions: 1. N2O4(g) ⇌ NO2(g) 2. H2O(l...

A:

Q: Lalisa and Labmi were tasked to design a new and efficient method of producing black inks. To determ...

A: Retardation or retention factor (Rf) value is the ratio of distance traveled by the analyte to that ...

Q: A sample of helium gas at a pressure of 786 mm Hg and a temperature of 26 °C, occupies a volume of 6...

A: Given :-  Initial temperature (T1) = 26°C  Initial volume (V1) = 6.59 L  Final temperature (T2) = -6...

Q: 11) JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from the furnace, JJ w...

A: Given:- 11) JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from thefurnac...

Q: Sketch a titration curve for the following amino acids and indicate the pKa values for all titratabl...

A: Answer -  

Q: Use the kinetic theory to explain the reason materials are more dense in the solid state than in the...

A: The solution is as follows:  

Q: Which direction would the equilibrium shift if heat is added to the reaction? Co2 cobalt(ii) sulfate...

A:

Q: Determine the volume occupied by 4.26 grams of Carbon dioxide gas (CO,) at STP? * O 2.17 liters O 3....

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: paper chromatography

A: In this question we have to explain that the arrangement of the above compounds in increasing Rf if ...

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.