Also known as absolute methods, these analytical methods rely on actual chemical reactions in order to determine the amount of an analyte. A Classical methods Instrumental methods C Scholastic methods D Investigative methods

Q: Referring to Question 2 in the Feedback Form, calculate the rate constant (k) for the reaction of Ye...

A: We would use the equation which is used to plot ln(abs) vs time plot.  

Q: A single alkyl bromide reactant theoretically yields either of the given products, depending on the ...

A: The reaction given is,  

Q: How many moles of H2(g) are generated by the complete reaction of 0.145g of Mg(s) with excess HCl(aq...

A: The balanced reaction is ., Mg (s) + 2HCl (aq) ----> MgCl2 (s) + H2 (g)  

Q: Write equations for the half-reactions that occur at the anode and cathode for the electrolysis of e...

A: For the given electrolysis problem we have to write the reaction which occur at cathode and the reac...

Q: An acid (HA) dissociates as follows: НА - H* + A minus Arrow should be interpreted as an equilibrium...

A:

Q: NSCI- Chemistry  Answer only 10-12

A: Units of measurement are necessary to measure the quantities. There are instances when the measuring...

Q: Calculate the pH of a solution that is 0.20 M HOCI and 0.88 M KOci. Kg = 3.5x10-8 pH =

A:

Q: How many grams of pyrazine (C4H4N2) would have to be dissolved in 1.50 kg of carbon tetrachloride to...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, ...

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any ...

Q: + 250 ) -->16 Co2() 18 a den Sity of 0-70 ow mang molecules of oxalgen gas f liquid Octome has a

A: Given : We have to calculate the molecules of oxygen.

Q: Vanadium atom has a radius of 121 pm and crystallizes with a BCC unit cell. Determine the number of ...

A: The number of unit cell can be determined by dividing the total volume of solid sample by the volume...

Q: ase balance the ionic equation below & 20. í Cu(NH3)4(H2O)2]2* () + _H2SO4 (2) → _CUSO4 ee) + _(NH4)...

A:

Q: For each chemical reaction listed in the first column of the table below, predict the sign (positive...

A:

Q: Absorbance Transsmission 0.730 17.8 0.641 22.8 0.400 31.8 0.340 45.2 0.211 62.0 0.076 85.4 0.020 04....

A: Given:

Q: 8. Determine the glement of unsaturation from the compounds or formulas below А. В.

A:

Q: Percentage yield %3D

A:

Q: The initial rates of a reaction at different initial concentrations of the reactants were determined...

A: Given that, A + B ----> product rate, r= k [A]m[B]n where,  m is the order of A with respect to B...

Q: Which of the following liquids has a higher surface tension-methanol (CH,OH) or dimethyl ether (CH,O...

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance. 

Q: 2p, 2p. 2p, 2p, 2p. 2p, 2р, 2р. 2р, 2p, 2p. 2py 25 2s 2s 2s Use MO theory to determine the bond orde...

A: Determine bond order of the given species---

Q: Arterial embalming may  a. arrest the cause of putrefaction b. increase the possibility of putrefa...

A: Answer is a option .

Q: How many moles of CH3OH are there in 68.0 mL of 0.400 M CH3OH?

A:

Q: When 75.06 g of metal is submerged completely, the water in a graduated cylinder rise from 40.52 mL ...

A:

Q: Obtain the moles of substance in the following. a. 2.57 g C mol b. 8.88 g Cl2 mol с. 74 g CH10 mol d...

A: Calculate moles of each substance---

Q: Hydrolysis of 2-bromo-2-methylpropane (tert-butyl bromide) yields 2-methylpropan-2-ol. (CН)СВr + 2 H...

A:

Q: An acid (HA) dissociates as follows: НА - H* + A minus Arrow should be interpreted as an equilibrium...

A:

Q: How many bananas are in 0.10 moles of bananas? 3.0 x 1023 3.0x 10 21 6.0 x 1022 6.0x 1024

A: Given,  Moles of bananas = 0.10 moles To find, molecules of bananas?? 

Q: What is matter

A: Given question is : What is matter = ? 

Q: Question: Can (-) and (+)-camphor be distinguis by their 1H NMR spectra?

A: (+) camphor is (1R, 4R)-(+)-camphor (-) camphor is (1S, 4S)-(-)-camphor

Q: 3-500 ml of a 0.2 M sodium phosphate monobasic solution is mixed with 150 ml of a 2 M sod phosphate ...

A: Given data :  sodium phosphate monobasic = NaH2PO4 Sodium phosphate dibasic = Na2HPO4 Total volume o...

Q: If a 1.065 g sample of magnesium oxide of 84.736% were treated with 50 mL of 1.017 N sulfuric acid, ...

A:   A 1.065 g magnesium oxide sample of 84.736% purity is treated with 50 mL of 1.017 N sulfuric acid...

Q: Suppose 6.22 g of chlorine, Cl2, are used to prepare dichlorine pentoxide, Cl2O5. How many moles of ...

A: Here amount of Cl2 reacts is given. From that using stoichiometric ratio we can determine how many m...

Q: Take the effective spring constant of a vibrating HCl molecule as 480 N/m. The mass of the hydrogen ...

A: The energy of any vibrating molecule is quantized in the same way as the energy of  electron in a hy...

Q: few hydrogen and oxygen molecules are introduced into a container in the quantities depicted in the ...

A:

Q: Ph Ph Ph Ph

A: These two reactions are the examples of Cross aldol condensation reaction where acetophenone reacts ...

Q: The reaction quotient for a system is 7.2 × 102. If the equilibrium constant for the system is 36, w...

A: Given, reaction quotient, Q = 7.2 × 102 equilibrium constant, Keq = 36 Q > Keq

Q: Calculate the solubility at 25 °C of BaCro, in pure water and in a 0.0140M BaCl, solution. You'll fi...

A:

Q: a-helix B-pleated sheet H. OHH OHH R HH -NCC-Ncc H ÖH H OHH %3D %3D HHO 3D %3D H H %3D 3D HHO HIGIR

A: Amino acid is the building block of protein. Protein has four kinds of structure i.e. primary, secon...

Q: 7. Calculate the heat needed at 0°C to make each of the following changes of state. Indicate whether...

A: Given: Initial temperature is 0.0 oC  

Q: I need help darwing a TLC plate  and figuring out the Rf values is the retention factor values We e...

A: The crude mixture is the component that is obtained directly from the reaction after its completion....

Q: What are the shapes of molecules with the various hybrid orbitals?

A: To give: Shapes of molecules with the various hybrid orbitals.  

Q: If NaCl is added to water, the vapor pressure of the resulting solution is reduced relative to that ...

A: There is an increase in the boiling point of solution while a decrease in the freezing point of solu...

Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair ...

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this...

Q: empirical formula?

A:

Q: Consider the reaction A+2B⇌CA+2B⇌C whose rate at 25 ∘C∘C was measured using three different sets o...

A:

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...

A:

Q: need help with finding theoretical mass of aspirin and percent yield

A: Theoretical yield is the maximum amount of product can be generated from given amount of reactant. 

Q: Which chemical reaction below results in no change in the number of electrolytes present in the solu...

A: The substances which dissociate into ions (cations and anions) when they dissolve in polar solvent l...

Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and ...

A:

Q: 4. Give the balanced equation which shows the reaction of aluminum metal with iron (II) chlorate [Fe...

A: In the reaction,  the reaction undergo single replacement reaction in which more reactive metal disp...

Q: The following reaction is at equilibrium at a pressure of 1 atm, in a closed container: C2H2(g) + 2H...

A: We have to predict the direction of reaction