In a titration experiment, a 0.55 M of hydrochloric acid titrant solution is used to neutralize 30.0 mL sodium hydroxide solution. The initial reading on the buret was 0.72 mL. After the titration, the buret reading was 22.74 mL. What is the concentration of sodium hydroxide solution? Choices: 0.4037 0.4169 0.7256 0.7493

Q: Under which conditions is a reaction non-spontaneous at all temperatures, according to ΔGΔΗ-ΤΔS ΔS0…

A: for spontaneous reactions ; ∆G = -ve  for non-spontaneous reactions ; ∆G = +ve

Q: answer of this question is E please explain why is it. 15. Which of the following esters cannot…

A: Claisen condensation reaction :

Q: Which is a type of secondary battery that can store a large amounts of charge and produces large…

A: Here we have to predict the secondary cell that can store large amount charge and produce large…

Q: The following statements are true, EXCEPT: (a) The purpose of a titration is to determine the…

A: Titration is a analytical method to fnd out the unknown concentration of a solution by using another…

Q: 1) Listen What is the molecular geometry of each carbon atom in an alkane? Linear Tetrahedral O…

A: When there is carbon carbon single bond only in the compound then it is called as alkane.  When…

Q: Q. 10.0 mol of nitrogen gas at 300k is contained in a 1,00L container. ( Nitrogen (N2) 9as is…

A: Given that -  Moles of nitrogen gas = 10.0 mole  Temperature, T = 300 K  Initial container volume,…

Q: Half-Life 1189 years Decay Rate, k Complete the table shown to the right for the half-life of a…

A: Given, Half life = 1189 years Decay rate, k = ?

Q: Phosphorus-32 is a radioisotope used in the treatment of leukemia and pancreatic cancer. If the…

A: Given, Phosphorus-32 in a sample decreases from 1.2g to 0.30g in 28 days . We have to calculate half…

Q: Give the IUPAC name for the 2 compounds

A: The IUPAC name of the compound can be written on the basis of the number of carbon atoms in the main…

Q: Write a chemical equation in the form A + B = C + D

A: In equation  A+B→C+D  A and B are reactant ,C and D are product

Q: Calculate the potential for the electrochemical cell made from zinc and magnesium and their…

A:

Q: 18.) The Joule-Thompson Coefficient of a certain gas is 10.9 K MPa-1. If a pressure change of 53 adi…

A: This effect is arise when a thermodynamical system  containing solution is expanded from high…

Q: What is the oxidation number of carbon in the oxalate ion?

A:

Q: Consider these two reactions: Reaction 1: 20F2(g) O2(g) + 2 F2(g) ΔΗ-49.4 k Reaction 2: N2(8) +…

A:

Q: A 0.100 M ethylamine solution (CH3CH2NH2) has a pH of 11.82. Find the value of the Kb of this base.

A: We have to predict the Kb for the base.

Q: what is acid-base equilibrium or electrochemistry?

A: Acids and bases have a chemical equilibrium in solution. At chemical equilibrium, the products and…

Q: 2. How much heat is needed to change the temperature of 4kg Iron from 15 °C to 28°C?

A:

Q: QUESTION 7 If the value of Kc for a given reaction at a given temperature is a small number, the…

A: Ans is : b

Q: Which of the following is an Arrhenius base? A KNO, 3. B H,SO, CHO 6 12 6 D КОН

A:

Q: 2.) Draw the condensed structures (NOT line structures) for the following reactions of alcohols. ÇH3…

A: Detail mechanistic pathway is given below to find out the product

Q: re. What could be don. tion? vater -ve potassium chloride

A: Boiling point is the temperature at which vapor pressure of liquid is equals to atmospheric…

Q: Which of the following statements relating to indirect radiochemical interactions is INCORRECT?

A: D option is incorrect

Q: mass of lactic acid is

A:

Q: Q.6. (a) Compare and contrast main features of Orgel and Tanabe-Sugano diagrams. Mention the ground…

A:

Q: )Listen Which metal can be added to steel to form an alloy, which is resistant to corrosion. known…

A: Stainless steel is an alloy of iron, chromium and nickel.

Q: electrodes. A.) Which should be the anode and which is the cathode? Explain. B. Write the…

A: A) in voltaic cell , Oxidation takes place at anode and reduction takes place at cathode.  Anode =…

Q: You want to prepare a buffer solution with pH equal to 3. How many grams of NaF (41.99 g/mol) should…

A: pH of a buffer solution is equals to 3. Volume of HF = 250 mLConcentration of HF = 0.350 MWe have to…

Q: Name this compound, including stereochemistry: HOĆ, CH;CH;CH3OH H

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please…

Q: a) Explain the differences between nuclear fission and nuclear fusion. By which of these two nuclear…

A: Radioactive nucleus generally participate in nuclear fission and nuclear fusion reaction.…

Q: If the same mass of Na2SO4 (MW: 142 g/mol) and K2SO4 (MW: 174 g/mol) were weighed and used for the…

A: The balanced equation for the formation of the precipitate, BaSO4(s) is: Ba2+(aq) + SO42-(aq)…

Q: Possible Unknowns OH (E)-3-methylpent-2-ene bp = 69 °C pentan-3-one bp = 101.5 °C pentan-3-ol bp =…

A: In the GC column the low boiling compounds elutes firsts.

Q: What is the equilibrium constant expression for the equilibrium between dinitrogen tetroxide and…

A: Keq is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: Cyclohexane has a molar enthalpy of combustion of -3920 kJ/mol when burned in a closed system. The…

A: Solution - According to the question - Heat - Heat is the form of energy that is transferred between…

Q: 3. 36,144J is needed to change 4 kg of substance from 12 °C to 30°C, what is the substance? Show…

A:

Q: According to Bronsted-Lowry, what is the definition of an BASE?    Choose the right answer in the…

A: According to Bronsted-Lowry, what is the definition of an BASE?    Choose the right answer in…

Q: 9. How much heat will be transferred when 14.9 g of ammonia reacts with excess oxygen according to…

A: Given :- 4NH3 + 5O2 →4NO + 6H2O  ∆H = -1170 kJ  To calculate :-  Amount of heat transferred on…

Q: A 100.0 ml. solution of 0.0200 M Fe³* in I M HCIO, is titrated with 0.100 M Cu*, resulting in the…

A: Given that, a 100.0 mL solution of 0.0200 M Fe3+ in 1 M HClO4 is titrated with 0.100 M Cu+,…

Q: Complete the followsing reactionse a. CH20H + CH3CH2-ott Ho Cit2OH CHO otH +Cu+ CH20H CH3 + ClHz CH…

A:

Q: energy

A:

Q: If 75.0 mL methanol is combined with 250.0 mL water, what is the volume percent of methanol in the…

A:

Q: ochemical equation for the formation of aqueous su (g) + H20 (1) → H2SO4 (aq) + 909.27 kJ (g) + ½ 02…

A: Enthalpy of formation is the Enthalpy change for formation of one mole substance from their…

Q: 100.0 grams of sodium sulfate reacts with 50.00 grams of barium nitrate. e) How much excess reactant…

A: Here 100 g of Na2SO4 reacts with 50 g of Ba(NO3)2 . We have to determine mass of excess reactant…

Q: CH3 H3C-

A: Important points: Double bond give higher priority than alkyl group. When the alkyl substitent is…

Q: QUESTION 4 Consider the following equilibrated system: 2NO 2( g) 2NO( g) +0 29). If the K p value is…

A: Given that -  Equilibrium constant , Kp = 0.648  NO2 pressure = 0.520 atm  NO pressure = 0.300 atm…

Q: The diprotic acid lactic acid is produced as a result of anaerobic respiration. Raquel titrates the…

A:

Q: Oxidation involves

A:

Q: 10. Which one of the following is best associated with carbohydrates? a. amino acids b. phosphate…

A:

Q: The equilibrium concentration for a reaction were found to be the following 0.05M  [ N2] ,   1.87M […

A: Kc is the ratio of the equilibrium concentrations of product over equilibrium concentrations of…

Q: orm hydrogen ions and cyanide ions, the equilibriu constant at 25°C is 5 x 10-10. What does this…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: 15.) Which of the following systems has the greatest change in internal energy! A.) A mixing of two…

A: C