QUESTION 3 State modifier and electrochemical method that can be used for the detection of the follo (a) analytes: i. ii. iii. iv. V. Cystein Glucose Phenol Salicylate Hydrazine

Q: How many milliliters of 0.475 M KOH solution are needed to completely neutralize 38.0 mL of 0.231 M…

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Q: Sodium bicarbonate (NaHCO3), also known as baking soda, is a common home remedy for acid indigestion…

A: Sodium bicarbonate is a base, which acts by doing neutralisation reaction with acids in our body.…

Q: 3 The HCI concentration in an overly acidic stomach is 0.030 M and the volume of liquid in the…

A: We know that, Molarity = number of moles/volume in litre

Q: Which below is the proper equation(s) for ionization of nitrous acid?       a)  HNO3   +    H2O…

A: The formula for nitrous acid is HNO2 The ionization of nitrous acid in water is a reversible…

Q: PART A: Standardization of a Sodium Hydroxide Solution Mass of KHP = 0.2 g %3D Molar mass of KHP =…

A: Moles of KHP = 0.2204.44 = 0.00098 Volume of NaOH = [ 50 - 30 ] = 20mL Concentration of NaOH = 0.049…

Q: 4) A student wishes to check the amount of HCI found in a bottle in lab. On the label of the bottle,…

A: The reaction taking place will be, HCl (aq)+ NaOH (aq)→NaCl (aq) + H2O (l)

Q: How many mL of a 0.121 M aqueous solution of copper(II) acetate, , must be taken to obtain 8.24…

A: Here we calculate the required volume of solution through molarity calculation. we know molarity is…

Q: 4. Based on the balanced reaction between the analyte and reagent, how many moles of HCI are…

A: Given : Reaction between Sodium carbonate and HCl  To find : Number of mole of HCl consumed per mole…

Q: Three test tubes are collected with the same type of acid (6M HCT) and within each test tube one of…

A: The rate of a chemical reaction is given by:

Q: 6.25 gm of Sodium Chloride dissolved in distill water , then the volume completed to IL , found that…

A: In aqueous Sodium Chloride when Silver Nitrate is mixed ,Insoluble Sodium Chloride salt is formed.…

Q: What substance dissolved it? Which is solved and salute

A: A solution is a homogeneous mixture of a solute dissolved in the solvent.

Q: - Which of the following graphs represents Addition of drops from hydrochloric acid to tube contains…

A: When phenol is alone in the tube the concentrat of OH- ion is constant. When HCl is added to it, the…

Q: The change of a compound into a carbonate, which promotes chemical weathering, is known as:…

A: Carbonation is a type of chemical weathering in which water mixed with carbon dioxide to form…

Q: In the chemical oxygen demand (COD) experiment, the role of using potassium dichromate is:

A: Oxidising agent can be defined as the substance that oxidizes other species and itself get reduced.

Q: In preparing a buret for titration, how many times do you put about 5-10 mL of sodium hydroxide…

A: Titration is the process by which a concentration of unknown solutions is known by known solutions.…

Q: B. Reactions in Solution Consider the reaction that occurs when 75 mL of 1.2M sodium sulfate is…

A: A question based on stoichiometry. A precipitation reaction between Na2SO4 and Ba(NO3)2 is…

Q: a. AGNO3(aq) + H;SO,(aq) Observation: Equation: Net ionic equation b. Pb(NO,),(aq) + H,SO,(aq)…

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Q: Suppose i want to prepare 1 litter of bike or car washing shampoo, now for increasing the shininess…

A: A shampoo is a hair care product that is designed to clean hair and scalp. It is typically a viscous…

Q: Suppose i want to manufacture 200 litters of Acid free shampoo for bike or car washing. What is the…

A: To manufacture 1 liter of acid-free shampoo for bike or car washing, you can use the following…

Q: What is the concentration of a 54.40 mL solution of HBr that is completely titrated by 33.50 mL of a…

A: Molarity is defined as the moles of solute dissolved in litre of solution.

Q: had taken place. What is 3) What is the effect on the determination of the sodium hydroxide…

A: We have find out the answer. Note ~ Since you have posted multiple questions, we will provide the…

Q: How many liters of 2.60 M HCl are required to veact completely with 30.0gu0-

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Q: The compound chromium(II) iodide is a strong electrolyte. Write the reaction when solid chromium(II)…

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Q: How many grams of calcium phosphate can be produced from the reaction of 2.75 L of 0.650 M Calcium…

A: The balanced chemical equation for given reaction is as follows, 3CaCl2+2H3PO4→Ca3PO42+6HCl

Q: 2:32 Identify if each of the below compounds is soluble or insoluble in water Li₂SO4 [Select]…

A: Answer :---- (1) Li2SO4 :- Here, it contains Li+ and SO42- ions.(2) Mg(OH)2 :- Here, it contains…

Q: What is the coefficient for H+ when the equaiton below is balanced?…

A: b. 6

Q: Using the Hanus method of determination of Iodine number, what is the Iodine number for the…

A: Given that   Volume.of titrant = .350 ml

Q: QUESTION 1 Which of the following reactions would be suitable for analysis by conductometry? (Select…

A: Conductometry analysis is analysis of reaction progress depending upon the conductance measurements.…

Q: 4.67 How many milliliters of 0.250 M NaOH are required to neutralize the following solutions? a.…

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Q: Calculate the number of moles of HCl that reacted.

A: Molarity is a way of expressing concentration which is defined as moles of solute present per liter…

Q: Acid-Base & Redox Titration a. Calculate the volume in mL of a 1.420 M sodium hydroxide solution…

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Q: Which of the following pairs of reagents will form a precipitate when mixed? (i) NaCI(aq) +…

A: Given reactions: We have to find in which cases a precipitate will form.

Q: What is a calibration curve? (select the BEST description) O a. A calibration curve is a serial…

A: As you have asked two questions, I will give you the answer for the first one.

Q: Which below is the proper equation(s) for ionization of nitrous acid?       a)  HNO3   +    H2O…

A: D option is the correct option. Nitrous acid is a weak acid. Nitric acid, on the other hand, is a…

Q: #13  Mass percent of asprin in tablet

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: For each of the following reactions, give a balanced net-ionic equation. a) MgSO4 + H2SO4 b) NaI +…

A: In the given question we have to write the net ionic equation of the following Reaction. Net ionic…

Q: evidence of reaction such as: (a) the formation of a precipitate, (b) the formation of a gas, (c)…

A: Evidence of a reaction is the proof ofa reaction to be occured.

Q: Automobile batteries use 3.00 M H2SO4 as an electrolyte. How many liters of 4.23 M NaOH will be…

A: Molarity is defined as total number of moles of solute present in 1000 ml of solution Molarity =…

Q: 3. Aliquots of an unknown tris sample were titrated with a standard HCl solution: a. Use the…

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Q: Hello, I need help taking all the information and turning it into a balanced molecular equation.…

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Q: help please answer in text form with proper workings and explanation for each and every part and…

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Q: 1. In this experiment we tested for the ammonium ion using a fresh sample of the unknown. Why was…

A: Test for ammonium ion: SPECIFIC TEST:  NH4+ + OH-  →NH3 + H2O                        collect this…