Explain one effective or ineffective aspect of this graph.

Q: - A piece of zinc (Zn) is immersed in aqueous hydrochloric acid solution. According to this which of…

A: Given: Metal Zn is immersed in aqueous hydrochloric acid i.e. HCl solution.

Q: A neutral solution of water at a particular temperature has a concentration of OH- of 4.5 × 10-7 M.…

A: Water molecule can act as acid as well as base. Hence it can give or take H+ ions. The auto…

Q: a chemical reaction releases 55.2 kcal. how many kilojoules does this correspond to

A: Amount of energy released = 55.2 kcal

Q: IDENTIFY DIFFERENT CHEMICAL REACTIONS AND ITS ADVANTAGES AND DISADVANTAGE

A: A Chemical Reaction is a process that occurs when two or more molecules collide with the right…

Q: 16. What is the law of conservation of mass?

A: The law of conservation of mass states that :"The mass in an isolated system can neither be created…

Q: solution

A: Dear student I have given answer to your question in the image format.

Q: Thermometer When a solid dissolves in water, heat may be evolved or absorbed. The heat of…

A: The heat released in the reaction is equal to the sum of the heat absorbed by the solution and the…

Q: 2) Find the molality of NaCl in solution e Equation editor here to show all your work! You can copy…

A: 2. Given that, The mass of the empty 100 mL beaker = 47.231 g. The mass of the beaker + distilled…

Q: On a 16.5 ounce bag of potato chips, the manufacturer states that the single serving is one ounce,…

A:

Q: When NH4CI is added to water, the resulting solution feels cool to the touch. Which best describes…

A: At a particular temeprature the amount of heat energy released (or) obserbed when 1 mole of solute…

Q: Classify the different properties of petroleum products and explain the significance of measuring…

A: Physical properties of petrolium products Density Vapour pressure Surface tension  Flash point…

Q: The following bar graph shows the starting and highest/lowest temperatures reached for four…

A: Given,  The temperature is related to the heat energy.  The temperature of the solution increases…

Q: Ph CH3 OEt cat. HC1, H₂O, heat

A: Ester hydrolysis is a chemical reaction where an ester molecule reacts with a molecule of water to…

Q: Before heating 4 qt. saucepan 8 qt. stockpot 24.5 °C Temp. 24.5 °C Temp. After heating for 5 minutes…

A: Water has specific heat constant of 4.184 J per g per oC which means that 4.184 J of energy is…

Q: Of the following examples, which is exothermic? A. dissolving ammonium nitrate in water to cool the…

A: Exothermic reaction: Heat is evolved in reaction. Endothermic reaction: Heat is absorbed in the…

Q: Is freezing an exothermic process or endothermic process? Explain how you are experimentally…

A: Freezing is an exothermic process.

Q: 35 kJkJ to calories

A:

Q: A clinic had 25 patients on Friday morning? If 21 patients were give flu shots, what percentage of…

A: 1.Total no. of patients on Friday morning = 25 Patients received flue shots = 21 2. Volume of IV…

Q: please don't provide hand writing  solution

A: The objective of the question is to find the probability of more than three individuals and exactly…

Q: Convert 16.00 kJ to calories (cal). 16.00 kJ = Convert 193 kcal to kilojoules (kJ). 193 kcal = cal…

A: The objective of this question is to convert energy units from kilojoules to calories and then from…

Q: Environmental science is an interdisciplinary field of study. This means that.

A: Interdisciplinary field. It involves several disciplinary field. It is uses to redefine problems…

Q: Do you think that you could eat a half mole of donuts in a year? Defend your answer mathematically.

A: In a year, there are 365 days. 1 mole = Avogadro number

Q: Fill in the table below. Substance Type of Solid (molecular solid, ionic solid, metallic Type of…

A: All chemical species has a certain type depending on its bonding and forces that tends to keep them…

Q: 60. In this diagram, AH represents Products Reactants Reaction Progress (A) heat absorbed. (B) heat…

A: There are basically two types of reactions - exothermic and endothermic reactions. Endothermic…

Q: Hz SOu (cat) , heat HO.

A:

Q: OH 1.PBO 2. Mg OH

A:

Q: What is the importance of these rules?

A: To describe the importance of Aufbau principle, hund's rule and pauli's exclusion principle.

Q: The quantity 26.0 kJ is equal to how many calories?

A: We have energy as 26.0 KJ . We have to convert it to Calorie .

Q: Enter a balanced chemical equation for the reaction of aqueous potassium hydroxide with aqueous…

A: Double displacement reaction :- A chemical reaction in which exchange of ions between two reacting…

Q: Chemistry A young adult (60 kg body weight) drinks two beers of 12 oz. each, over a period of 10…

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Q: two solvents A (d=0.859 g/mL) and B (d = 1.290 g/mL) are immiscible. When 12.0 mL of solution A is…

A: Density=1.0314g/ml

Q: What type energy is an battery? O a Thermal Energy Chemical Energy Potential Energy Electric Energy

A: Battery is a device which can convert chemical energy to electrical energy.

Q: 21. A turblne system Is used to produce electrical energy. Wires (electrical energy) Turbine…

A: As per conventions, maximum energy is present at the source. As we convert the energy at the source…

Q: Investigation Observations After Two Liquids Are Combined The temperature of the combined liquids…

A: Signs of a chemical reaction: Change in temperature Change in colour Precipitation

Q: David are cooking a dinner and the recipe calls for chicken broth. David realize that you don’t have…

A: David have the dried cube form of chicken broth that can be dissolved in water now we have to find…

Q: A food contains 50 grams of carbohydrate and has a total 200 kilocalories. What is the percentage of…

A: To calculate the percentage of calories from carbohydrates, you need to consider that carbohydrates…

Q: How does adding a little amount and a greater amount of sugar affect the time it would took for the…

A: How does adding a little amount and a greater amount of sugar affect the time it would took for the…

Q: Volume, V Pressure, p Temperature, T

A: Mass or moles of the given substance is constant. Then, we can relate P, V and T from the plot…

Q: . Convert 68852 millijoules into Calories. (Write your answer in the decimal form. Do not include…

A: 1 millijoule = 2.39 x 10-4  cal

Q: What type of a system and process does water heater that takes in cold water a

A: Heat transfer process takes place in a heater, where the energy is derived from the an external…

Q: 1.219 Joules converted to cal

A: We know, 4.184 Joule = 1 Cal Or. 1 Joule = (1/4.184) Cal = 0.239 Cal

Q: 11. Given the equation: N₂(g) + 2 O2(g) → 2 NO₂(g), AH = 68 kJ Which of the following is correct?…

A:

Q: Directions: Answer the folowing question(s). 4 The ambulance is moving towards the woman standing 6…

A:

Q: Interconvert heat change and substance quantities in chemical reactions

A: In chemical reactions, heat and substance quantities are closely related and are interconnected…

Q: The gold plating of a ceramic figurine requires a total of 4.96 g of solid gold. If the current…

A: Given,  Mass of gold required, w = 4.96 g  Current passed, I = 11.8 A  Molar mass of gold = 197…

Potentiometric Titrations

Potentiometric titration is one of the important titration methods and is mainly carried out to characterize acid solutions. It follows a method similar to that of the normal titration technique, but the main difference is that there is no indicator used in the potentiometric titrations. Instead of using an indicator, electrodes are employed for monitoring the whole titration process. A scientist named Robert Behrend did the potentiometric titration for the first time, and it was done using the mercurous solution and potassium chloride.