29. Do H, and O, (AG is -57 kcal/mol) react spontaneously to make water? Why or why not? What prevents it from happening instantly on its own?

Q: A neutral solution of water at a particular temperature has a concentration of OH⁻ of 9.7 × 10⁻⁷ M.…

A: Given⇒       OH-=9.7×10-7M            KW=?

Q: A Chemistry teacher is preparing solutions for a classroom activity. For the scenarios below,…

A: Here we have to predict whether the following dissolution of the ionic compounds in water are…

Q: The formation of rust (Fe2O3) from solid iron and oxygen gas releases -1.7  103 kJ. 4 Fe(s) + 3…

A: The question is about to calculate the mass of rust formed when 150 kcal are released -

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

A: Amount of energy released = 55.2 kcal

Q: 3. The following equation shows the reaction that occurs when nitroglycerine explodes: 4 C3H509N3 →…

A: We have to predict the nature of reaction.

Q: For the reaction: 2H2O(l) + 137 kcal → 2H2 (g) + O2 (g), how many kcal are needed to form 0.5 moles…

A: Since in the above reaction we can see that 1 mole of O2 is formed when we give 137 Kcal of energy…

Q: Concentrated sulfuric acid is 18.0 M. You need to make a 2.0 L of 1.0 M solution from this…

A: Given data: M1 = 18 M H2SO4 V1=? M2 = 1.0 M H2SO4 V2 = 2.0 L

Q: Draw a more accurate representation of one unit of KCl dissolved in water

A: When potassium chloride (KCl) dissolves in water, it gets dissociated into potassium and chloride…

Q: 50.0 g of water at 22 °C is mixed with 125 g of water initially at 36 °C. What is the final…

A: Heat lost by hot water is just equal to heat gained by cold water.

Q: In the same reaction: CH4 + 2 O2 → CO2 + 2 H2O The experimental ?H is -213 kcal/mol. How many heat…

A: 2 mol of O2 burn heat released = -213kcal/mol 2.30mol of 2 mol of O2 burn heat released = -213 ×…

Q: In a calirometer 50.00 mL of 2.50 M NaOH was combined with 50.00 mL of 2.25 M HCl from a solution.…

A:

Q: Suppose you burn a 2.6 g sample of potato chips. You use the heat given off from that process to…

A: Given: The mass of the potato chips burned = 2.6 g The amount of water = 26.0 g The initial…

Q: energy content when eaten food cal kcal kJ 4 a raw carrot 3.00 x 10 30 125.52 a tablespoon of corn…

A: The question is based on the concept of unit conversions. We have to convert the values in…

Q: What evidence of chemical change is visible when electricity passes through water ? How are the…

A: Electrolysis of water:Water can also undergo a chemical change. Water molecules can be broken down…

Q: convert 661.9 kcal to MJ give answer to 4 sig figs

A:

Q: A neutral solution of water at a particular temperature has a concentration of OH⁻ of 2.9 × 10⁻⁷ M.…

A: For the neutral solution of water, [OH-] = 2.9 × 10⁻⁷ M Kw = ?

Q: Choose which waste disposal container you should dispose of the unused 0.1 M FeCl3 solution. A) acid…

A: In this question, we have to determine that which type of waste will FeCl3 makes, or we can say that…

Q: 10. Which entlalpy change is involved in the reaction? A--406K]mol" Na' (a) + ag- Nal A) Hydration…

A: Here sodium ion is present in gaseous state and when it is dissolved in aqueous solution, there is a…

Q: A certain fruit has a metabolizable energy of 0.4 kcal/g normally and 2.4 kcal/g after it has b een…

A:

Q: The experimental ?H is -213 kcal/mol. How much heat is released during the combustion of 45.3 grams…

A: We have to find the heat released

Q: 3. A typical diet in the United States provides 15% of the calories from protein, 45% from…

A: Given: A typical diet in the United states provides 15% of the calories from protein 45% from…

Q: Barium Hydroxide has a solubility of 4.68 g Ba(OH)2 in 100. g H2O at 25°C. Determine if each of the…

A:

Q: One mole of ethanol (C 2H 6O) releases 327 kcal when burned, whereas one mole of hydrogen (H 2)…

A: Given information: Energy released by one mole of ethanol = 327 kcal Energy released by one mole of…

Q: base

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

Q: A neutral solution of water at a particular temperature has a concentration of OH- of 9.4 × 10-7 M.…

A:

Q: For the reaction: CH3OHu +3 Ozg → 2 COz +4 HzOn+347 kcal 3 a. Is the reaction endothermic or…

A: Given reaction is :  2CH3OH (l) + 3O2 (g) ----------> 2CO2 (g) + 4H2O (l) + 347 kcal (a). Is the…

Q: There is a legend according to which a young man presented his beloved with a ring made of iron.…

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

Q: g of magnesium nitrate is dissolved in 1.20 L of water. 25 mL of this solution is taken and diluted…

A:

Q: A neutral solution of water at a particular temperature has a concentration of OH⁻ of 7.9 × 10⁻⁷ M.…

A: Given Concentration of [OH-] = 7.9 × 10-7 M

Q: Convert 15.00 kJ to calories (cal). 15.00 kJ = Convert 203 kcal to kilojoules (kJ). 203 kcal

A: Given here energy in unit of kJ and kcal and we are asked to convert themin cal and kJ the energies…

Q: Is dissolving AgNO3 in water an exothermic or endothermic process? What about dissolving MgSO4 in…

A: A chemical reaction in which heat energy is released is called exothermic reaction. Enthalpy is…

Q: The amount of carbon dioxide a vehicle emits is__________ related to the amount of fuel it consumes

A: The amount of CO2 a car emits is directly related to the amount of fuel it consumes. For instance, a…

Q: For the reaction: 2 CH3OH(1) +3 Ozle) → 2 CO2) +4 H2O(1) + 347 kcal 3 a. Is the reaction endothermic…

A: Given reaction is :  2CH3OH (l) + 3O2 (g) ---------> 2CO2 (g) + 4H2O (l)  +347 kcal  (a). Is the…

Q: 14. How many kilojoules are equal to 9.87x10^ 9 calories?

A: Here to calculate kilojoules(kJ). First, we need to convert calories to joules.

Q: Me Me H2SO, Me H20

A:

Q: 1.09 kcal of energy is added to 45 grams of water at an initial temperature of 23.4°C. What is the…

A:

Q: when 20 grams of a salt is dissolved in 95 grams of water the temperature of the solution decreases…

A: given; mass of water = 95 g temperature change = delta T = 40-30 = 10°C specific heat = 1.1 cal/g…

Q: How many kJ in 2 tablespoons of crunchy peanut butter that contains 6 g of carb. 14 g of fat and 9 g…

A: •It is given that two tablespoons of crunchy peanut butter contains 6g  of carbohydrates, 14g of fat…

Q: acid

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

Q: Enter your answer in the provided box. Calculate the mass of water produced by the metabolism of…

A:

Q: A neutral solution of water at a particular temperature has a concentration of OH of 9.0 x 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 volume of 0.25 L is acquired when you combine 0.2 g of Mg metal with HCl. Assuming the solution…

A:

Q: exothermic reaction

A: Answer (a)    :  The above given reaction is the exothermic . Because inthe reaction heat is…

Q: Enter your answer in the provided box. Calculate the mass of water produced by the metabolism of…

A:

Q: Suppose you burn a 2.4 g sample of potato chips. You use the heat given off from that process to…

A:

Q: A neutral solution of water at a particular temperature has a concentration of OH of 6.2 x 10 M.…

A:

Q: Wastewater treatment plant has influent sewage of 1000 m³/day. The influent concentration of BOD to…

A:

Q: Use the following information to answer questions 21 to 23. Methyl benzoate, C6H5COOCH3(1), is a…

A: Answer of 1. is A.