propane (C:H8) produces 2220 kJ of = consumed. What mass in grams of eat 55.0 gal of bathtub water from 25 s is 80.0% efficient? (1 gal = 3.785 L of water is 1. 00 a/ml the specific he

Q: The decomposition of hydrazine (N2H4) into nitrogen gas (N2) and hydrogen gas (H2) proceeds…

A:

Q: If AG for a reaction is -3.8 kcal/mol, and Q is 1.3 x10°, what is the value of Keg for this reaction…

A:

Q: A 0.37 g Cheeto is burned and the heat produced is used to heat 50 grams of water from 22.1 degrees…

A: Mass of Cheeto=0.37 g Mass of water=50 g Initial temperature =22.1°C  Final temperature=34.4°C…

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water with…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: In fertilizer, 15.0 g of urea (NH2 CONH2) is dissolved in 250 mL of water. A temperature change from…

A: Given that,  Amount of urea,  = 15.0 g Volume of water, m= 250 mL  = 250 g * density of water at…

Q: Consider the generic chemical reaction between A and B to form C. A has a molar mass of 215.8 g/mol,…

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

Q: 1. The average American household consumes 11,000 kWh per year. a. If there are 3.6 x 10° J in a…

A: Your answers for #(a), (b), and (c) are not correct. The correct answer and solution are shown…

Q: C2H4 (g) + H2O (l) → C2H5OH (l) ΔH=? 1.C2H5OH (l) + 3O2 (g) → 2CO2 (g) + 3H2O (l) ΔH = -1367,5 KJ…

A:

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: How many kilocalories are required to produce 2.815 mol of aluminum? Here is the equation for…

A:

Q: Is heaven exothermic or endothermic? Is hell exothermic or endothermic?

A: Given We know about the  exothermic or endothermic

Q: ellular respiration is a process that produces energy for the cell and is about 40% efficient. If…

A: The efficiency of the process of cellular respiration is = 40 % The total energy used in cellular…

Q: a 0.2500g sample of a pretzel is burned . The heat it gives off is used to heat 50.00g of water from…

A: Amount of heat liberated: It is calculated as,

Q: hen 1.0 gg of gasoline burns, it releases 11 kcal of heat. The density of gasoline is 0.74 g/mLg/mL.…

A: Given : Energy = 11Kcal. Amount of gasoline = 1.0 gallon.

Q: L. Using Table 1, calculate AH; for each of the following reactions. Tell if each is exothermic or…

A:

Q: lacmillan Learning Carbohydrates serve as a vital source of chemical energy to the human body.…

A: 1 KJ = 0.239 Kcal  So  119 KJ = 119 X 0.239 Kcal             =  28.44 Kcal

Q: 1. Complete the following: Name of product: pastry crisps fat grams _x 9 kcal/g kcal %3D Mass in one…

A: Total grams multiplied by energy in Kcal/g will help in calculation of total calories.

Q: How many Joules are there in 54.0 kcal? (1 cal = 4.184 J)

A: One calories is equal to 4.184 joule.                1 kcal = 1000 cal.…

Q: How many Joules are there in 43.3 kcal? (1 cal = 4.184 J)

A: The conversion of quantity from one unit system to another unit system is known as unit conversion.…

Q: Calculate the quantity of energy needed to raise the temperature of 500mL EtOH from 0.00 (degrees)C…

A: Mass of ethanol = volume x density = 500 mL x 0.80 g /mL = 400 g.

Q: The heat of reaction for the combustion of hexane, C6H14, is 995.0 kcal/mol. What is the heat of…

A: The heat change in a particular reaction is known as enthalpy change (∆H). The endothermic reactions…

Q: Are the following processes exothermic or endothermic?ol type='a'>• When solid KBr is dissolved…

A: Process in which heat is produced are called exothermic process while the reactions in which heat is…

Q: tion (qsoln) if the mass of solution is 45.6 g, specific heat is 3.98 J/g C, and on (grxn) for the…

A:

Q: A typical recipe for a hot toddy (a drink often used as a cold remedy) is to mix hot water…

A: The amount of energy absorbed by 16 oz. of water is 33 kcal. The amount of hot water mixed with 1.5…

Q: calories per millimol

A:

Q: Pretzels contain (109 Cal/28.3 g).  How many minutes will I need to walk in order to burn off 56 g…

A: First convert calories into gm Then use unitary method to get the answer

Q: The nutritional calorie (Calorie) is equivalent to 1 kcal. One pound of body fat is equivalent to…

A: The objective of this question is to find out how long it would take for an athlete to burn off 1.0…

Q: 25. Two pollutants that form in auto exhaust are CO and NO. An environmental chemist must convert…

A:

Q: L. Using Table 1, calculate AH for each of the following reactions. Tell if each is exothermic or…

A: Calculate enthalpy of the given reactions----

Q: 3. Identify each of the following reactions as: and balance them EX) exothermic or EN) endothermic…

A: Step 1: Step 2: if heat or energy is used or get consumed in the reaction than it is  an endothermic…

Q: Calculate the final temperature that results when A 12.6 g sample of water at 22.9 0C absorbs 875 J…

A: The given two problem can be solved by this equationQ=m.c.△TWhereQ=Amount of heat absorbed or lost…

Q: Cyclopropane (CH2)3 was burned to carbon dioxide and liquid water, as represented by the equation…

A: Answer:- This question is answered by using the simple concept of Hess law of constant heat…

Q: A 0.2500g sample of a pretzel is burned. The heat it gives off is used to heat 50.00g of water from…

A: The amount of heat liberated can be calculated as follows-

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: Part D Food calories D1 Name of food product Naked juice D2 Mass of food nutrients in one serving…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3 sub-parts. Please resubmit the…

Q: A 40 g sample of water is raised 10 celcius, with water having a specific heat of 4.184 J/g*C, what…

A:

Q: 2. A patient receives 2.5 L of intravenous (IV) glucose solution. If the liquid contains 5.0 g…

A:

Q: A bicyclist is stopped at the entrance to a valley, as sketched below: E Where would the bicyclist…

A: