What is the final temperature when 640 calories are given off (-q) by 40.0 grams of water at 45.0 ºC? Select one: a.19 ºC b.29 ºC c.24 ºC d.32 ºC

Q: which has more calories : table sugar or aspartame ? what does synthetic gas (water gas) consist of…

A: Aspartame  is an artificial non saccharide sweetener, while table sugar is a natural disaccharide…

Q: Part 4: Hess's Law a. Mass of NaOH dissolved (g) 0.3434 b. Mass of calorimeter (g) c. Mass of…

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

Q: What is the kinetic energy in J and cal of a 45-g golf ball moving at 61 m/s?   168 J, 40 cal B.…

A: Given, Mass of golf ball = 45g

Q: A certain process results in a gas system releasing 68.3 kJ of energy. During the process, 15.8 kcal…

A: Given , Energy released = 68.3 kJ Heat absorbed = 15.8 kcal External pressure = 1.00 atm Initial…

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: Convert 17.3 JJ to Calories 132 kJkJ to Calories 56.2 CalCal to joules.

A: In this question, the energy values are provided and they have to be converted into mentioned units:…

Q: A gas is compressed from an initial volume of 5.55 L to a finalvolume of 1.22 L by an external…

A: The expression for the work done,  W=-P(Vf-Vi)W=-1.00 atm (1.22 L-5.55 L)W=4.33 L (101.33 J)1 L…

Q: Consider the reaction shown below. How many moles of P4010(s) are needed to produce (release) 915 kJ…

A: balanced chemical reaction P4O10(s) + 6H2O(l) ---> 4H3PO4(s)             △H = -290 KJ In above…

Q: 5- What is the definition of the specific heat capacity of a substance? a. the amount of heat…

A: When a substance heated its temperature will be increased. The amount of heat required to increase…

Q: The combustion of butane, C4H10, is given as: 2C4H10(g) + 1302(g) 8CO2(g) + 10H,O(I), AH° = -5314…

A: Given values -> 2C4H10+13O2-> 8CO2+10H2O ∆H°= -5314kj

Q: 22. How many calories of energy are needed to raise the temperature of 87.g of water from 0 to 212…

A: The heat required to raise the temperature of the substance is directly proportional to the…

Q: Consider the reaction, C₂H4(g) + H₂(g) → C₂H6lg where AH = -137 kJ. How many kilojoules are released…

A:

Q: An average hot water tank will hold 300.0 L of water needs to be kept at 65.0OC in order to kill any…

A:

Q: The specific heat of aluminum is 0.214 cal/g·oC. Determine the energy, in calories, necessary to…

A: The specific heat of aluminium is = 0.214 cal/(g·oC) The mass of aluminium is = 55.5 g The increase…

Q: 31.) A small candy bar has 52.0 Calories.  If all the energy is converted to heat by how much would…

A: For any known substance whose mass/amount is 1.0 gram, the heat amount (Q) necessary for…

Q: 9.Consider the reaction 3NO2(g)+H2O=2HNO3(aq)+NO(g) where Delta H=-137 kJ.How many kilojoules are…

A: Nitrogen dioxide gas reacts with water to form nitric acid. The equation for the balanced chemical…

Q: At 20o C the average velocity of N2 molecules in air is 1050 mph. What is the average speed in…

A: 1)a) Average velocity of N2 molecules = 1050mph.The average speed in m/s is shown as follows,

Q: A serving of soup contains 4.0 g4.0 g of fat, 16.0 g16.0 g of carbohydrates, and 2.0 g2.0 g of…

A:

Q: In the thermochemistry experiment, to determine the water equivalent of the calorimeter cup, and…

A: Option B is correct.

Q: 2116.16 J of energy is equivalent to how many calories?

A: Given :- 2116.16 J of energy  To calculate :- Energy in calorie.

Q: The combustion of methane is CH4 + 2O2 → CO2 + 2H2O ΔH = -802 kJ/molHow much heat is produced when 2…

A: Change in enthalpy is the formation of one mole of a compound from its elements. It can be positive…

Q: Use the following information to anwser the next question: HNO3(aq) + KOH (aq) → KNO3 (aq) + H2O…

A: Given that: Volume of HNO3 sample = 50.0 mL Volume of KOH solution = 50.0 mL Concentration of HNO3…

Q: One serving of food contains 56 grams of carbohydrates. How many k calories from carbohydrates are…

A: mass of carbohydrates in one serving of the food = 56 gAmount of energy from carbohydrate in a…

Q: A bomb calorimeter, or a constant volume calorimeter, is a device often used to determine the heat…

A:

Q: Is the combustion of chicken fat endothermic or exothermic? Explain.

A:

Q: 7. How many calories are absorbed when 250.0 grams of water warm from 20.0 °c to 60.0°c? Q AT

A: Liquid water absorb 1 calorie of energy to increase temperature of 1 g of water by 1 degree Celsius.…

Q: How many calories are required to change the temperature of 25.5 g of iron from 22.5 oC to 83.2 oC?…

A: Amount of heat energy needed to raise the temperature of body by 1°c

Q: How many calories are required to change the temperture of 2.0 x 10^3 grams of H20 from 20C to 38C?…

A: This problem can be solved by using the formula :                                  q=mc∆Twhere q is…

Q: Write the thermochemical equation for the following reaction that occur at constant pressure. 1.)…

A: The thermochemical reaction is a balanced chemical reaction involving the energy absorbed or…