monia (NH3) decomposes to hydrogen and nitrogen and 22.0 kcal of energ 2 NH3(g) - 3 H2(g) + N2(g) AH = +22.0 kcal y much energy is absorbed when 1.41 mol of NH, reacts? kcal of energy absorbed ort your answer to appropriate number of significant figures.

Q: 3. What is the heat change when 55.0 g of water cools from 60.0 degrees Celsius to 25.5 degrees…

A:

Q: A 522.5 g sample of aluminum is initially at 23.2 C. It absorbs 23.73 kJ of heat from its…

A:

Q: How much heat energy is required to raise the temperature of 0.366 kg of copper from 23.0 ∘C to 60.0…

A: The heat energy required to raise the temperature can be calculated as follows,

Q: Mass of iron 64.8973 g Mass of water 61.9272 g Initial temperature of iron (boiling water Tm) 98.0…

A: Used thermal equilibrium concept.

Q: A beaker contained 70.3 g of water at 13.51°C. A 102.77-g sample of metal at 72.84°C was placed in…

A:

Q: A 152.0 g ball traveling at a speed of 2.30 m/s has a kinetic energy of Answr J

A: The kinetic energy of the ball is given by: where m = mass of the ball = 152.0 g v = velocity of…

Q: 1) Na 1, Acetone 2) Na* Ng, THF 0 °C 85% H3PO4. OH H20, heat

A: i)  Nucleophilic substitution biomolecular reaction (SN2):The bimolecular nucleophilic substitution…

Q: 1 4 Acetylene (CH, gas is often used in welding torches because of the very high heat produced when…

A:

Q: One cup of clam chowder contains 27 g of carbohydrate, 15 g of fat, and 9 g of protein. TABLE 3.7…

A: Food type kcal/g kJ/g Carbohydrate 4 17 Fat 9 38 Protein 4 17

Q: Sodium (Na) metal undergoes a chemical reaction with chlorine (Cl) gas to yield sodium chloride, or…

A: 1 cal = 4.184 J Na + 0.5 Cl2  -----> NaCl + heat Heat released by reaction of 1.00 g of sodium =…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: 1 calorie = 4.184 joule 1 kJ = 1000 joule in

Q: 115. This molecular drawing shows images of acetone mol- ecules before and after a change. Was the…

A: Physical properties are the properties of a compound which can be measured and determine the state…

Q: What is 58.6 mJ in units of J? Enter in a number without units.

A: The unit conversion can be done by multiplying or dividing the given units by appropriate numbers.…

Q: 3. In the equation AHsoln = AHsohute + AHsolvent + AHmix the term AHsolvent is almost exclusively…

A: The formation of solution involves the breakdown of inter-molecular forces between the solute…

Q: How many calories 5000 Joules are?. No computation, no points

A: There are different units of heat-  1- joule 2- calorie

Q: Use the ΔHof data in Table A4.3 to calculate the value of ΔHorxn for the following chemical…

A: The given reaction is:

Q: N2 (g) + 3 H2 (g) 2 2 NH3 (g) + 100 KJ

A: Le Chatelier principal explained the effect of concentration, temperature and pressure on…

Q: Expressing amounts of energy in different energy units is necessary to solve many chemistry…

A: Energy can have several units like kJ, kcal, BTU

Q: A certain physical process requires 36.00 kilojoules (kJ) of heat.  Convert this quantity to…

A: Given : Energy in KJ = 36.00 KJ

Q: The goose has a mass of 16.4 lbs and is flying at 10.4 miles/h. What is the kinetic energy of the…

A: Speed = 10.4 miles/hour.

Q: We use the density of water to calculate the mass of water from its volume. The density of water at…

A: Given, density of water =0.998 gmLvolume of water in calorimeter filled =104.6 mLwe are asked to…

Q: 4. An athlete eats food in order to get energy for their competition that day. What type of energy…

A:

Q: What mass of natural gas (CH4)(CH4) must you burn to emit 261 kJkJ of heat?…

A: Heat of Combustion: The heat of combustion (ΔHc0) is the energy released as heat when a compound…

Q: The specific heat of lead is 0.13 J/g °C. How much heat (in J) is required to raise the temperature…

A: Specific heat capacity of a substance is equal to the amount of heat energy is used to change the…

Q: 1.Neon, a gaseous element used in neon signs, has a melting point of -248.6 °C and a boiling point…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: AH = m c AT 1. Zinc at 50 °C was heated to 100°C. A total of 4,000 J of heat were added to make this…

A: given values are- ∆H = heat =  4000 J c = specific heat = 0.40 J/g 0 C ∆T = change in temp= final…

Q: chemistry

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

Q: A 0.82 g corn chip burns and heats 50 g of water from 22.1 degrees C to 27.8 degrees * C . If 0.23 g…

A:

Q: |The specific energy and density of gasoline is -47.3 MJ/kg and 716 kg/m³, respectively. What is its…

A:

Q: ΔHcond

A:

Q: If 52 J of heat is added to an aluminum can with a mass of 29.1 g, what is the temperature change?…

A:

Q: Mass of iron 64.8973 g Mass of water 61.9272 g Initial temperature of iron (boiling water Tm) 98.0…

A: Given:  Specific heat of iron = 0.450 J/g K Specific heat of water = 4.184 J/g K Specific heat is…

Q: m Calculate the kinetic energy of a 67. g bullet moving at a speed of 499.

A: Given : mass of bullet = 67. g             speed = 499. m/s  To be calculated :- kinetic energy (J)

Q: The definition of "Btu" is the energy needed to raise the temperature of 1 Ibm of water by 1 °F. The…

A:

Q: A 0.25g sample of a pretzel is burned. The heat it gives off is used to heat 50. g of water from 18…

A: Given information: Mass of sample = 0.25 g Mass of water = 50.0 g Initial temperature = 18°C Final…

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: If 57 J of heat is added to an aluminum can with a mass of 25.0 g, what is the temperature change?…

A:

Q: A geochemist in the field takes a 47.0 mL sample of water from a rock pool lined with crystals of a…

A: Given that : The volume of distilled water = 47 mLAfter drying, the mass of the crystals  = 8.93 g…

Q: How many joules of heat are required to heat 65 g lead from 22.0°C to 98.5°C?

A: The given mass of lead is 65 g. The specific heat of lead is 0.128 J/g °C. The given temperature…

Q: Convert and watch for sig figs! Answer in scientific notation. 134.7 kJ is kcal

A: Given units are KJ and Kcal and they are units of energy.  For converting KJ to Kcal…

Q: The "Nutrition Facts" on a label of a 64 fluid ounce container of apple juice states that a serving…

A:

Q: The heat of combustion of isobutane, CH(CH3)3, is -2869. kJ/mol of isobutane. If a calorimeter…

A:

Q: How much energy (in J) is lost when a sample of iron with a mass of 26.9 g cools from 78.0 °C to…

A: The mass of iron is = 26.9 g The initial temperature of iron is = 78.0oC The final temperature of…

Q: When we see that 10 gummy bears are 80 Calories meaning that each bear is 8 Calories, this really…

A: 10 gummy bears = 80 calories.  1 gummy bear = 8 calories. 1 calorie = 4.184 J 1 kJ = 1000 J.

Q: A nutritional bar contains 8575 nutritional calories. How many joules of energy is this?

A:

Q: O:- A piece of gold (c=0-1a9 J/g) c^s heated to Lo0'c and placed into 6omL water at 20.5%. phe final…

A:

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Consider the given conversion is as follows; 0.060 Jmol .        =  ? kJmol We know that, 1 J =…

Q: A2 (g) 3H2(g) 2NH3(g) is 1.64x104. Calculate Kc and Kx

A: This question is related to equilibrium constant.

Q: A typical candy bar contains 281 food Calories, which is 281 kcal. How many kilojoules are contained…

A: Given that : Energy provided by one candy bar = 281 kcal. We have to calculate the kilojoules of…