How much heat (in kJ) is released when 160 grams of CH4 is burned with 2000. grams of O2? If the answer is exothermic be sure your answer has the correct sign! CH4 + 2O2 --> CO + 2H2O  ΔH = -803 kJ/mol

Q: A 110.0-g sample of a gray-colored, unknown, pure metal was heated to 92.0 oC and put into a…

A: Assuming specific heat of metal is C. Since all the heat released by metal in reaching the final…

Q: A 125 gram piece of metal is heated to 288°C and dropped into 85.0 grams of water at 26.0°C.  If the…

A: We have 125 g of metal of temperature 288°C, 85 g of water at 26°C , both have final temperature as…

Q: 10.0g of ice at 0.00*C is mixed with 25.0 g of water at 35.00*C in a calorimeter. What is the final…

A: Here we need to calculate Tf means final temperature. msample= 10.0g  c is the specific heat of…

Q: How much heat is released by burning 32g of CH4? CH4(g) + 2O2 → CO2(g) + 2H2O(l)  ΔH=-891kJ

A: Given, CH4(g) + 2O2 → CO2(g) + 2H2O(l)   ΔH= -891kJ Note: (-) negative sign indicate the release of…

Q: coffee-cup calorimeter contains 50 mL of water with an initial temperature of 24.8°C. An unknown…

A: All the necessary calculations have been done in the following step.

Q: A 92.9-g piece of a metal is heated to 178.0 °C, and then cooled to 29.7 °C by removing 14052.6 J of…

A: Given: Mass of metal=92.9 g Temperature change, ∆T=(29.7-178.0)°C=-148.3 °C The heat released q…

Q: 1. Given the thermochemical equation: CH4 + 202 CO216) + 2H2O AH = -890.4 kJ Calculate the amount of…

A: Given reaction,  CH4(g) + 2O2(g) ⟶CO2​(g) + 2H2O(l); ΔH = −890.4 kJ

Q: When power was turned off to a 30.0 gal (113.562 L) water heater, the temperature of the water…

A: The question is based on the concept of specific heat capacity. amount of heat required to raise…

Q: Ignition wires heat Thermometer Stirrer A bomb calorimeter, or a constant volume calorimeter, is a…

A: Hello. Since your question has multiple parts, we will solve first question for you. If you want…

Q: A calorimeter has a negligible heat capacity. It contains 52.3 g of water initially at 22.4 Celsius.…

A:

Q: You pour a cup of tea that has a volume of 215.73 mL and is initially 91.06 °C. You place a silver…

A: Given , Volume of tea= 215.73 mL Initial temperature, Ti=91.06°C Specific heat of tea Ct= 4.186…

Q: A 4.4-g sample of Colorado oil shale is burned in a bomb calorimeter, which causes the temperature…

A: The formula of amount of heat absorbed: q = mc∆T Where,  q = Heat energy m = mass of substance c =…

Q: Burning propane gives off 49.9 kJ of heat energy per gram. If you burn 38.2 g of propane, how much…

A: Heat of combustion is defined as the amount of energy released when a compound is burnt in presence…

Q: 1. Ethanol has a specific heat of 2.44 J/g-°C. What does that mean?

A: Given Specific heat of Ethanol  = 2.44 J/g°C What does it defines = to be determined

Q: piece of unknown metal with a mass of 24.31 g is heated in boiling water to 90.51°C and then dropped…

A: The solution is provided in the next step: Given data: * Mass of metal is 24.31 g. * Mass of water…

Q: how many calories are required  to raise  the temperature of (2.6x10^2)h of water from 42.0celsius…

A:

Q: When power was turned off to a 30.0 gal. water heater, the temperature of the water dropped from…

A:

Q: 35.00 g of platinum at 398 K is placed in a styrofoam coffee cup containing 155.0 mL of water at 298…

A:

Q: How many grams of carbon are present it it requires 57.5 kJoules of energy to heat a sample from…

A:

Q: coffee-cup calorimeter contains 30 mL of water with an initial temperature of 24.8°C. An unknown…

A:

Q: sample of water with a mass of 726.2 g undergoes a temperature change from 58.32oC to 40.50 oC. What…

A: Given,  mass, m = 726.2 g Specific heat of water (l), S = 4.184 J/g. oC Temperature changes from T1…

Q: A 11.08 gram sample is heated to an initial temperature of 100 oC. The sample is then placed in a…

A: Mass of sample = 11.08 g Initial temperature = 100 ◦C Final temperature = 27 ◦C

Q: A 100.0g sample of water at 25.30 degrees Celsius was placed in an insulated cup. Then 45.00g of…

A: Given that: Mass of water = 100.0 g Initial temperature of water = 25.30°C Mass of lead pellets =…

Q: Consider the following specific heats of metals in the table below. If the same amount of heat is…

A:

Q: What mass of methane must be burned to release 185 kj of heat

A: Given reaction :  CH4 (g) + 2O2 (g) ------> CO2 (g) + 2H2O (g)  ∆H°rxn = - 890 kJ/mol

Q: 1. A 2.15-gram cashew nut is burned. The heat released raises the temperature of a 100.0-gram sample…

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

Q: The table lists the specific heat values of several substances. Substance Specific heat (cal/g. C)…

A: Specific heat capacity: The amount of heat required to increase the temperature of one gram of a…

Q: Copper is used in building the integrated circuits, chips and printed circuit boards for computers…

A:

Q: The specific heat of lead is 0.129 J / g 0C . How many joules of heat is required to raise the…

A:

Q: A9.45g piece of an unknown metal at 470.8 °C is placed into a coffee cup calorimeter containing…

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

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

A: Given: Mass of salt (m) = 20 g Specific heat capacity (c)=1.1 cal/g°C Initial temperature (T1)= 40°C…

Q: A piece of unknown metal with a mass of 23.78 g is heated in boiling water to 97.4°C and then…

A: Specific heat  of substance defined as the heat capacity  of  sample of  substance  is divided by…

Q: Volume Water 105.82 mL Initial Temperature of Water 25 °C Volume of Compound A 100 mL Initial…

A: Ques 2) Mass of compound A=100 g Calculation of the density of compound A: density=massVolume=100…

Q: Calculate how much heat is released when 100. Grams of NO is mixed with 75 grams of O2. 2NO(g) +…

A:

Q: How much heat is required to raise the temperature of 85.0 grams of water by 15.0 degrees C?…

A:

Q: Material A and material B was exposed to the same change in temperature. but the heat involved with…

A:

Q: A student heats a piece of 130 g of an unkown grayish metal to a temp. of 99.2 °C. she places the…

A: Given;

Q: How many grams of carbon are present if it requires 57.5kj of energy to heat a sample from 20.0 to…

A: Specific heat: Heat requires for system to raise temperature of substance by 1 degree Celsius or 1…

Q: A 100.0 g iron sample (specific heat 0.450 J/g K) at 100. deg C is added to 50.0 g for water at 26.5…

A: We know that, heat flows from higher temperature to the lower temperature. From the given…

Q: If 585 J of energy are absorbed by 125.6 g of aluminum and the initial temperature is from 20.0 oC,…

A: The amount of heat absorbed (or released) by fixed amount of a substance to change its temperature…

Q: A 20.94 g sample of a metal is heated to 99.4°C in a hot water bath until thermal equilibrium is…

A:

Q: How many milliliters of water at 23 °C with a density of 1.00 g/mL must be mixed with 180 mL (about…

A: Use calorimetry principle to get answer Heat flow from high temperature to low temperature. Heat=…

Q: Isooctane is a primary component of gasoline and gives gasoline its octane rating. Burning 1.00 ml…

A: The total heat released when 10.00 mL of isooctane is burned is; Q=33.0 kJ/mLq=33.0 kJ/mL×10.00…

Q: How many grams of ethanol (C2H5OH) is needed to provide/release 699.0 kJ of heat? C2H5OH(l) + 3O2(g)…

A: The given reaction is,

Q: How many grams of C5H12 must be burned to heat 1.43 kg of water from 21.0 °C to 95.3 °C? Assume that…

A: a) Given: ΔH°comb of C5H12 = –3535 kJ/mol.

Q: Based on the thermochemical equation: 4 NH3 + 5 O2 → 4 NO + 6 H2O  ΔH = -906 kJ, how many kJ of heat…

A: The chemical reaction with a balanced stoichiometry and which also includes enthalpy change is known…

Q: What would be the final temperature if 52.6 g of H2O at 29.4°C was added to 36.2 g of H2O at 89.8°C?…

A:

Q: A 1.69 gram sample is heated to an initial temperature of 75 oC. The sample is then placed in a…

A: Mass of sample = 1.69g Mass of water = 542g Initial temperature of water = 20°C Final temperature if…

Q: C3H6O) is quite flammable. If a bottle of nail polish (187 mL) burns, how much heat is released? The…

A: The mass of acetone=187 mL×0.788gmL=147.36gin a chemical reaction, some bonds are broken and some…