A chemist carefully measures the amount of heat nee experiment shows that 205. J of heat are needed. W significant digits. -1 -K 1 X

Q: Use decimal notation to express 4.22 mg in grams?

A: When we convert grams to milligrams, the conversion factor is

Q: Two units of measurement for energy are calories and joules. The measurement of 32.3 kj is the same…

A: Energy can be measured in Joules as well as in Calories and Joule is the SI unit of energy.…

Q: A 20oz soda bottlw has 240 calories How much energy, in units of kJ, does that soft drink supply the…

A: A 20oz soda bottlw has 240 calories.Energy = 240 caloriesEnergy = ? kJ Note: As we know that,1…

Q: Is wood burn change? a physical or chemical O Physical O Chemical

A: Burning of wood is physical or chemical change ?

Q: How much heat, in units of Joules, is needed to warm 667.7 g of copper from 17 °C to 59 °C? The…

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Q: Calculate the kinetic energy of a 133.mg raindrop moving at a speed of 7.0m/s

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Q: cal BTU Convert 1 g - °C to lbm - °F

A: Cal/g °C =The heat needed to raise the temperature of 1gm of water bt 1°C. BTU/lb °F = The heat…

Q: You burn a 0.6 g jellybean to warm 13 g of water, which increases the temperature of the water 2 °C.…

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Q: Using the data in the table, determine the rate constantof the reaction and select the appropriate…

A: . Given ,               A+2B→C+D According to rate law               K→rate constant .…

Q: Calculate the amount of heat needed to boil 33.8 g of water (H₂O), beginning from a temperature of…

A: Mass of water = 33.8 g Specific heat of water = 4.184 J/g°C Initial temperature = 41.9 °C

Q: Calculate the amount of heat needed to boil 30.2g of water (H2O), beginning from a temperature of…

A: Specific heat capacity is the heat that must be applied to increase the temperature of 1 g of the…

Q: How can I calculate this following this formula?  Ecell = E°cell - RT/nF lnQ

A: Answer: This quetsions demands the explanation of the values used in the original solution.

Q: what volume of water (in ml), initially at 54.3 C, needs to be mixed with 146ml of water, initially…

A: The formula used here is given below q=mC∆Twherem is the mass of sampleC is the specific heat and∆T…

Q: Katz's deli in NYC makes its Reuben sandwich with corned beef, sauerkraut, swiss cheese, and Russian…

A: The law of multiple proportion is applicable only to those compounds in which two different…

Q: After 54.0 min, 24.0% of a compound has decomposed. What is the half-life of this reaction assuming…

A: in first order reaction half life depends only on rate constant.    t 1/2  =0.693/K Where k= rate…

Q: How many Calories are in 4406 J? Round to two decimal places.

A: The magnitude of a quantity in one unit can be converted to the other unit by addition, subtraction,…

Q: Calculate the amount of heat needed to boil 96.0 g of ethanol (CH₂CH₂OH), beginning from a…

A:

Q: Convert 780. J to kJ

A: Given :  We have to convert 780 J to KJ.

Q: The boiling point of hydrogen is -253 oC. What is this temperature in Kelvin? -20 K…

A: In this question, we have to to do conversion of boiling point of hydrogen -253°C into Kelvin unit.

Q: Convert -250.0 °F to its equivalent value in K.

A:

Q: CHEMISTRY (Please write the complete solution legibly. Choose the correct answer. No long…

A: Specific heat capacity of a substance is the amount of heat required to raise the temperature of…

Q: When 38.9J of heat are added to 16.2g of liquid, its temperature rises by 1.93 degrees celcius. What…

A:

Q: report the answer with the proper number of significant figures. 1.012×10−3 J/(0.012456…

A: Rule of significant digit- 1) In non decimal number, 0 comes after non-zero not count in significant…

Q: A new linear temperature scale, degrees Zunzol (Z), is based on the freezing point and boiling point…

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Q: 586 cal to joules.

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Q: 1 calorie is equal to 4.184 joules. true or false

A: The question is asking to verify the equivalence between the units of energy, calorie and joule.

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

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Q: Calculate the amount of heat needed to boil 11.8 g of hexane (CH4), beginning from a temperature of…

A: We have to calculate the amount of heat needed to boil 11.8 gm of hexane beginning from a…

Q: What is the final temperature (in °C) of 5.01 g of water (specific heat = 4.184 J/g °C) at 24.20 °C…

A: Mass of water(m) = 5.01 g Heat absorbed (Q) = 950.0 J Specific heat (c) = 4.184 J/g°C Initial…

Q: What is the reason behind this? Inorder to measure the temperature of a object accurately, simple…

A: Temperature is the property that is related to the amount of heat that is present in an object. The…

Q: 9. Which of the following statements does not describe a physical property of chlorine? A) Chlorine…

A: 9. Physical properties - Properties that can be measured without changing the identity of a…

Q: Calculate the amount of heat needed to boil 126. g of water (H₂O), beginning from a temperature of…

A: The amount of heat required to raise the temperature is calculated using the following equation:

Q: etic energy is the energy of motion The following two experiments were designed to explore nether…

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Q: 1. Perform the following temperature conversions: a) 58.0°C = ? °F c) 45°C = ? K %3D b) 12°F = ? °C…

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

Q: A sheet of gold weighing 9.6 g and at a temperature of 16.4 °C is placed flat on a sheet of iron…

A: GivenMass of gold = 9.6 gThe initial temperature of gold = 16.4 °CMass of iron = 18.5 gThe initial…

Q: Calculate the amount of heat needed to boil 162 g of ethanol (CH3CH2OH), beginning from a…

A:

Q: Rewrite this measurement with a simpler unit, if possible. gmL g 10.0 gmLmL s

A:

Q: If a 33.76 gram piece of porcelain which has a specific heat of 1.07 J/goC absorbs 1,936.56 J of…

A: Given: Mass of the porcelain piece is 33.76 g. Specific heat is 1.07 J/g °C. The energy absorbed is…