What would be the final temperature if 55.0g of H2O at 30 degrees Celsius is added to 45.0g of H2O at 95 degrees Celsius?

Q: 5. How many kilojoules are released when 8.2 g of water condenses at 100 °C and cools to 15 °C?

A: The specific heat can be defined as the amount of heat per unit mass that is needed to raise the…

Q: What is the final temperature (in °C) of 470.1 g of water (specific heat = 4.184 J/g･°C) at 24.20°C…

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Q: What is the final temperature when 145 g of ethanol at 50°C is poured into 145g of acetone at 0.0°C?…

A: heat capacity is defined as the amount of heat required for substance of mass m to raise the…

Q: 6.56 Is AH positive or negative when 1 mol of water vapor con- denses to liquid water? Why? How does…

A: For an endothermic reaction, ∆H is positive whereas for an exothermic reaction, ∆H is negative

Q: A sample of liquid water is heated with an electrical coil. If 615 Joules of energy are added to a…

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Q: How many calories of heat are needed to increase the temperature of 55 g of ethanol from 18 °C to 48…

A: Given,  55 g of ethanol from 18 °C to 48 °C

Q: How many calories of heat must be required to raise 990 grams of water at 18 °C to 97 °C?

A: Given: Mass of water, m=990 g Initial temperature, Ti=18°C Final temperature, Tf=97°C

Q: How many kilojoules are required to change the temperature of 64.5 g  of water from 22.2 oC  to 45.3…

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Q: How many kilojoules are released when 8.2g of water condenses at 100 C and cools to 15 C?

A:

Q: 1. KMnO4, OH- (warm) 2. H3O+

A: The given reaction is the oxidation of hexyne with Potassium permanganet to give pentanoic acid and…

Q: Using the molar heat of solution provided in the question above: determine how many g solid sodium…

A: The molar heat of the solution of sodium hydroxide is = -445.1 kJ/mol The volume of the water is =…

Q: -6.3 x 101 oC convert this temperature to K

A: Welcome to bartleby !

Q: How many grams of a 0 C ice must be added to 350 ml of water (which is at 20 C) to bring the final…

A:

Q: When one mole of C6H6C6H6 is burned, 3.27 MJ3.27 MJ of heat is produced. When the heat from burning…

A: Given : burning 1 mole of C6H6 produces heat = 3.27 MJ = 3.27 X 106 J…

Q: A 50g sample of an unknown metal is heated with 800 joules. If the temperature of the metal…

A: Given metal is copper

Q: Public water systems often add fluoride to drinking water because, in the proper amounts, fluoride…

A: a) Given in the question, Annual average of maximum daily air temperature = 17.8 - 21.4 For this…

Q: Is there a relationship between the final mass of the marshmallow and an increase in temperature of…

A: The relationship between the mass of burnt marshmallow and the change in the temperature of the…

Q: A 10.7-g silicon block, initially at 125.0 °C, is dropped into a Thermos flask containing 39.0 g of…

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Q: Calculate the amount of heat needed to boll 84.5 g of acetic acid (HCH, CO₂), beginning from a…

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Q: 50g sample of an unknown metal is heated with 800 joules. If the temperature of the metal increases…

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Q: What is the temperature in degree Celsius of 2 liters of water at 30 deg.C after 500 calories of…

A:

Q: When one mole of C6H6C6H6 is burned, 3.27 MJ3.27 MJ of heat is produced. When the heat from burning…

A: The number of moles of C6H6 is 1 mol. The heat released is 3.27 MJ. The weight of C6H6 is 7.87 g.…

Q: The highest temperature used in the reaction of . (a) Methane with halogens

A: The given reaction involve different quantity of heat to progress the reaction.

Q: What would be the final temperature if 55.0g of H2O at 30 degrees C is added to 45.0g of H2O at 95…

A: The amount of energy for a particular amount of matter present at specific temperature with specific…

Q: Using your new knowledge about gas temperature and pressure, why does a closed, empty soda bottle…

A: When a closed, empty soda bottle is left out in a cold car, the temperature of the air inside the…

Q: 3. What temperature change in degrees Celsius is produced when 800.0 calories are absorbed by 10.0…

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Q: How many grams of C6H, must decompose according to the following chemical equation to transfer 430…

A: The balanced equation is :- C6H6(l) ------> 3C2H2(g) Given,   ∆H = 430 KJ

Q: Two 20.0 g ice cubes at −10.0 ∘C are placed into 285 g of water at 25.0 ∘C. Assuming no energy is…

A: Given that, Mass of two ice cubes, mi = 2×20 g = 40 g Initial temperature of ice, Ti, i = -10°C Heat…

Q: Q2: Fill in blank - 1. The volume of 0.5 mol of an ideal gas at STP is 2. The enthalpy of formation…

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Q: If the initial temperature of 120. g of ethanol is 20.0°C, what will be the final temperature after…

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Q: How many calories are given off by 5 grams of 100 deg C steam that changes phase to 5 g of ice at 0…

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Q: A 10.7 g sample of aluminum at 85.3°C is added to 117 mL of water initially at 14.6°C. Assuming no…

A: Given that a 10.7 g sample of aluminium at 85.3°C is added to 117 mL of water which is initially at…

Q: A sample of lead is heated and placed in a 151.0 g container of water at 22.0 oC.  The final…

A: The heat released by the sample of lead is equal to the heat required to raise the temperature of…

Q: Potassium nitrate, KNO3KNO3, has a molar mass of 101.1101.1 g/mol. In a constant-pressure…

A:

Q: 300mL of a 2.500 M solution X was mixed with 300.0 mL of a 2.500 M solution Y in a calorimeter. Both…

A: Given that,  Volume of 0.2500 M X solution  = 300 mL Volume of 0.2500 M Y solution = 300 mL Total…

Q: A 25.0 g sample of molten iron releases 1230 cal as it cools from 2000 °C to its freezing point,…

A: Iron at 20000C is in its molten state.

Q: If you have 0.381 m30.381 m3 of water at 25.0 ∘C25.0 ∘C in an insulated container and add 0.107…

A: Use principle of calorimetry  Heat flow from high temperature to low temperature  Q= mC∆T

Q: Calculate the final temperature when 82.4 g cadmium at 412 oC is placed in 185 g water at 20.9 oC

A: Using the equation,

Q: how many calories are required to raise the temperature of 255g of water from 42c to 75c?

A:

Q: How many grams of water can be heated from 16.0 °C to 95 °C using 125 kJ?

A: Since you have posted multiple questions, we are entitled to answer the first only.

Q: M9SO4 Mass of salt, g 15.0 Molar mass of salt, g/ 120.366 mol Moles of salt, mol 1.25x10^-1 Volume…

A: The data given is,

Q: How much water at 0°C is added to 300 g of water at 100°C to make the temperature 60°C? а. 100 g b.…

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Q: A block of copper(0.230 mol) starts at 15.5 degrees Celsius. What is the final temperature of cu if…

A: To calculate, the amount of heat released or absorbed for a process, the equation used is: q = m ×…

Q: A student is trying to freeze a solution of urea in the lab where the temperature is around 22°C.…

A: Depression in freezing point of solution = i ×Kf ×m Where Kf = molal freezing point depression…

Q: If you combine 310.0 mL of water at 25 degrees Celsius and 140.0 mL of water at 95.00 degrees…

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Q: The temperature of 328.6 mL of Ne is changed from 274.49°C to 14.27K. What is the new volume of the…

A: Given,V1=328.6mL           T1=274.49°C+273.15=547.64KV2=?                         T2=14.27KWe have…

Q: How many grams of C₆H₆ must decompose according to the following chemical equation to transfer 430…

A: GIVEN: Reaction: C₆H₆(l) → 3 C₂H₂(g)          ∆H = 630 kJ To Solve: Grams of C₆H₆=?

Q: A 20 g sample of ice at -10 °C is mixed with 100 g water at 80 °C. Calculate the final temperature…

A: Heat required by ice to convert into water at 0 oC = ms(Tf-Ti) + mLf…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.