Calculate the amount of heat needed to melt 173. g of solid benzene (C,H) and bring it to a temperature of 40.0 °C. Round your answer to 3 significant digits. Also, be sure your answer contains a unit symbol.

Q: Solid copper(II) chloride forms a hydrate of formula CuCl2 ⋅ xH2O. A student heated a sample of…

A: Here we are required to find the percentage of anhydrous copper chloride

Q: How much solution could be heated to boiling by the heat evolved by the dissolution of 22.5 g of…

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

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Q: A cylinder with a movable piston contains 2.00 gg of helium, HeHe, at room temperature. More helium…

A: Avogadro’s law states that the volume of a gas is directly proportional to its molar amount at…

Q: how many joules are there in 71.8 kcal (1 cal 4.184 j) remember to use the significant figure rule…

A: Approach to solving the question: Detailed explanation:Examples: Key references:

Q: A student obtained a solid product in a laboratory synthesis. To verify the identity of the solid,…

A: Melting point can be used to determine the purity of a compound. Pure substances have a sharp…

Q: Fe(s)+S(l)→Fe2S3(s)Fe(s)+S(l)→Fe2S3(s) Express your answer as a chemical equation. Identify all of…

A: Given unbalanced chemical equation is Fe(s) + S(s)→Fe2S3(s)  The equation in which the number of…

Q: Calculate the amount of heat needed to melt 162. g of solid ethanol (CH3CH₂OH) and bring it to a…

A: Given,mass of ethanol = 162. gFinal temperature = -41.1 0CFrom the reference,melting point of…

Q: Convert the melting point of gold, 1337.4 K, to degrees Celsius

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Q: Calculate the amount of heat needed to boil 148. g of hexane (C6H₁4), beginning from a temperature…

A: For given question there is to find energy needed for boiling of hexane from -45.5 degrees Celsius.

Q: 12. Pure chlorine enters a process. By measurement it is found that 2.4 kg of chlorine pass into the…

A: Molar Flow Rate  : It can be defined as the no of moles (n) of a substance passed through a line per…

Q: While excavating ancient remains, an archaeologist discovers a box of minted coins. The nineteen…

A: Given: Mass of coins = 1.23 lbs. Melting point of coins = 1981 oF And the change in volume of the…

Q: Tom measures a balloon to have an initial volume of 306.4 ml. When he causes the temperature of the…

A: Using Charles's law we get the answer

Q: Group 1 & 2 Consider a steel cylinder with an inner height of h = 1.000 m and an inner diameter of d…

A: Group 1 & 2 -    Given - Height of cylinder , h = 1.000 m = 100 cm Diameter of the cylinder , d…

Q: Calculate the amount of heat needed to boil 25.2 g of water (H₂O), beginning from a temperature of…

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Q: A Chemistry 20 student uses a thermometer and a hot plate and measures the boiling point of ethyl…

A: given that, observed boiling point of ethyl alcohol = 74.3 ºCactual boiling point of ethyl alcohol =…

Q: Calculate the amount of heat needed to melt 27.6 g of solid acetic acid (HCH,CO₂) and bring it to a…

A: Amount of acetic acid, m = 27.6 g  We have to calculate the amount of heat needed to bring the…

Q: Calculate the amount of heat needed to boil 108. g of methanol (CH₂OH), beginning from a temperature…

A: To calculate the amount of heat needed to boil 108 g of methanol (CH3OH) starting from a temperature…