The table lists the specific heat capacities of select substances. Substance Specific heat capacity (J/g °C) lead 0.128 silver 0.235 copper 0.385 iron 0.449 aluminum 0.903 water 4.184 An unknown substance has a mass of 16.1 g. The temperature of the substance increases by 18.7 ∘C when 70.8 J of heat is added to the substance. What is the most likely identity of the substance? copper silver iron lead aluminum water

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: Sodium chloride is added in cooking to enhance the flavor of food.  When 10.0 g of NaCl is…

A: Given that 669 J of heat is absorbed. q = +669 JAs heat is absorbed in the reaction from water in…

Q: A 7.37 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: A 4.79 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Calorimetry is the easiest way to calculate the amount of heat transfer to a substance or from a…

Q: A metallic radiator is made of 26.0 kg of iron, the specific heat of iron is 0.449 J/g°C. How much…

A: Given: Mass of Iron =26.0 kg =26000 g Temperature change, ∆T=(55.0-25.0)°C=30 °C The heat needed q…

Q: calorimeter containing 837 mL of 1.10 M acid, where the acid has a 1 to 1 molar ratio with sodium…

A: We will calculate ∆H in Kj/mol

Q: The table lists the specific heat capacities of select substances. Substance Specific heat capacity…

A: The amount of heat required to increase the temperature of the 1 g of the substance by 1 degree is…

Q: emist carefully measures the amount of heat needed to raise the temperature of a 360.0 g sample of a…

A: Specific Heat capacity is amount of heat required to increase the temperatures of one gram of…

Q: How much will the temperature of a cup (183 g) of coffee at 96.1 °C be reduced (in °C) when a 45 g…

A: The problem is asking us to find the final temperature of the coffee after a silver spoon is placed…

Q: A chemist carefully measures the amount of heat needed to raise the temperature of a 0.53 kg sample…

A: We know that  Q = m*s*ΔT        ----------(1) Where, Q is heat energy               m is mass of…

Q: The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7 kJ/mol.…

A: Given,  The change in enthalpy (heat of solution) for ammonium nitrate dissolving in water is 25.7…

Q: Consider the following reactions:                  C2H6 (g)  +  7/2 O2 (g)  →  2 CO2 (g)  +  3 H2O…

A:

Q: A student performs a calorimetry experiment. The student combines 100. g of 0.40 M HC1(aq) with 100.…

A: Heat absorbed by the particular species = mass × heat capacity × temperature change

Q: A piece of iron is heated to 95 °C and dropped into 150 g of water at 25 °C. When equilibrium is…

A: Given, Let m ass of iron= mi=?

Q: D4, is used Calculate 10, from 25 perature of heat lorate is

A: Heat(Q) = mass(m) • specific heat capacity (C) • ( T2 - T1 )  Where : specific heat capacity =…

Q: A 4.77 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: A student heats 68.15 grams of silver to 98.73 °C and then drops it into a cup containing 78.21…

A: All the information is given in question  Mass of silver and temperature  Mas software water and…

Q: A 148.9-g sample of a metal at 74.6°C is added to 148.9 g   at 14.7°C. The temperature of the water…

A: The mass of the metal is .The initial temperature for metal is .The final temperature for metal is…

Q: 151.0-g sample of a metal at 75.0°C is added to 151.0 g H20  at 14.2°C. The temperature of the water…

A: Solution:     Specific heat is defined as the amount of heat required to raise the temperature of a…

Q: A piece of unknown metal with a mass of 22.03 g is heated in boiling water to 90.34°C and then…

A: Given;

Q: A 4.77 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: Calculate the heat capacity (in J/C) of 20.0 mL of room temp. water given that the specific heat…

A: Heat capacity of a material for a particular mass = Specific heat capacity  mass of the material

Q: A student conducts a calorimetry experiment on an unknown metal object. The unknown metal object…

A: Given : The total amount of heat absorbed by the water = 2310 J Mass of metal = 82.522 g Initial…

Q: Given that 154.81 g of solution increased in temperature by 4.82 °C, how much heat, in J, was gained…

A:

Q: The temperature of an object increases by 39.4 °C when it absorbs 3715 J of heat. Calculate the heat…

A: Given, Mass of the object (m) = 393 g Change in temperature (∆T) = 39.4 °C  Heat absorbed (Q) = 3715…

Q: propane (C:H8) produces 2220 kJ of = consumed. What mass in grams of eat 55.0 gal of bathtub water…

A: According to the question, the combustion of propane will produce 2220 kJ of energy per mole.  We…

Q: The standard enthalpy change for the following reaction is -56.0 kJ at 298 K. Na(s) + 1/2 H₂(g)…

A: Important points needs to be remember for enthalpy change If a given chemical reaction is reversed…

Q: 2) When 100 g of unknown metal at 100 °C added to a calorimeter containing 50.00 g of water the…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: A student mixes 67.0 mL of a 2.01 M sodium hydroxide solution with 22.4 mL of 6.45 M hydrochloric g…

A:

Q: An unknown substance has a mass of 25.9 g. The temperature of the substance increases from 28.7 °C…

A: Mass of Unknown (m) =25.9 g Change in Temperature (ΔT) = 42.9°C - 28.7°C = 14.2 °C Heat added (q) =…

Q: The table lists the specific heat capacities of select substances. Substance Specific heat capacity…

A: Given that:  Mass of unknown substance(m)= 10.5g  Heat (q) = 53.8J dT = 13.3°C

Q: The burning of 1.5 g of vegetable cause the temperature of 58.18 g of water in a soda can…

A:

Q: A 6.61g sample of an unknown salt (MM=116.82g//mol) is dissolved in 150.00g water in a coffee cup…

A: The hear transfer (q) in a process is given by           Where, q = amount of heat transfer…

Q: A 5.71 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Mass of unknown salt dissolved in 150.00 g of water = 5.71 g Molar mass of the salt  = 116.82 g/mol…

Q: Classify the reaction endothermic or exothermic and give the change in enthalpy of the reaction.…

A: Endothermic and Exothermic reaction: Endothermic reaction : In endothermic reaction the heat energy…