2.50 g sample of gallium absorbe 4.56 x 10^-3 kj of heat upon heating. What is the change of temperature in unit of degree Celsius of the gallium sample? Specific heat of gallium is 0.372 J/g °C

Q: If the specific heat of iron is 0.449 Jg°C , how much iron is in your sample if 925 J were required…

A: Given, specific heat capacity of iron (CpIron) = 0.449 J/g°C  Amount energy required (Q) = 925 J…

Q: 1. The temperature of a 15.0 g sample of a metal (specific heat 0.040 J/g.°C) is raised by 18.2°C.…

A: Using relation:  Q = m×s×∆T     -----(1) where Q is amount of heat absorbed m is mass of substance s…

Q: 5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat Cu? (Specific heat…

A: Using formula  Q = m c ∆ T  Where , m= mass = 5 g  Q = energy = ?    c= specific heat = 0.092 cal /…

Q: new alloy is designed for use in a car radiator. If the 17.6 kg radiator required 8.69 × 105 J of…

A:

Q: 4. What mass of water would absorb 7.00 × 10² cal of heat if the temperature is increased from…

A: Heat of a reaction is defined as the heat  produces or absorbed during the reaction which can be…

Q: What was the initial temperature (in oC) of a 38.13 g sample of aluminum (specific heat = 0.900 J/(g…

A: Given :-  Mass of substance = 38.13 g  Specific heat = 0.900 J/g.K  Heat  = -1.077 kJ  Final…

Q: How much would the temperature of 295 g of water increase if 17.4 kJ of heat were added? (the…

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Q: The standard enthalpy change for the following reaction is -340 kJ at 298 K. AH° -340 kJ 4 Cu(s) +…

A: We know that for a reaction Enthalpy change for a reaction depends on the stoichiometry of a…

Q: Determine the heat capacity of 20.0 g of water. The specific heat of water is 4.184 J/g °C

A: Given  Mass of water m=20g Specific heat capacity S= 4.184 Jg-1 °C-1

Q: A 4.81 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A: Solution :        The heat of dissolution is defined as an enthalpy change related to the…

Q: Calculate the mass of gold that absorbs 46.3 J of energy when heated from 25 to 74 oC. Specific…

A:

Q: When 0.378 g of sodium metal is added to an excess of hydrochloric acid, 3930 J of heat are…

A: Given-> Weight of Na = 0.378 g Heat produced for 0.378 g = 3930 J  (1 KJ = 1000 J)

Q: 35. What is the amount of heat required to raise the temperature of 200.0 g of aluminum by 10°C?…

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Q: Arrange the metals in order of increasing final temperature when equal masses of Cr (c = 0.45…

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Q: The evaporation of water is endothermic H2O(l)+44.01kj------>H2O(g) If 275kj of heat is absorbed,…

A: Given reaction,      H2O(l) + 44.01kj → H2O(g)   Calculate the moles of H2O evaporated,         275…

Q: How much heat is needed to warm 250 g of water (about 1 cup) from 22 °C (about room temperature) to…

A: Given information: Mass of water = 250 g Initial temperature (Ti) = 22 oC Final temperature (Tf) =…

Q: A piece of gold (specific heat of 0.129 J/g oC) at 190 oC is placed in 165 mL of water. The initial…

A: The heat lost by the piece of gold is absorbed by water. The amount of heat absorbed by water can be…

Q: How many kilojoules of heat will be released when exactly 1 mole of iron, Fe, is burned to form…

A: The reaction for standard enthalpy of formation of Fe2O3 is depicted by equation.

Q: The standard enthalpy change for the following reaction is 401 kJ at 298 K. 2 CH3OH(g)2…

A: • Given,         2 CH3OH(g) → 2C(s,graphile) +4H2(g)+O2(g),                              ∆H°=401 KJ…

Q: How much heat must be absorbed to raise the temperature of 1.0 mole water from 0.0 °C to 25.0 °C?…

A:

Q: Only question7 plz

A: Given that:                            Mass of the copper (m) = 22.6 g…

Q: The standard enthalpy change for the following reaction is -763 kJ at 298 K. Ti(s) + 2 Cl2(g)…

A: The enthalpy change for the backward process the equal in magnitude but opposite in sign to the…

Q: What amount of heat must be supplied to 2.0 x 10-2 kg of nitrogen (at room temperature) to raise its…

A: The amount of energy which is transmitted due to the temperature difference between two system is…

Q: How much heat, in joules, must be added to a 75.0 g block of a metal alloy with a specific heat of…

A: Given, Mass of the substance, m = 75.0 g Initial temperature, T1 = 25 oC Final temperature, T2 = 775…

Q: 5.0 g of copper was heated from 20°C to 80°C. How much energy was used to heat the Cu? (Specific…

A: q = mc∆T  q is the amount of heat energy required  m is the mass of substance  c is the specific…

Q: Suppose that 4.65 grams of X (MW = 25.94) are dissolved in 536 mL of water, and the water…

A: Given a substance X that is dissolved in water. What is the enthalpy of dissolution of X when 4.65g…

Q: When 0.278 g of sodium metal is added to an excess of hydrochloric acid, 2890 J of heat are…

A: The balanced reaction given is, => 2 Na (s) + 2 HCl (aq) → 2 NaCl (aq) + H2 (g) Given: Mass of Na…

Q: Why water has a very high specific heat capacity in comparison to other metals ? Please give a few…

A: Heat capacity:  Heat capacity : This property of a substance is defined the maximum heat that the…

Q: The reaction between sodium metal and chlorine gas produces 822 kJ of heat energy for every chlorine…

A: GIven, Mass of Na = 4.595g

Q: 2. Mercury (II) oxide is a reddish mineral that is used as the cathode in mercury batteries. It is…

A: In the above question the heat energy require to prepare 2 mole Hg have given . We have to calculate…

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy (in…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: The standard enthalpy change for the following reaction is -479 kJ at 298 K.

A: 1) Heat energy change at constant temperature and pressure is called enthalpy change (or) Heat of a…

Q: A 368g mug at 23 celcius was warmed to 72 c with coffee. The specific heat of typical ceramic coffee…

A:

Q: 19.  How much will the temperature of a cup (180 g) of coffee at 95 °C be reduced when a 45 g…

A:

Q: The standard enthalpy change for the following reaction is -731 kJ at 298 K. 2 N2(g) + 4 H2(g) + 3…

A: Rule : on dividing the reaction with any constant, the value of enthalpy change also gets divided by…

Q: How much heat does an aluminum block absorb if 10.00 grams are heated from 25.0oC to 50.0oC? the…

A: Mass of aluminium block = 10.00 g Specific heat of aluminium = 0.9025 J/g˚C Heat absorbed can be…

Q: When 0.215 g of sodium metal is added to an excess of hydrochloric acid, 2230 J of heat are…

A: Enthalpy is a thermodynamic property which is equal to the heat content of the system.

Q: What is the specific heat of a 74.01g piece of an unkown metal that exhibits a 45.2 Celcius…

A:

Q: What is the change in temperature (ΔT) when a 25.0 g block of aluminum absorbs  1.00 kJ of heat? The…

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Q: The standard enthalpy change for the following reaction is -112 kJ at 298 K. 2 Na(s) + H2(g)…

A: The standard enthalpy change for this reaction at 298 K has to be determined

Q: What amount of heat is needed to raise the temperature of a 12.7 g piece of aluminum (specific heat…

A: Given that: mass of aluminum = 12.7 g initial temperature, T1 = 23.5 °C  final temperature = 72.0°…

Q: The standard enthalpy change for the following reaction is -576 kJ at 298 K. 2 Na(s) + I2(s) –→ 2…

A: Given,

Q: 4. The specific heat of water is quite high at 4.184 J/gC. Explain how life on this planet would be…

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

Q: The specific heat of copper is 0.0920 cal/g °C, and the specific heat of silver is 0.0562 cal/g °C.…

A:

Q: 6. The autoionization constant of water (Kw) has a value of 2.00 x 10-14 at 25.0°C. This value…

A: Autoionization of water is the self ionization of water to produce H3O+ and OH- ions.The equation is…

Q: The specific heat of aluminum is 0.900 J/g°C. What is the heat capacity of 26 g aluminum?

A:

Q: A 5.43 g sample of an unknown salt (MM = 116.82 g/mol) is dissolved in 150.00 g water in a coffee…

A:

Q: The standard enthalpy change for the following reaction is -135 kJ at 298 K. 1/2 N2(g) + 1/2 H2(g)…

A: Basic Rule If any number is multiplied in the reaction Then that number is also multiplied in the…

Q: Titanium metal is used as a structural material in many high tech applications such as jet engines.…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: Given the standard enthalpy changes for the following two reactions: (1) N2(g) + O2(g) →2NO(g) AH° =…

A: According to Hess's law, when a reaction occurs in more than one step than the enthalpy change of…