5) A small plastic container, called the overflows when an automobile engine bec

Question

5) A small plastic container, called the overflows when an automobile engine becomes hot. The radiator is made of sluminum and the coolant has an expansion coefficient of 3.8x10 (CyIf the radiator is filled tots 25 L capacity when the engine is cold (IOC), how much overflow will spill into the reservoir when the coolant reaches its operating temperature (101? coolant reservoir, catches the radiator uaild that 6) The calorimeter is made of 0.10 kg of silver and contains 125 g of water. Initially, the water and cup have the same temperature of 170C. A 87 g mass of unknown material is heated to a temperature of 105.0°C and then added to the water. After thermal equilibrium is reached, the temperature of the water, the cup, and the material is 28.0rC Igmoring the small amount of heat gained by the thermometer, fiad the specific hest capacity of the unknown material. 7) A mass of 15 g of an element is known to contain 5,25 x 10 atoms. What is the atomic mass of the element?

Explanation / Answer

Moles = 5.25x10^22 / 6.022x10^23 = 0.087

At. Mass of element = Mass/Moles = 15/0.087 = 172.4 g/mol

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