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What is the capacity of a hopper a container that can hold and dispense bulk material such as grain rock or


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1.When 15.0 mL of 3.00 M NaOH was mixed in a calorimeter with 13.0 mL of 3.00 M HCl, both ...

room temperature (22.0 °C), the temperature increased to 29.1 °C. The resultant salt solution had a mass of 18.00 g and a specific heat capacity of 3.74 J K-1 g-1. What is the heat capacity of the calorimeter (in J/°C)? Note: The molar enthalpy of neutralization per mole of HCl is -55.84 kJ mol-1.
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2.A weather balloon has a capacity of 11 ft3 . It is filled with hydrogen at a constant rate. Initially, the balloon ...

itially, the balloon contains 4 ft3 of hydrogen and it takes 14 seconds to com- pletely fill the balloon. (a) At what rate is the balloon filled? (b) Find a linear function V that models the volume of hydrogen in the balloon at any time t. (c) What can you say about the graph of V ? (You do not need to sketch the graph.)
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1.AU MAT 120 Systems of Linear Equations and Inequalities Discussion

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