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How many moles of helium are in the tank? Express your answer using three significant figures. Constants A 12.0 L tank contains 4.46x104 kg of helium at 19.0 °C. The molar mass of helium is 4.00 g/mol. You may want to review (Pages 585-590) For related problemsolving tips and strategies, you may want to view a Video Tutor Solution of Volume n-61.25 mol SubmitP Previous Answers Reguest Ans X Incorrect, Try Again; 8 attempts remaining: no points deducted Part B What is the pressure in the tank (in pascals)? Express your answer using three significant figures. p 5049858.33 Submit revious Answers Request Ansboth please

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