What is the empirical formula of pyrolusite
The mineral pyrolusite is a compound of 55Mn and 16O. If 63% of the mass of pyrolusite is due to manganese, what is the empirical formula of pyrolusite?
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A typical gas cylinder, contains 1.55 cubic feet of gas compressed at 2,200 pounds per square inch. what volume would the gas occupy at normal atmospheric pressure and the same temperature?
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A 218-kg crate is pushed horizontally with a force of 702 N. If the coefficient of friction is 0.20, calculate the acceleration of the crate.
A parallel-plate air-filled capacitor having area 48 cm2 and plate spacing 3.0 mm is charged to a potential difference of 750 V. Find the following values.
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A 1.17 g sample of an alkane hydrocarbon gas occupies a volume of 674 mL at 28°C and 741 mmHg. Alkanes are known to have the general formula CnH2n+2.
A parallel-plate capacitor has an area of 10.8 cm 2 . The plates are separated by 0.9 mm and are connected across a 60 V battery. Find the magnitude of the charge on each plate.
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