Determine the mass of the steel bar
80.0 of is initially at room temperature (22). A chilled steel rod at 2 is placed in the water. If the final temperature of the system is 21.5, what is the mass of the steel bar?
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A tank at is filled with of carbon dioxide gas and of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions.
A 20 mL solution of Ti2+ (40 mM) can be oxidized by reacting with iron ions from FeCl3. A titration is performed with a saturated calomel reference electrode (S.C.E.) as the anode and a platinum wire as a cathode. Determine the cell potential at v
Two blocks A and B are arranged with pulleys as shown. Block A has an initial velocity (t = 0s) to the left of vA=1.2 m/s. Block B has a constant acceleration of aB=0.40 m/s2 downwards.
When strongly heated, magnesium sulfide formed a crystalline deposit on the walls of a sealed reaction vessel. Metallic deposits were found on the bottom of the container. What is the equation and the type of reaction?
Calcium hydride, CaH2, reacts with water to form hydrogen gas. How many grams of CaH2 are needed to generate 13.0 L of H2 gas if the pressure of H2 is 770. torr at 16°C?
A compound gives a mass spectrum with peaks at m/z = 77 (40%), 112 (100%), 114 (33%), and essentially no other peaks. Identify the compound.
The vessel contains 2.00 moles of hydrogen, 2.00 moles of argon, and 5.00 moles of methane. What is the partial pressure of hydrogen?
A 250-kg crate B is suspended from a cable attached to a 20-kg trolley A which rides on an inclined I-beam as shown. Knowing that at the instant shown the trolley has an acceleration of up to the right.
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