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answer the below questions with correct figures
A cylinder contains 30.5 L of oxygen gas at a pressure of 1.6 atm and a temperature of 300 K .
How many moles of gas are in the cylinder?
Express your answer using two significant figures.
if the pressure exerted by ozone o3 in the stratosphere is 3.010-3 atm and the temperature is 250 k how many ozone
consider the titration of 25 mL of .25 M NH3 with .05M HBr .What is the pH at the equivalence point?
Write down a net ionic equation for any reaction that forms a precipitate and discover the anions that make gas upon adding of hydrochloric acid
Calcium carbide, CaC2, reacts with water to form acetylene. CaC2(s) + 2 H2O(l) -> C2H2(g) + Ca(OH)2(s)
The activation energy of the orginal pathway is 106 KJ/mol. What is the activation energy of the new pathway, all other factors being equal?
A pstient is administered mercury-197 to help evaluate kidney fuction. Mercury-197 has a half - life of 65 hours. what fraction of an initial of an initial does of mercury
what is the mass of hydrogen gas released from 2.70 g of aluminum metal and hydrochloric acid?2 als 6 hclaq 2 alcl3aq
What is the molarity of C6H12O6 in an aqueous solution that is prepared by dissolving a 20.95 g sample of impure C6H12O6 in water to make 1,450 mL of solution.
Compute G at 298 K if the reaction mixture consists of 6.9atm of H2, 5.0atm of F2, and 0.47atm of HF.
Ammonia can be made by reacting calcium cyanamide (CaCN2) with water as shown: CaCN2 + 3 H2O => CaCO3 + 2 NH3. How many grams of water are required to react with 212.9 g of calcium cyanamide
The capacity of batteries such as the typical AA alkaline battery is expressed in units of milliamp-hours (mAh). An "AA" alkaline battery yields a nominal capacity of 2850 mAh.
25.0 mL of ethanol (density = 0.789 g/mL) initially at 7.4°C is mixed with 32.1 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
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