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For a certain gas that contains merely carbon and hydrogen the mass percentage of hydrogen is known to be 14.37. It is as well known that 3.08g of the gas has a volume of 1.00L as well as a pressure of 0.970atm at 50.1 degrees Celsius. Explain what is the molecular formula for the gas?
A C^+5 ion in the n= 5 state moves to the n=7 state.Calculate the energy (E) change associated with this transition. Also, calculate the frequency, and wavelength of light which have this same energy and indicate whether light is emitted or absorb..
1. what is the molality of a solution that contains 3.0g urea molecular weight 60 amu in 100g of benzene?2. calculate
Explain A silver block, initially at 56.2 C, is submerged into 100.0 g of water at 24.4C, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 27.4 C. Define What is the mass of the Silver Block
determine the molarity of a saturated nai sodium iodide solution aqueous formed as twenty five degree celsius
Is the amount of sodium bicrbonate sufficient to react with benzoic acid. The amount of Benzoic Acid in ex. 1 is 0.060 Grams
Consider 4 L of a buffer composed of 2 M HCN and 3 M NaCN? How many moles of strong acid could this buffer withstand?
A 20.2 g piece of solid Iron, Fe(s), is heated to 66.1 degrees Celsius and is dropped into a 50.0 g of water at 32.4 degrees Celsius. The specific heat of Fe(s) and water are 0.45 J/gC and 4.184 J/gC, respectively. What is the final temperature of..
The rate of effusion of a particular gas was measured as well as found to be 24.0mL/min. Under the same conditions, the rate of effusion of pure methane (CH4) gas is 47.8 ML/min. Explain what is the molar mass of the unknown gas
A gas has a volume of 590 mL at a temperature of -55.0C. What volume will the gas occupy at 30.0C.
25.00mL of an acetic acid solution requires 23.86mL of a 0.1550M potassium hydroxide solution to reach the endpoint. What is the molarity of the acetic acid solution
Calculate the entropy change in the surroundings associated with this reaction occuring at 25 degrees C. Show all your calculations. The change in enthalpy for the reaction is +163.2 kJ. 2N2(g) + O2(g) ---> 2N2O(g)
A balloonn containing a sample of Helium gas is warmed in an oven at constanst pressure. If the balloon measure 1.25 l at room temperature (20c), what is it volume at 98 c
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