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what is the molar mass of gas if 0.250 g of the gas occupies 215 mL at 61 8mmHg and 30. 0C
An equilibrium mixture at 225 degrees C contains 0.10 M NH3 and 0.20 M H2 for the reaction 3H2 (g) + N2 (g) --- 2NH3(g) If the Kc at this temperature is 1.7 X 10 2.
Determine its molecular formula if the molar mass of the compound = 199.55 grams per mole?
Compute how many titanium atoms are there in 24.1 grams of titanium and also determine what is the mass in grams of 3.23E+23 atoms of titanium.
H2C2O4(aq), Ka1 = 6.5 x 10-2 and Ka2 = 6.1 x 10-5. Don't forget that Kw = 1 x 10-14. Then Determine K for the reaction
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
C6H5OH(s) + 7O2(g) --> 6CO2(g) + 3H2O(g) A 2.000 gram sample of pure phenol, C6H5OH(s), is completely burned according to the equation above.
Given the unbalanced equation: Ag2CO3 ® Ag + O2 + CO2, how many moles of Ag can be produced from 2.5 moles of Ag2CO3.
If the reaction is allowed to proceed until all substances have reached their equilibrium concentrations, determine delta G for the reaction.
A pound of coffee beans yields 48 cups of coffee. How many milliliters of coffee can be obtained from 1 g of coffee beans?
A cook wants to heat 1.35 of water from 32.0 to 100.0 .If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn.
Given that the solubility product for La(IO3)3 is 1.0 x 10-11, what is the concentration of La3+ in a saturated solution of lanthanum iodate?
Calculate the molarity of each of the following solutions: (a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution, (b) 15.4 g of sucrose (C12H22O11) in 74.0 mL of solution.
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