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Determine the empirical formula of the amino acid
given an amino acid which consists of the elements carbon, hydrogen, nitrogen, and oxygen.
When a 426 mg sample of the amino acid is burned, 631 mg of carbon dioxide and 301 mg of water are formed.
In a separate observation, the same amount of sample of amino acid is boiled in excess sulfuric acid, then neutralized with sodium hydroxide to convert all of the nitrogen into NH3. The NH3 is then titrated with HCl :a total of 174 mg of HCl is required to consume all of the NH3.(The balanced titration reaction is: NH3 + HCl --> NH4Cl ).
From this information, determine the empirical formula of this amino acid.
Determine the mass of Al is needed to combine with 3.077 kilo grams of Ammonium per chlorate NH 4 ClO 4 for this reaction? express your answer in units of g
You have prepared a saturated solution of at 20 degree celcius using 31.0 of water. How much more solute can be dissolved if the temperature is increased to 30 degree celcius.
Calculate concentration of NaClO solution from that equation and calculate How many grams of this nuclide in a sample of 4.00 g will remain after 112 years?
Calculate the density of propanol C3H8O if you know that there are 1.069×10 25 molecules of propanol in 1.35 L.
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
1.0 atm pressure of oxygen is 0.041g/L. The solubility of oxygen in water at 3.0 atm and 25 C is _____ g/L.
Give explanation for arrangements how you decide the boiling points comparison - Arrange all these compounds in order of increasing boiling points
calculate that how many liters of carbon monoxide gas, measured under the same conditions, is essential?
If a 2.1 L reaction vessel initially contains 725 torr of cyclopropane at 485 degrees C , how long will it take for the partial pressure of cylclopropane to drop to below 102 torr .
determine how many grams of CaH 2 are required to generate 145 Litres of hydrogen gas if the pressure of hydrogen is 825 mm Hg at temperature of twenty one degree Celsius? .
2SO2(g) + O2(g) 2SO3(g) Suppose the volume of this system is compressed to one-half its initial volume and then equilibrium is reestablished.
Given the following data H Cl bond enthalpy = +431 kJ/mol, ?Hf HCl(g) = -92.31 kJ/mol
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