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An unknown Gas is placed in a 1.50 L bulb at pressure of 356mm Hg and a temputure 22.5c and is found to weight 0.9266 g. What is molecular mass of the gas use the ideal gas law to determine the answer
a beaker with 130ml of an acetic acidbuffer with a ph of 5.00 is sitting on a benchtop. the totalmolarity of acid and
seperate two compounds efficiently, what alternatives would one consider to effect clean separation by distillation?
The amount of energy needed to heat 2.00 g of carbon from 50.0°C to 80.0°C is 42.6 J. The specific heat capacity of this sample of carbon is ?
what are the principal causes for the differences in conductances of isomolar solutions of kno3 hno3 cano32 and
Butane (C4H10) is used as a fuel where natural gas is not available. How many grams of butane will fill a 3.50 liter container at 35.6ºC and 758 torr
Write the equation for the esterification reaction between ethanol and acetic acid (ethanoic acid), Write the equation for the esterification reaction between ethanol and acetic anhydride(ethanoic acid anhydride)
Question- 1) What is the magnitude of the energy of a bond formed between a potassium (K+) cation and an iodide (I-) anion? The ionic radii of K+ and I-?, are 152 pm and 206 pm, respectively. Assume the Born exponent n is 10. Please write your ans..
In a separate experiment, it was found that, for fixed temperature and pressure, a 0.100 L sample of this compound takes 1.73 times longer to effuse than does a 0.100 L sample of Ar(g). What is the molecular formula of the compound? , draw possibl..
What are the main greenhouse gases? What is the present level of atmospheric carbon dioxide? Why has carbon dioxide concentration risen since 1860?
Find the velocity of the output shaft
in the organic chem we prepared soap by using tallow and sodium hydroxide. after keep checking the regular 6 weeks of
Problem- If a buffer solution is 0.110 M in a weak acid (Ka = 2.6 *10^-5) and 0.480 M in its conjugate base, what is the pH
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