Calculate the atomic mass of n relative to h
"The gas is a compound of hydrogen and nitrogen in the atomic ratio 1: 3. A sample of ammonia which is having 1.712 g H and 7.933 g N. calculate the atomic mass of N relative to H?"
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.Determine the absorbance of the solution if its concentration is 0.0278 M and its molar extinction coefficient is35.9 L/(mol cm). The depth of the cell is 5 mm.
How can develop the Henderson-Hasselbalch equation for buffers starting from a buffer solution that contains a weak acid (HA) and its conjugate base (A-)?
Determine the numbers of milli moles of a solute are present in 500.0mL of.3500 M. Also, if 25.00 mL of that solution is pipette into a 200 mL volumetric flask and distilled water added to the mark, determine the concentration of the solute in the
HCl and NaOH are each 1.0M and used 50mL of each. Explain how would it affect the enthalpy per mol of water formed if 1.0M HNO3 were used instead of the HCl?
How long does it take for the water to reach the boiling point? The specific heat of copper is 0.385 J/(g*°C). A 300.0 g copper pan containing 800.0 mL of water is put on the stove.
Determine the number of grams of NH4Br that have to be dissolved in 1.00L of water at the 25degrees C to have a solution with a pH of 5.16
Calculate the probability of locating the electron (a) between 0.500 nm and 0.502 nm and (b) between 0.999 nm and 1.001 nm. Do not use integration.
Based upon the report from the Department of Game and Fish, a researcher wished to determine how much trout weigh in Trout Creek. A random sample of 5 trout where captured, weighed, tagged and released; the weights recorded in pounds were 2 lb, 4
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