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Question - If a 17.0 g sample of impure nickel metal reacts under standard conditions with 25.0 L of CO to form 6.25 L of Ni(CO)4 gas, what is the percentage of Ni in the metal sample?
Please demonstrate the entire work. I am thanking you in advance
Question- If 2.0 grams of gold are to be plated out of 1.0 L of 0.5 M solution of Au3+, assuming no volume change, what is the remaining [Au3+]
A 1.44 g piece of metal was taken from a beaker of boiling water at 100 oC and placed directly into a calorimeter at 25.0 o C. The calorimeter heat capacity is 1.23 J/K. If the final temperature is 62.5 oC, determine the specific heat capacity of ..
A vapor composed of 0.20 mole fraction ethanol and 0.80 mole fraction acetic acid at 120.0 mmHg (absolute), is in equilibrium with a liquid phase also composed of ethanol and acetic acid. Assume that the liquid is an ideal solution and apply Raoul..
As mentioned in the text, Ni3Al is used in the turbines of aircraft engines because of its strength and low density. Nickel metal has a cubic close-packed structure with a face-centered cubic unit cell
At what radius does the probability of finding an electron at a point in the H atom fall to 50 per cent of its maximum value
Find out the end (final) value of n in a hydrogen atom transition, suppose the electron starts in n=2 and absorbs a photon of light with a frequency of 4.57 x 10^14 Hz
Calculate the amount of energy released in the formation of one mole of BaSe bonds (not lattice energy).
What quantity of energy as heat is required to vaporize a 60 mL of mercury at 357 C, its normal boiling point? The density of mercury is 13.6 g/mL and Atomic Mass is 200.59 g/mol.
Calculate ?Grxn at 298 K under the conditions shown below for the following reaction. 3O2(g)--> 2O2(g) ?G°=326 kJ P(O2) = 0.41 atm, P(O3) = 5.2 atm
Problem- A 50.0 mL aliquot of 0.100 M diprotic acid H2A (pKa1 = 4.32, pKa2 = 8.64) was titrated with 0.50 M NaOH. Find the pH at the following volumes of base added. Vb = 5, 10, 15, 20 mL
The vapor pressure of ethanol is 100. mmHg at 34.9°C. What is its vapor pressure at 53.5°C. (?Hvap for ethanol is 39.3 kJ/mol.) _____ mmHg
An electron in an excited state of a hydrogen atom emits two photons in succession, the first at 1817 nm and the second at 97.20 nm, to return to the ground state (n=1).
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