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Determine the number of molecules in a deep breath of air whose volume is 2.59 L at the body temperature, 37°C, and which is having the pressure of 743torr.
Determine the change in molar entropy of aluminum that is heated from the 600 to 700°C. The heat of fusion is 393J/g, the melting point of Al is 660°C and the heat capacities of the
What mass in grams of steam at 100°C should be mixed with 298 g of ice at its melting point, in a thermally insulated container, to generate liquid water at 15.0°C? The specific heat of wate
What is the volume of nitrogen at STP when the Pantothenic acid is a B vitamin. Using the Dumas method, you find that a sample weighing 55.4 mg gives 3.84 mL of nitroen gas at27*C and 745 mmHg.
Find largest and smallest degrees of vertices of G. Does G contain the independent set of size three or more? Find chromatic number of G, and describe.
Methanol, CH3OH, can be formed in industrial plants by reacting the carbon dioxide with hydrogen in the presence of a catalyst. Water is the other product.
Find out the ratio of the two capacitances? (Prior to the battery is joined in each case, the capacitors are completely discharged.)
How can estimate the density of hydrogen sulfide gas, H2S, at the 56*C and 967 mmHg. Obtain the density in grams per liter.
Find out the efficiency of a motor which generates 92N-m of helpful work however needs 388N-m of work to make it operate.
The aluminum sample is quickly transferred to 50.0 mL of water at23.8oC contained in a calorimeter. An 18.50-g sample of aluminum is heated t 0 99.9o C in a hot water bath until thermal equilibri
Write down the structure for this Diels-Alder addition product when Cyclopentadienone is unstable and rapidly undergoes the Diels-Alder reaction with itself.
Blood flows via a part of a horizontal artery which is partly blocked by a deposit all along the artery wall. As a hemoglobin molecule moves from the narrow area into the wider region, its speed cha
Draw the steps involved in the basifying and extracting caffeine from the 20 mL of tea using 2 x6.0 mL dichloromethane extractions.
Is it possible that any two candidates receive same number of points? Describe. Which of three fairness criteria are true for the system? Describe.
A wire carrying a current 10A in a direction which makes an angle of 30 degrees with the direction of a magnetic field of strength 0.8T. Determine the magnetic force on a 5m length of the wire?
What is the molecular weight of the substance? Suppose you vaporize a liquid substance at the 100*C and 755 mmHg where the volume of 0.627 g of vapor is 261 mL.
Estimate the volume of hydrogen produced at the 28*C and 693 mmHg from the 0.0921 mol Mg and excess HCl.
The U.S. Navy developed an undersea habitat in a series of experiments. The mole percent composition of the atmosphere in the undersea habitat was 79.0% He, 17.0%N2, and 4.0% O2 in one experiment.
A possible means for forming an airplane invisible to radar is to coat the plane with the antireflective polymer. When radar waves encompass a wavelength of around 3.00 cm and the index of refractio
What is the atomic weight of metal M if a sample of metal oxide (0.4150g) with the formula M2O3 is quantitatively converted to metal sulfide, MS, yielding 0.4570g?
Find out the magnitude of the water velocity at this point when the volume flow rate is 0.750 m^3/s? (ii) At second point in the pipe the water velocity consists of a magnitude of 11.0 m/s. Find out
If the activation energy for vacancy formation is 20,000 cal/mol than calculate the number of vacancies per cm3 expected in copper at1080 C. Explain in details.
An inductor of 10 mH, 10 ohm resistor, switch and battery of 6-V are all in series. Determine how long after the switch is closed will 95% of the final current be reached and find out the potential
Determine the energy absorbed by your eye throughout that time, supposing that all the photons are absorbed? The net power output of the Sun is around 4.2 x 102 W.
A solution (A) which is having an analytic (sucrose) was provided in a 250.0 mL volumetric flask. A 10.00 mL aliquot of this solution was diluted to the 25.00 mL in a volumetric flask.