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A sample which is having 5.00 mL of seawater that had a density of 1.0116 g/mL was titrated with0.0998 M AgNO3 solution using K2CrO4 to indicate the end point. If 26.35 mL of 0.0998 M
A beam of un-polarized light of intensity 28.0 W/m2 passes via a polarizing sheet. Determine the electric field amplitude of the transmitted beam?
The polynomial f(x) with real coefficients and leading coefficient 1 has zero 8+5i and degree 2. State f(x) as the quadratic polynomial with real coefficients which are irreducible over (real number
If the temperature is reduced to -80C and the pressure increased to 760mmHg, discuss what volume will 300 ml of gas at the 20 C and a pressure of 355 mmHg occupy?
(i) Determine the radiation pressure which a 250 W light bulb emitting light with the efficiency of 15% applies on a small matte-black surface at a distance of 0.900 m? (ii) Determine the pressure i
The Sun attracts the Earth by pulling on it with the gravity. Determine the force applied by the gravity of Sun on the planet Earth?
A12.3849 -g sample of iodine is accidentally contaminated with1.00070 g of ^129 I, naturally occurring iodine has an atomic mass of 126.9045, a synthetic radioisotope of iodine used in the treatment
The number of bacteria in the certain population increases according to exponential growth model, with the growth rate of 3.5 % per hour. How many hours it takes for size of sample to double?
(i) Determine the electric field energy density at P? (ii) A parallel-plate capacitor whose plates consist of area 0.108 m2 has a uniform electric field among its plates with the similar energy dens
If the H-H and H-F bond energies are 432 and 565 kJ/mol, respectively, calculate the F-F bond energy? The reaction of H2 with F2 produces HF with ΔH = -269 kJ/mol of HF.
A layer of ice having parallel sides floats on the water. When light is incident on the upper surface of the ice at an angle of incidence of 36.0°, determine the angle of refraction in the water
The discovery of polyatomic organic molecules such as Cyanamid, H2NCN, in interstellar space has led some scientists to believe that the molecules from which life began on Earth may have come from s
Compute the pressure in the eye of the hurricane when the pressure close to the edge is around one atmosphere.
A 0.1743g sample of impure oxalic acid is required and 39.8 mL of 0.08915 M NaOH solution for complete neutralization. Oxalic acid (COOH)2 is used to remove the rust stains and some ink stains f
Find out the maximum depth to which can submerge the submarine. (Suppose that the layer of ice is thin adequate not to apply any pressure on the surface of Europe’s ocean.)
Determine the pH of 0.25 M K2CO3.Determine the concentrations of HCO3-, and H2CO3 in the solution?H2CO3 is a diprotic acid with the Ka2 = 4.7 x 10-11 and Ka1 = 4.3
Diameter of big gear with pedal on it is 10 inches and radius of wheel is 17 inches and radius of gear in wheel is 3 inches, how many revolutions of pedal cyclist needs to make to travel 800 inches?
Calculate the new temperature after the sample is transferred to a new container with a pressure of 1.20atm and a volume of 2.50L? A sample of gas has a volume of 4250mL at 15Celsus and 745 mm Hg.
The space probe is in the orbit of Moon at a distance from its surface of 100km. A mechanic error causes the probe to lose 25 percent of its velocity entering the probe in a decadent orbit. Compute
Illustrate Lewis structures for these two species. Include all resonance forms (include double headed arrow). Nitrogen-fixing bacteria convert urea [H2NC(O)NH2] into the nitrite ions(NO2-).
Determine the numbers of total moles of atoms are present in the 25 g of NaOH? Was given the answer of 1.875 mole of atoms but don't know the formula in order to figure it out.
A taut rope consists of a mass of around 0.160 kg and a length of 3.80 m. Determine what power should be supplied to the rope so as to generate sinusoidal waves having amplitude of 0.100 m and a wav
How much salicylic acid and aceticanhyride would you need to make one million 100-tablet bottles of 325mg aspirin based on a 60% yield?
If nowadays Mars is 31.0 degrees ahead of earth in its orbit around the sun, when will the two planets first are aligned all along a straight line from the sun, supposing circular orbits? (Note: All
What will be the theoretical mass of potassium sulphate suppose you have 35ml of a 200 mg/l solution of H2SO4 and neutralized it with plenty of dilute KOH (potassium hydroxide).