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The lawyer has found 60 investors for LLC to buy the inner-city complex with each contributing either $5,000 or $10,000. If LLC increased $420,000, how many investors contributed $5,000 and how many
Determine the numbers of grams of water must be added to 200 mL of NaOH solution in order to have a solution which is having the specific gravity of 1.157, 13.55%? Where the specific gravity of NaO
2 Naphthnol and Benzoic acid each melt at the 122 degrees Celsius. A sample of unknown solid melts around 122 degrees Celsius. Describe a method to calculate the identity of the unknown compound wh
How many joules of energy are absorbed by the silver? (Cp Ag = 25.3 J/mol-K, 1 mole of silver (Ag) has a mass of 107g) when a piece of silver with mass of 5.0 g is immersed in the 40.0 g of water.
Find vertex of graph of the quadratic function: f(x) = x2 + 4. Vertex is the optimum point. It is highest or lowest point of given function.
Determine the final temperature in Kelvin when an electrical heater is used to supply 235.0 J of energy to a 25.0 g sample of water (specific heat is 4.18 J g-1 deg-1), originally at the 290.0
Determine the heat released when the 2.00L of Cl2(g) with a density of 1.88 g/L react with an excess of sodium metal at the 25degree Celsius and 1 atm to form sodium chloride.
The height in feet of the projectile with the initial velocity of 96 feet per second and the initial height of 75 feet is the function of time t in seconds provided by: h(t) = -16t2 + 96t + 75. Dete
Suppose you have 3.240 L of a 0.1737 M H3BO3 (boric acid, Ka=5.8000x10-10) solution. To convert this into a buffer having a pH of 9.1484, determine the numbers of grams of KH2BO3 (M.W. 99.92
Determine the empirical formula ratio of a compound which is having the copper and sulfur given the following analytical results?
After five minutes, absorbance at 403 nm has changed by 0.550. Molar absorbtivity (e) of product is 18.8x10^3 L/mol cm. Determine activity of the enzyme in U/L?
The number of molecules in a rotational level J is given by NJ = C(2J+1)exp(-Θ rot J(J+1)/T ), where C is a constant, Identify the value of J of the most highly populated level
If, initially, [NH3 (g)] =[O2(g)] = 3.60 M, at equilibrium,[N2O4(g)] = 0.60 M. Calculate the equilibrium concentrations of all other species.
Describe the total mass of chloroform in the flask? What fraction is in the vapor phase at equilibrium if a quantity of liquid chloroform is placed in an open, transparent, three liter flask and boi
When 3.00 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 20.81 oC determine the molar heat of combustion for butanol. An electrical heater is used to add
Suppose you are titrating the 3.566 mLs of 0.4113 M LiOH with 0.02765 MHClO4. Determine the pH at the equivalence point in this titration? Discuss in detail.
Describe the compression factor for this gas at the prevailing temperature and pressure when a certain gas obeys the van der Waals equation with a =0.50m6 Pa mol-2.
The football is kicked from ground with the resultant velocity of 30m/sec at the angle of 40 degrees from horizontal. Find time when the ball is in air, how high it goes?
Charge a and charge b are 3m apart and charge A is +2 C and charge B is +3 C. Charge C is positioned at a point among them and the total force on charge C is zero. Determine how far from charge A i
Determine the standard enthalpy of formation of liquid methanol,CH3OH(l), using the following information: C(graph) + O2 → CO2(g) ΔH° = -393.5 kJ/mo
A double concave lens encompass radii of curvature of magnitude 32.0 cm and 24.0 cm is made up of a glass for which the refractive index for red light of wavelength 700 nm is 1.44 and for violet lig
What is the heat capacity of the bomb calorimeter, excluding the water? The heat of combustion of benzoic acid is -26.42 kJ/g. when 0.7521 g of benzoic acid was burned in a calorimeter cont
Determine the shortest height a plane mirror should be so that a person who is 1.6 meters tall is capable to see his or her whole body. Sketch a ray diagram to support your answer.
With the automobile on level ground, find out the magnitude of the force from the ground on (i) each and every front wheel (supposing equivalent forces on the front wheels) and (ii) each rear wheel
A sample of NH3 at 25 degrees Celsius effuses at a rate of 0.050 mole per minute. Under the same conditions, which of the following gases effuses at approximately one-half the rate?