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When 1,350 joules of heat is added the temperature raises by 3.5 degrees C. A Styrofoam cup calorimeter is calibrated by adding heat to the water in it with an electrical heater.
When water is boiled on the plane to make coffee, what is the temperature of the boiling water? The cabin of a commercial airliner is maintained at a pressure of 0.74 bar.
A sample which is having 4.00 g of a protein was dissolved in the water and the volume of the aqueous solution adjusted to the 100.00 mL. The osmotic pressure of this solution was 10.68 tor
2 NaNO3(s) -> 2 NaNO2(s) +O2(g). Heating a .1865-g sample of impureNaNO3 formed 24.6 mL of O2 gas, collected by the water displacement, at the 26.00C and a barometric
What are the rates of production of P4 and H2 in this experiment if, in a certain experiment, over a specific time period,0.0033 mol PH3 is consumed in the a1.7-L container each second
pH of 100mL of 0.250 M solution of acetic acid which is having 0.250 M of sodium acetate; pKa = 4.75, upon addition of the 5.0mL of0.10 M HCl
How can obtain the pH and concentrations of H+(hydrogen ion),K+, OH-,H2PO4-,HPO43-,PO43 from a 1.00L solution having the 0.0250 mol KH2PO4 and 0.030 mol KOH.
How can find the molarity of benzoic acid solution if the 14.3 ml of 0.00105m NaOH is needed to reach titration end point for the 25.0 ml of benzoic acid solution?
Determine work done by the force of 39 pounds acting in direction<2,5> in moving the object 5 feet from <0,0> to the point in first quadrant along line y = x.
A sample of green crystals of Nickel (II) Sulfate heptahydrate was heated carefully to produce bluish green nickel (II) sulfate hex hydrate.
Determine the purpose of such an addition, and discuss the procedure called? When extracting an organic compound from an aqueous solution into an organic solvent e.g., diethyl ether, a chemist will
Write down a balanced chemical equation which if you calculated its enthalpy would give you the sum of all the C-H, C-C, C-O, and C-H(i.e. all the bonds) of C6H12O6.
Write down the balanced chemical equation, which if you calculated its enthalpy would give you the enthalpy of combustion of glucose. C6H12O6
The box with the square base has volume of 867 in3. State surface area of box as the function of length x of side of the base. Use function to compute dimensions of box with volume 867 in3 and smalles
Determine free pCa in 100 mL of the solution of 0.100 MCa2+ at pH = 10 after adding the 100 mL of 0.100 M EDTA ; Conditional formation constant Kf' = 1.75 X1010 ; pCa = -log [Ca2+].
During coulometric titration of an organic compound, XH2 , with an iodide solution, the time to reach the endpoint was 30.0s at 5.0 mA. ( The XH2 molecular weight was 85.00 g/mol). F = 96490
Determine the coast of heating 200 mL of water (enough to make a cup of coffee or tea) from 20 degree C to 100 degree C. A gas company in Massachusetts charges $1.30 for 15 cubic feet of natural gas
Every 12 hours, 500mL of a solution that is 5.0%(m/v) amino acids (protein) and 20% (m/v) glucose (carbohydrate) is given along with 500mL of a 10% (m/v) lipid (fat) when a patient receives all her
Consider f be the function with domain D and range R. We assume that there exists the functiong defned on R such that for any x ε D, (g of)(x) = x. Is f necessarily one-to-one? If no, provide
You are given the job of driving small u-haul from college to home town and then back again to college. Determine profit when you get to the home town?
Illustrate that Cartesian equation of plane π is 3x+2y-6z=12. Plane π meets x,y and z axes at A, B and C respectively. Determine coordinates of A, B and C.
The rectangular flower bed is to be enclosed on 3 sides by the small decorative fence. Fourth side is the side of house. Write dimensions of largest flower bed which can be enclosed by 24 ft of fen
Two cars start to drive in same direction at same time, one traveling at 60 miles per hour and one at 48 miles per hour. After two hours, how far apart are cars?
Illustrate that two planes π1: x+2y-z=1 and π2: x+z=-2 are perpendicular. Determine equation of plane π3 which passes through origin and is perpendicular to both π1 and π2.
The reflecting telescope has the mirror shaped like paraboloid of revolution. If mirror is 4 inches across at opening and is 3 inches deep, find where will collected light be concentrated?