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After 10 minutes, temperature of stein has risen to 35oF. Find temperature of stein be after 30minutes? How long will it take stein to reach temperature of 45oF?
Rabbit population doubles every 3 months and originally starts with 50 rabbits. How many rabbits will there be after r years and when will 1000000 rabbits be present?
A sample which is having 0.692-g of glucose, C6H12O6, is burned in a constant volume calorimeter. The temperature rises from the 21.70 °C to 25.22 °C.
Assume monic (leading coefficient 1) cubic polynomial function f(x)=x^3+bx^2+cx+d has zeros r1, r2, r3. Write polynomial factored form and multiply factors. Write relationships between coefficients
How much of the ice melted and how much remained the floating in the beverage? Suppose the specific heat capacity of tea is the same as that of pure water. Three 45-g ice cubes at 0 °C are dropp
Rectangle ABCD had vertices C and D on x-axis and vertices A and B on line y=9-x^2 above x-axis. State perimeter of rectangle as the function of x-coordinate of A.
When the intermediate compound formed what product is ultimately produced, when pyrrolidine and cyclohexanone is mixed with the ally chloride is heated and then hydrolyzed?
Determine all horizontal and vertical asymptotes and draw function (include asymptotes on graph). Solve inequality x +1/ 2-x greater than 2 algebraically.
Estimate the freezing point of the liquid at100MPa when a certain liquid freezes at the -3.65 degree C its density changes from 0.789 g cm^-3 to 0.801 g cm ^-3. Its enthalpy of fusion is 8.68 kJ/mo
Explain why we required stirring the mixture vigorously during the reaction, in LAB the Phase-Transfer Catalysis: Addition of Dichlorocarbene to Cyclohexene.
Tests illustrate that the new ointment X helps heal wounds. If area of original wound was 10 square millimeters, determine area of wound after 10 days of application of new ointment.
Iron in the +2 oxidation state reacts with the potassium dichromate to form the Fe3+ and Cr3+ according to the equation 6Fe2++Cr2O72- + 14H+ →6Fe3+ + 2Cr3+ + 7H2O.
The population of United States was about 250 million in 1990 and 275 million in 2000. Suppose that population will continue to grow exponentially at same rate. Find predicted population of United S
Estimate the reaction of (R)-1-chloro-1-iodoethane with NaOH in anaptotic polar solvent at low temperature. The reaction seems to me to be perfectly set up for a Sn2 reaction. One of the substituti
Explain how would you separate a mixture of an amine (RNH2), a carboxylic acid (RCOOH), a hydrocarbon (RH) and a phenol (ArOH) using chemically active extraction?
State cross-sectional area A(w) of building as the function of width wand express domain of function. Use Euclid's theorem to find relationship between length land width w.
The transporter beam is a device used to "beam down" people from the Starship Enterprise to another location in the television series Star Trek, such as the surface of a planet.
Given x=t^2 and y=t-2. Determine point when t=-3. Determine the direct algebraic relationship between x and y.
What is the exact mass of the molecular ion of penicillin V if the Penicillin V has a molecular formula of C16H18N2O5S? Determine the molecular weight of Penicillin V? And clear explain why th
Half-life of radioactive uranium (234-U) is 245,500 years. What percent of current amount of radioactive uranium will remain after 5000 years?
Determine the numbers of moles of ions in total are released when the 0.54 mol of cobalt (II) chloride, CoCl2, is dissolved in the water?
Determine the numbers of milliliters of 1.58 M HCl are required to react completely with the 23.2 g of NaHCO3 (MW= 84.02 g/mol) ? Check to see if the reaction is balanced first
Dayton Power and Light Inc. has the power plant on Miami River where river is 800 feet wide. Create the table with values of x ranging from 0 to 2 miles but measured in feet at 500 foot intervals and