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It takes the freight train 2 hours longer to travel 200 miles than it takes the express train to travel 280 miles. Rate of express train is 20 miles per hour greater than rate of freight train. Dete
Determine the mathematical equation which represents the solubility product when the insoluble compound Fe2S3 is dissolved in the water?
Analyze the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0°C and738 mmHg, respectively. On a smoggy day in a certain city
1 hour later a second bus leaves same station, traveling east at the rate of 48 mile per hour. At what time will two buses be 274 miles apart?
If the phosphorus is present as phosphate, PO43-, determine the corresponding molar concentration of phosphate. Phosphorus is present in the seawater to the extent of 0.07 ppm by mass.
Consider the reaction N2 (g)+ O2(g)ó 2NO(g) when given ΔG0 for the reaction at the 250C is 173.4 kJ/mol Determine the standard free energy of formation of NO.
Determine what average force is essential to bring a 49.5 kg sled from rest to a speed of 3.2 m/s in a period of 19.6 s? Suppose frictionless ice.
The Monorail car traves 100 miles in 50 minutes less time than it takes and automobile to travel same distance. Determine speeds of two vehicles if monorail goes 20 mph faster than automobiles.
How can estimate the functional groups for Enol and how they look like and also determine the functional groups for Enolote ion and how they look like?
Determine the shortest x-ray wavelength from the continuous spectrum due to electrons accelerated via 35.7 kV, supposing that the electron gives up all of its KE throughout a collision(s).
Figure out the sequence of steps and formulate the synthesis of cyclopentanone. The Dieckmann condensation is used in the synthesis of cyclo-pentanone from cyclohexanone.
For an electron traveling in the straight section of a particle accelerator having a velocity of 0.930c relative to the accelerator, the segment consists of a length of 184 m. Determine the length o
A rock contains 0.95 mg of U-238 and 0.37 mg of Pb-206.Approximately determines the numbers of U-238 atoms were in the rock when it was produced billions of years ago? Where the half life f
Explain what fraction of the original C-14 would remain today when the half-life of 14C is 5,730 years. Assuming some charcoal from a campfire 29,000 years old was found.
The elevator in Washington Monument takes 75 seconds to travel 500 feet to top floor. Find speed of elevator in miles per hour?
Sketch a picture representing her displacement due to rowing, her displacement due to the river’s motion, and her total displacement.
What fraction of a tritium sample will remain after 5.20 years when the heaviest known isotope of hydrogen is called the tritium, 31H. It decays by beta emission, and has a half-life of 12.3
An 8 cm diameter, 400 g sphere is released from rest to the tip of a 2.1 m long, 25 degree incline. It rolls, devoid of slipping, to the bottom. i) Determine the angular velocity of the sphere at th
Estimate the major organic product of reaction between the cyclohexanone and the cyclohexanol in the presence of acid (H+)?
Determine time it would take you to ride bicycle home. Determine the time your father will arrive home. Write the equation to find the distance d1, from Pittsburgh after t hours.
Calculate how much energy is released when the polonium-210according to 210^Po------->4^H+206^Pb. {Atomic masses: polonium-210 = 209.982857 amu ; helium-4= 4.002603 amu ; lead-206=205.974449 amu
Determine the numbers of 30mg KMNO4 (Potassium Permanganate) tablets are required to make the following solution? KMNO4 1:50000 600ml.
When 4-methylhexanal is heated in base and undergoes and also addition followed by a dehydration provide the structure of the major organic product that results.
A 10 cm lengthy animal tendon was found to stretch 3.5 mm by a force of 13.1 N. The tendon was about round with an average diameter of 8.0 mm. Compute the elastic modulus of the tendon.
How many moles of KHP are present if you prepare a primary standard by dissolving the 499 mg of dried KHP in 35 ml of distilled water.