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Determine the heat formed by the solution of 4.75g of NaOH. Determine the number of calories that would be produced if one mole of sodium hydroxide was dissolved.
A car of 1200 kg is moving at 5.0 m/s East. It hits a car of 1800 kg at rest. The cars encompass an elastic collision and move in the East or West direction. The velocity of the car of 1800 kg after
Discuss how much energy is needed to warm the15.0g of ethyl alcohol from 4C to 25C? (Sp heat ethyl alcohol is 0.590 cal/g-C)
Determine how long does it take the wave to travel a distance of 8.10 m all along the length of the string?
Write down the balanced net ionic equation for the reaction that occurs when the solid potassium hydrogen carbonate reacts with the hydrochloric acid.
Population of world in 1987 was 5 billion and relative growth rate was evaluated at 2% per year. Suppose that world population follows the exponential growth model, determine projected world populat
A student is required to generate 90.0 mL of carbon dioxide at the 750mm Hg and 21*C using the potassium hydrogen carbonate and HCl.
A wire carries a current of 10 A in a direction which makes an angle of 30 deg. With the direction of a magnetic field of strength 0.3 T. Determine the magnetic force on a 5m length of wire.
The mixture was stirred until all of theNaHCO3 dissolved. 3.5 g of solid NaHCO3 was added to 50.0 g of water in a calorimeter. The temperature of the water changed from 20.1*C to 16.7*
A mass of 3.00 kg is positioned at x = 2.0 cm and y = -4.0 cm. A mass of 3.00 kg is positioned at x = -5.0 cm and y = 2.0 cm. A mass of 4.00 kg is positioned at x = -3.0 cm and y = -3.0 cm. Where is
How can compute the three 1L flasks, all at standard pressure and temperature? If flask A contains NH3 gas, flask B is having NO2 gas, and flask C which is having N2 gas.
There are two wires with equivalent however opposing currents. The bottom wire is fixed. The top wire is parallel to the bottom one and consists of a mass density of around 1.5 x 10^-3 kg/m. What sh
Website costs $ 160 a month to maintain. Every katana costs $ 290 to make, and they sell every katana for $ 680. Create the linear model in form y = m x + b where x is number of swords sold per month
Determine what volume of water should be added to 50 mL of HNO3having the specific gravity of 1.5 g/mL and 63% by weight to make a 1M solution?
The magnetic flux via a circuit is decreased from 45Tm2 to 15Tm2 in 0.2s. The current induced in the circuit is around 3.6 mA. Find out the resistance of the circuit?
Calculate 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) if a piece of silver with mass of 20.0 g is immersed in the 25.0 g of
At 80.00 degrees Celsius (°C) a 45.71 gram piece of iron metal is added to 57.26 grams of water in a perfectly insulated container. Find out the final temperature of the water and iron m
Given that the focal length of the eyepiece is around 2.5, and the focal length of the objective is 0.47, determine the magnitude of the angle subtended by the red blood cell if observed through the
What is the atomic weight of metal M which is having a sample of metal oxide (0.4150g) with the formula M3O3 is quantitatively converted to a metal sulfide, MS, yielding 0.4570g.
A mixture of H3PO4 and HCl is titrated with the 0.1000 M NaOH. The first end point used methyl red as an indicator and the end point occurred at the 35.00 mL.
The gas station sells 1400 gallons of gasoline per hour if it charges $ 2.30 per gallon but only 800 gallons per hour if it charges $ 2.80 per gallon. Suppose the linear model. How many gallons woul
Determine the pressure which is exerted by the 4.37 moles of molecular chlorine confined in a volume of2.45 L at 38 degrees C. Contrast the pressure with that measured using the ideal gas equation.
A 0.7026 g sample of an unknown acid needs 40.96 mL of0.1158 M NaOH for neutralization to a phenolphthalein end point. There is 1.22 mL of 0.1036 M HCl used for back titration.
If the pressure of the air parcel is 975mb, what would be the final volume of this air parcel? Consider an air parcel of 1 m^3 that undergoes expansion cooling where the temp drops by 5 deg
When 1.50 g of butanol (C4H9OH) is burned in the same calorimeter, the temperature increases by 13.00 oC. An electrical heater is used to add 19.25 kJ of heat to a constant-volume calorimeter.