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A 35 g bullet is fired in a ballistic pendulum device (see page 178 In text), what was the initial velocity of the bullet
6Li(s) + N2(g)------ 2Li3N(s) a, What is theortically yield of Li3N in gram when 12.1gm of Li is heated with 33 gm of N2? b, If actual yield of Li3N is 6.09g what is the percent yield of reaction
A rail car of mass 4500 kg is moving with a velocity of 12.4 m/s collides with a stationary rail car of mass 6700 kg. What is the velocity of the two cars
Consider the decomposition of ammonium nitrite: NH4NO2 yields to N2 + H2O. What would be the change in pressure in a sealed 10.0 L vessel due to the formation of N2 gas when the ammonium nitrite in
A cigarette lighter in a car is a resistor that, when activated, is connected across the 12-V battery. Suppose a lighter dissipates 32 W of power. find the resistance of the lighter
The average power used by a stereo speaker is 54 W. find the peak value of the ac voltage applied to the speaker
an airplane travels 85 km,62degrees north of east. Its displacement is represented by the vector A in the drawing
Write balanced equations for the reactions pf phenylmagnesium bromide and trityl fluoborate with water
The voltage drop along a 30.0m segment of a power line made from copper wire (a very good conductor) is 1.2V, while carrying a current of 25.0 A. How large is the electric field along the wire
Before investigating the scene, the technician must dilute the luminol solution to a concentration of 6.00×10^?2 M . The diluted solution is then placed in a spray bottle for application on th
NO(g) + O2(g)-------- 2NO2 0.85 mol of NO is mixed 0.494 mol of O2 Calculate the number of moles of NO2 produced and Limiting reactant
The forensic technician at a crime scene has just prepared a luminol stock solution by adding 17.0g of luminol into a total volume of 75.0 mL of H2O. What is the molarity of the stock solution of lu
When an uncharged parallel-plate capacitor is connected to a 50.0V battery, it is noticed that 22.0 microColumbs of charge flowed out from the + terminal of the battery, What is the value of the cap
An electron is accelerated from rest through a potential difference of 2.50 kV. What would be its de Broglie Wavelength
Element phosphorus occurs as tetratomic molcules P4. what mass of chlorine gas needed to react completely 963 gm of phospheras to form phospheras pentachloride
1.35 mol of N2 at 19 deg C, 6.35 bar undergoes a transformation to the state described by 210 deg C and 1.90 bar. Calculate deltaS if Cp,m*K*mol/J = 30.81 - 11.87*10^-3T/K + 2.3968*10^-5T^2/K^2 - 1
What concentration should you make your stock solution of vincristine in order to make this 5uL addition?
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
Sodium carbonate (Na2CO3rm Na_2CO_3) is used to neutralize the sulfuric acid spill. How many kilograms of sodium carbonate must be added to neutralize 3.02×103kgkg of sulfuric acid solutio
An initially neutral conductor contains a hollow cavity in which there is a -100 nC point charge. what is the charge on the inner wall of the cavity wall
Inside a motor, 30.5 A passes through a 250 turn circular loop that is 10.0 cm in radius. what is the magnetic field strength created
For equal moles of CaCl2 and Fe(NO3)3 dissolved in the same volume of distilled water, how do you expect the conductivities of each solution to compare? Explain your reasoning.
Ascorbic Acid (Vitamin C) contains C, H, and O. In one combustion analysis, 5.24 g ... analysis, 5.24 g of ascorbic acid yields 7.86 g CO2 and 2.14 g H2O. Calculate the empirical formula and molecul
A cosmic ray electron moves at 7.85 multiplied by 106 m/s perpendicular to the earth's magnetic field at an altitude where field strength is 1.10 multiplied by 10-5 T