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Write down the two balanced equations leading to the formation of boron oxide when the reaction of boron trifluoride with sodium borohydride leads to the formation of sodium tetrafluoroborate and B2
Determine the magnitude of the electric field at the point (6.50 - 8.30 + 7.00) m if the electric potential is provided by V = 9.70xyz^2, where V is in volts and x, y, and z are in meters?
Determine the numbers of mL of 0.127M H2SO4 are required to neutralize 0.180 g of NaOH? If 56.6 mL of BaCl2 solution is required to precipitate all the sulphate ion in a 750 mg sample ofNa2S
Take the potential of the negative plate to be zero. When the potential halfway among the plates is then +5.6 V, determine the electric field (in V/m) in the area between the plates?
The AC generator in the AC capacitor circuit makes a maximum potential difference across the capacitor of 175 V and an utmost current of 22.8 A. The frequency of the generator is around 977 Hz. When
If 43.0 mL of 0.220 M HCl solution is required to neutralize a solution of Ca(OH)2 determine the numbers of grams of Ca(OH)2must be in the solution?
At a specific time t, the current through the resistor consists of its maximum value of 12.3 A, and then starts to fall. Just 0.00573 s later, the current via the resistance has fallen to 10.7 A. De
By submerging the system in a certain liquid we find out that the number of interference minima has raised to 45. Determine the index of refraction of the liquid?
When a sample which is having 1.150 g of iron ore is treated with 50mL of HCl the iron dissolves in the acid to form a solution of FeCl3. The FeCl3 solution is diluted to 100mL and the concentration
What is the pH of a solution containing hydrochloric acid which is having 25 mg/L? What happened if the acid was hypochlorous acid (HOCl) instead?
To tighten a spark plug, it is suggested that a torque of 15.2 N•m be exerted. When a mechanic tightens the spark plug having a wrench which is 24.8 cm long, determine the minimum force essenti
Suppose the cost of the car is $15,000. With continuous compounding, determine number of years it would take to double cost of car at the annual inflation rate of 5%.
What would the OCL concentration in mg/L be at 25°C if a water containing 0.5000mg/L of HOCl has the pH adjusted to 7.0?
A Gaussian sphere having radius 3.90 cm is centered on the ball which consists of a radius of 1.20 cm and a uniform charge distribution. The net electric flux via the surface of the Gaussian sphere
What would be the approximate increase in the temperature of water when a slice of pizza has 500 kcal, and if we could burn the pizza and use all the heat to warm a 50-L container of cold w
Total yearly interest on three bonds is $1,880. If total amount invested is $19,000, find amount invested at each rate?
How does the corresponding wave number of the electromagnetic wave change? Suppose you substitute hydrogen with deuterium: thesffective mass for the vibration changes from 1 amu to 2 amu.
A converging lens consists of a focal length of 10.0 cm. Locate the object when the real image is positioned at a distance from the lens of (i) 20.0 cm and (i) 50.0 cm. What if? Redo the computation
A rock is fully submerged in water. The rock experiences a buoyant force of around 111 N. Determine the weight of the water moved by the rock?
The grocer mixes peanuts which cost $2.69 per pound and walnuts which cost $4.29 per pound to make 100 pounds of the mixture which costs $3.49 per pound. How many pounds of every type of nut is put
If you use density heat test, test, copper wire test, ignition test and the acetone test to find out the PVS and PS how you could tell the polmer apart in three ways?
The life-time of the energy-efficient bulb is 10 000 h and its purchase price is $4.90, while the conventional bulb consists of lifetime 750 h and costs $0.46 per bulb. Find out the total savings ob
Calculate the molar concentration of Cu2+? The concentration of Copper (II) Sulphate in one brand of soluble plant fertilizer is .07% by weight. If a 24.5 g sample of this is dissolved in 2
If an automobile moves with the constant speed down a highway, most of the power developed by the engine is employed to compensate for the mechanical energy loss due to frictional forces applied on
Calculate the original concentration of Ag+? An excess KCl is added to 10.00 mL of a solution containing an unknown concentration of Ag+ ions, which results in the formation of 1.7316 g AgCl precip