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German physicist Werner Heisenberg related the uncertainty of an object\'s position (?x) to the uncertainty in its velocity ?v.The mass of an electron is 9.11× 10-31 kg. What is the uncertainty in the position of an electron moving at 1.00 × 106 m/s with an uncertainty of ?v = 0.01 × 106 m/s?
you found the amount of product (1.40 mol P2O5) formed from the given amount of oxygen and excess phosphorus. Now, determine how much P2O5 is produced from the given amounts of phosphorus and oxygen.
A 0.0100 L sample of H2SO4 (Sulfuric Acid) was titrated with 0.150 M NaOH. It took 23.3 mL of NaOH from the buret -- that's 0.0233 L -- to reach the titration endpoint.
A sample of gas occupies a volume of 73.8 mL . as it expands , it does 127.5 J of work on its surroundings at a constant pressure of 783 torr what's the final volume of the gas
Wpump = 1500 kJ/h = 0.42 kW Qboil = 2.59 x 106 kJ/h = 718.7 kW Wturb = -227,300 kJ/h = -63.1 kW Qcond = -2.36 x 106 kJ/h = -656 kW What is the efficiency of the engine? How should we define it?
Determine how much heat is evolved or absorbed when 30.0 of lithium iodide completely dissolves in water.
Nitrogen dioxide decomposes at 6.50 x 10-3 M s-1 during the reaction: 2NO2(g) --> 2NO(g) + O2(g) Answer the following questions:
The sudden opening of the epiglottis and vocal cords releases this air explosively. Just prior to this release, what is the approximate pressure of the gas inside the lungs?
2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) Heating a 1.7184-g sample of impure NaHCO3 gives 0.196 g of CO2. What was the mass percent of NaHCO3 in the original 1.7184-g sample?
85.2 g sample of compound X4O10 contains 48.0 g of oxygen atoms. what is the molar mass of element x
What is maximum light wavelength (nm) to be absorbed for creating electron-hole pairs in semiconducting material cadmium telluride (CdTe)? CdTe has a band gap of 1.44 eV.
In which of the following reactions does an instantaneous increase in the volume of the reaction vessel favor formation of the products
Nitrate ion (NO2)^(-1) can be analyzed by creating an acidic solution of nitrite ion and adding excess iodide (I)^(-1) ions creating NO and I2. The I2 combines with excess (I)^(-1) to create (I3)^(-1).
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