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Out of white phosphorus and red phosphorus, which one is more reactive and why?
What are the values of [SO42- ], [Pb2+ ], and [Sr2+ ] in a solution at equilibrium with both substances? the answer is not 5.*10^-4 or 7.94*10^-4 because mastering chem keeps marking me wrong for that. Can you work it out nicely.
A 100mL portion of 0.300 M acetic acid is being titrated with 0.200 M NaOH solution. Explain what is the [H+] of the solution after 50.0mL of the NaOH solution has been added? Assume the ionization constant of acetic acid is 1.8×10-5.
How many ATOMS of xenon are present in 3.25 moles of xenon trioxide. How many MOLES of oxygen are present in 9.37E+22 molecules of xenon trioxide
Calculate the amount of energy in kilojoules needed to change 117 of water ice at 10 to steam at 125 . The following constants may be useful.
calculate the energy of an electron in the hydrogen atom when n=2 and when n = 6. Calculate the wavelength of the radiation released when an electron moves from n=6 to n=2. Is this line in the visible region of the electromagnetic spectrum
Calculate the pressure of a helium sample at -207.3°C and 768 mL if it exerts a pressure of 175 kPa at 25.0°C and 925 mL
Reactant: water and 2.51 g of SbCl3 Product: 1.906 g of a solid of antimony, oxygen and chlorine, and 0.802 g of a single gas that is 97.20% chlorine and 2.75% hydrogen What is the empirical formula of the gas and the solid
BNCT relies on the initial targeting of tumor cells by an appropriate chemical compound tagged with 10 5 B , which preferentially concentrates in tumor cells.
Using the relationship between energy and wavelength (Beer's Law), explain which direction (higher wavelength or lower wavelength) the (max wavlength) will be found for butene compared with that for a butadiene
With complete QPSI, pertinent EQ and material and charge balance analysis, calculate CaCO3 solubility and pH for the system produced by treating excess CaCO3 with 1 L of 1 M (H4N)2SO4
Calculate the mass of I2 produced at the anode if a current of 2.85 A is passed through a solution of KI for 56 minutes.
When 0.228 g of the hydrate ZnSO4•xH2O is heated, 0.128 grams of anhydrous ZnSO4 remains. What is the value of x in the formula for the hydrate
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