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mass of magnesium = .021 grams initial volume = 50.00 mL final volume = 25.6 volume of liquid displaced = 24.4 volume of hydrogen gas produced = 24.4? moles of magnesium reacted = 0.51051 moles of hydrogen gas produced = 0.00086 ratio of volume displaced to moles hydrogen gas produced = 28372.1
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box
For each reaction, calculate the mass (in grams) of the product formed when 10.1g of the underlined reactant completely reacts. Assume that there is more than enough of the other reactant.
Determine the limiting reactant if 140 grams of Calcium phosphate combines with 3.63 mol of sulphuric acid and also explain how many moles of calcium sulphate can be obtained?
When a 1.50x102 g strip of zinc is dropped into a large beaker containing excess hydrochloric acid, how many grams of gas are formed?
hydrogen chloride gas is shipped in a container under 5.000 mm hg pressure that occupies 20 liters at 30 celcius how many liters of gas would be produced at stp?
A 1.90 mole quantity of NOCl was initially in a 1.50 L reaction chamber at 400°C. After equilibrium was established, it was found that 36.0 percent of the NOCl had dissociated.
Consider the reaction CaCN2 + 3 H2O → CaCO3 + 2 NH3 . How much CaCO3 is produced if 47.5 moles NH3 are produced
Determine the number of bonding electrons and the number of nonbonding electrons in the structure of SI2. Determine the number of bonding electrons and the number of nonbonding electrons in the structure of CO2.
prepare 250ml of a .5 mol/L aqueous solution of magnesium nitrae, Mg(N3)2. what mass of magnesium nitrate do you need?
Calculate the pH of the following aqueus solution: 0.61 M NH4Cl (pKb for NH3=4.74)
Ethanol (C2H5OH) is produced from the fermentation of sucrose in the presence of enzymes. C12H22O11(aq) + H2O(g) > 4 C2H5OH(l) + 4 CO2(g)
What type of error is this associated with the concentration of Cu2+ and why is it so? what is the concentration (in mole/L or M) of Cu2+ and NO3- in the final solution
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