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A mixture of the compounds magnesium chloride and sodium oxide contains 2.65 g of magnesium and is 82.5 % by mass magnesium chloride. The compound magnesium chloride is 25.5 % by mass magnesium. The compound sodium oxide is 74.2 % by mass sodium. Calculate the mass (g) of sodium in the mixture.
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
Determine the original mass of liquid, G, that was placed in the container. (ignore the volume occupied by the liquid in these calculations.)
An antacid tablet contraining calcium carbonate as an active ingredient required 9.53 mL or 0.0956 M H2S04 for comlete neutralization.
rigid container of fixed volume holds 0.10 mol of ch4g and 0.20 mol of arg with a total pressure of 600 torr. what
copper is electroplated from CuSO4 solution. A constant curent of 4.39 A is applied by an external power supply. How long will it take to deposit 1.00x10^2g of Cu
The ratio of effusion of an unknown gas is measured to be 24.0ml/min. Under the same conditions, the rate of effusion of pure methane gas is 47.8ml/min. What is the unknown gas?
In plating the Zn onto the nail, it required 3.0v. If you were plating Ag onto the nail, do you think that 3.0v will work? If not, should the Ecell be higher or lower. Explain.
what vibrational bands would be prominent in the Ir spectra of 3-aminoacetophenone and 1-(3nitrophenyl) ethanol? at approximately
A particular compound contains only C, H, N, and O. When 615 mg of this compound are burned in air, 712 mg of carbon dioxide and 369 mg of water are created.
Determine compound having greater Ksp or compound having smaller Ksp ? compute [Ag + ] when CuI just start to precipitate. What % of Ag + remains in solution at this point?
what is the chemical formula of a homonuclear diatomic gas if it has a pressure of 1.40 atm and a density of 1.82 gl at
calculate the volume in L occupied by 0.345moles of a sample of h2(g) at a pressure of 3.90 atm and a temperature of -163C.
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