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Calculate the mass of MgCO3 precipitated by mixing 10.00 mL of a 0.200 M Na2CO3 solution with 5.00 mL of a 0.0350 M Mg(NO3)2 solution.
how many grams of ice at -20.5 degrees c can be completely converted to liquid at 16.3 degrees c if the available heat
Problem- Prepare a separation scheme for Al3+, Ba2+. Cu2+, and Mn2+. Include equations for all reactions in each step of the scheme.
What is the partial pressure of He in a container that is at a total pressure of 2.33 atm and contains
Convert the subsequent voltages. Presume the silver-silver chloride as well as calomel reference electrodes are saturated with KCl giving cell potentials of 0.197 V as well as 0.241 respectively.
Write a balanced chemical equation for the reaction between silver nitrate and aluminum. What type of reaction is this?
Problem- What is the degeneracy of a quantum state for a hydrogen atom for which n = 2 and l = 1? Please explain and show math
The Ksp of mercury(II)hydroxide, Hg(OH)2 IS 3.60*10^-26. Calculate the solubility of this compound in g/L.
An automobile has a wavelength that is not measurable by human standards. If the car has a mass of 4000 lbs (1.81 x 103 kg) and travels at 60 miles/hr (26.8 m/s), calculate the wavelength of the car.
a gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures 257
Calculate the time in hours which would have been required for 99.9% of the t-butyl chloride to hydrolyze, if the reactant had been allowed to proceed without the addition of extra water or heating
a 0.2 m3 rigid tank initially contains refrigerant 134a at 1 mpa saturated vapor. the tank is connected to a supply
1.) How many formula units are in 1 mole of (NH4)2SO4? 2.) How many moles are in 8.5 x 1026 molecules of CO2?
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