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Baking powder is made up of sodium hydrogen carbonate and calcium hydrogen phosphate. When baking powder is wet, these components reacts to produce carbon dioxide. The equation for this reaction is given below.
NaHCO3(aq) + CaHPO4(aq) --> NaCaPO4(aq) + CO2(g) + H20(l)
Assuming all of the carbon dioxide was released as a gas, how many liters of CO2(g) would formed at room temperature from 4.00g of NaHCO3 and excess CaHPO4?
the pH of a saturated solution of a metal hydroxide MOH is 9.30. calculate the Ksp for the compound
Calculate the concentration of Cu^2+ in a solution prepared by adding 4.5*10^-3 mol of CuSO4 to 0.490 L of 0.37 M NH3.
During the coupling reaction with 2-napthol, why does the coupling (electrophilic substitution) occur only in the 1-position? Write resonance structures for 2-napthol in basic solution to justify elecrophilic attack at the 1-position
KEtones also undergo the aldo condensation, although a succesful reaction often requires "enhanced" conditions, since the addition involves an unfavorable equilibrium constant.
determine the cell potential for the galvanic cell described below. pts bro4- 10.6 mm bro4- 4.9 mm ph 6.17 no3- 12.6
at 986°C is 0.63. A rigid cylinder at that temperature contains 1.2 atm of carbon monoxide, 0.20 atm of water vapor, 0.30 atm of carbon dioxide, and 0.27 atm of hydrogen. Is the system at equilibrium?
if you look up the melting point of phenylsuccinic acid you will find it to be 167-169 degree. your product probably
Calculate the cell potential for the following reaction as written at 73C, given that [Cr2+]=.885M and [Fe2+]=.0100M.
What is the formula for the principle molecular or ionic species present in a aqueous solution of hydrogen bromide
the vapor pressure of water at 90.0 is 526.8mm hg what mass of ethlene glycol (mw 62.7gmol) when added to 1.50 kg of warer will lower the vapor ptessure
What is the change in internal energy of the system, delta U. The force of gravity on a mass m is mg, where g is the constant acceleration of gravity (g=9.80 m/s^2).
An aqueous solution at 18C contains H2SO4 and H20 and the mixture has a specific gravity of 1.382. Assuming that the H2SO4 and H20 mix ideally what would the density of pure water be
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