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Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C, and 51.0% O
Question options:
K2C2H4O4none of the aboveK2C4H4O6K3C4H5O6
A reaction has a rate consant of 1.23/mol*s at 433 Celcius and 24/mol*s at 533celcius.
KOH(aq)+ CoCl2(aq) --> KCl + Co(OH) what are the states of matter for the products?
MgNH4PO4 • 6H2O loses H2O stepwise as it is heated. Between 40º and 60º C the monohydrate (MgNH4PO4 • H2O) is formed and above 100º C the anhydrous material (MgNH4PO4) is formed. What are the phosphorus percentages of the monohydrate and anhydrous..
A system expands in volume from 2.0 L to 24.5 L at constant temperature. Calculate the work (w) if the expansion occurs against a constant pressure of 5.00 atm.
If the solution contains a metal cation such as \rm Ag^+, the flow of electrons will reduce the silver ion, causing solid silver to plate onto the electrode.
NaOH was added. Assuming no volume change, calculate the pH of the solution
fluride ion is poisonous in relatively low amounts. 0.2 g of F per 70 kg of body weight cause death . nevertheless, inorder to drinking water at a cencetration of 1 mg of F ion per L of water
For a particular reaction, deltaH is -93.8kJ and deltaS is -156.1 J/K. Assuming these values change very little with temperature, over what temperature range is the reaction spontaneous in the forward direction?
A magnesium goes from its grond state to its first electronically excited state. I assume the ground state is a singlet.
Calculate the concentration of OH- ion remaining in solution. Calculate the concentration of Sr+ ion remaining in solution. Calculate the concentration of NO3- ion remaining in solution.
What volume will 5.6 moles of Sulfur hexafluoride (SF6) gas occupy if the temperature and pressure of the gas are 128 deg C, and 9.4 atm?
Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot. a. What is the freezing point of a 50.0% solution of ethylen..
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