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Translate the following word equations into unbalanced chemical equations and explain how the equations represent what happens,
a. sodium carbonate reacts with silver nitrate to produce sodium nitrate and solid silver carbonate.
b. Sodium sulfate reacts with led(ll) nitrate to produce sodium nitrate and solid lead (ll) sulfide.
Which of the following acid-base pairs would work best for a laboratory experiment requiring a pH of 6.8? What molar ratios of the compounds would you use to prepare the solution?
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
Suppose you were given a pure stereoisomer that rotated the ppl either +60 degrees of -120 degrees ie. the same intensity of yellow light is observed for both of these readings. What would you do to determine if the proper reading were +60 or -120
The decomposition of urea in 0.1 M HCl is first order in urea and first order overall. When [urea] = 0.200 M , the rate at 61.0 °C is 8.56 x 10-5 M/s. What is the concentration of urea in this solution after 4751 s if the starting concentration is 0..
Carbon sequestration technologies are being actively explored by researchers as methods to remove CO2 from the atmosphere, thereby diminishing the greenhouse effect.
Calculate the molar mass of a gas if 4.40 g occupies 3.50 L at 560 torr and 41°C.
1.60 m solution78.0 ml is diluted to a volume of 278 ml and a 139-ml portion of that solution is diluted using 175 ml
A solution of I2 was standardized with ascorbic acid. Using a .1000 g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point. A. What is the molarity of the iodine solution? B. What is the titer of the iodine solu..
meteorological balloon contains 375 L of helium at 29°C and 0.928 atm. If the volume of the balloon can vary according to external conditions, what volume would it occupy at an altitude at which the temperature is -40°C and the pressure is 0.031 a..
An acid, HA, has the following thermodynamic values for its dissociation in water at 27 degrees celcius: ΔH=-8.0 kJ mol-1; ΔS=-70 J K -1 mol -1
you mix 242 grams of NaCl with enough water to form 500 mL of solution. What is the final molarity?
Find the mass of the sugar (C6H12O6) required to produce 1.82 L of carbon dioxide gas at STP from the reaction?
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