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500 mL of 0.22 M HCl and 500 mL of 0.20 M NaOH were added to a calorimeter. Assume both substances have a density of 1 g/mL and a specific heat capacity of 4.184 J/g°C. The temperature of the entire system rose from 25.6°C to 26.7°C. Calculate the heat of reaction in units of kJ per mole of HCl.
what is the concentration of a nitric acid solution if a 10.00ml sample of the acid reqires 31.25ml of 0.135m koh for neutralization.
what is the volume of 1 mole of Helium gas when the pressure is 1.47 atm and the temperature is 287 K.
Determine the mass percent of CH3COOH in this solution if density of vinegar is 1.01 g/mL? Also calculate mole fraction of acetic acid in this solution and molality of this solution?
If it takes 34.0 mL of 0.0250 M K2Cr2O7 to titrate 10.0 mL of a solution containing Fe2+, what is the molar concentration of Fe2+.
A solution is 0.0100 M in Pb2+ ions. If 0.103 mol of solid Na2SO4 is added to 1.00L of this solution (with negligible volume change), what percent of the Pb2+ ions remain in solution.
You use a properly calibrated explosimeter to measure the flammable hazard inside a tank that contained toluene and may still have some residual product a. inside.
A helium balloon is filled to a volume of 2.5 L at atmospheric pressure. If the balloon is placed inside a sealed container and the pressure is reduced to 455 torr.
The solubility product of PbBr2 is 8.9 X 10^(-6). Determine the molar solubility in the pure water.
when 56.6g of calcium and 30.5g of nitrogen gas underfo a reaction that has a 93.0% yield, what mass g of calcium nitride forms.
Compute the boiling point of this solution: 1.00 X 10^2g C10H8O6S2(1,5-naphthalenedisulfonic acid) in 1.00 X 10^2g H2O (nonionizing solute).
Draw a structure showing four water molecules bonded to a central water molecule by means of hydrogen bonding. Explain why the pressure of the atmosphere decreases with increasing altitude
The volume of a sample of gas, initially at 25oC, increase from 158 ml to 450 ml. What is the final temperature (C) if the pressure in the container is kept constant.
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