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At 4.0 degrees Celsius, pure water has a density of 1.00g/mL. At 60.0 degrees Celsius, the density is 0.98g/mL. Calculate the volume in mL of 1,00g of water at each temperature and then calculate the percentage increase in volume that occurs as water is heated from 4.0 degrees Celsius to 60.0 degrees Celsius.
when 0.198 g of KHP is tritated with NaOH it requires 27.80 mL of NaOH to reach the endpoint of the reaction. Calculate the molarity of the NaOH solution.
If the volume is increased to 71.2 L at constant temperature, how many collisions will occur per square inch of this larger container
Platinum exhibits an extremely intense emission line at 214.4 nm. Could the spectroscope that you used in this lab, also be used to observe this electromagnetic radiation?
The rate constant of a reaction increases by a factor of 2 when the temperature is increased by 10C above room temperature (25C). Calculate the activation energy for this reaction.
We are asked to explain the pH and how to find hydrogen ion concentration - Find the pH of an acidic substance of your choice.
A 15 gram piece of iron is heated to a temperature of 47.0 ?C and then placed in contact with a 275 g piece of copper at 20.0 ?C (Cp = 25.46 J/mol-?C). What was the final temperature of the two pieces of metal?
Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12x10^-12. What is the solubility (mol/L) of silver chromate
A buffer is prepared by mixing 161 mL of 0.193 M NaOH with 695 mL of 0.687 M sodium bicarbonate (NaHCO3). Given that the Ka1 of H2CO3 is 4.5 x 10-7 and the Ka2 is 4.7 x 10-11, calculate the pH of the solution.
A tank at is filled with of sulfur hexafluoride gas and of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions.
A 355 ml container holds .146g of Ne and an unknown amount of Ar at 35 degrees C and a total pressure of 26 mmHg. Calculate the moles of Ar present
calculate the mass of a sample of copper that occupies 4.2* 10^-3 cm^3 if the density of gold is 8.94 g/cm^3.
Find the concentration of Cu2+ in equilibrium with CuBr(s)and 0.10 M Br
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