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a) Somebody puts an expandable balloon on the opening of the bottle, without any gas escaping. The outside pressure is 1.10atm and the temperature has decreased to 25.8 degree celsius. Calculate the new volume of the gas.
b) Through a valve, 7.0g of nitrogen gas is added to the bottle with balloon discussed in b). The temperature and external pressure are constant. Calculate the partial pressure of nitrogen.
Consider the following ions: NH^4+, CO3^2-,Br^-,S^2-,ClO4^- A. Which of these ions in water gives an acidic solution B. Which of these ions will have no effect on the pH of an aqueous solution C. Which ion is the strongest base
What is the wavelength (in meters) of photons with the following energies? In what region of the electromagnetic spectrum does each appear? 91.0 kj/mol
Write balanced half-cell reactions for CH2O oxidation and SO4 reduction to HS and then add them together to get the balanced overall redox reaction.
properties of subatomic particles.1. fill in the missing relative masses and relative charges for each of the subatomic
Based on the stereochemistry of the addition of bromine to cinnamic acid, write structure of the dibromide product(s) that you think will be formed as the result of the reaction of Z-2-pentene with bromine
a student dispensed 82mL sodium hydroxide(titrant) into the lemon juice(analyte) before the end point was reached. Estimate the analyte concentration, assuming that the acid in the lemon juice is monoprotic.
examine the reaction you have written. what will be the effect of decreased pressure on the system on the
The following data on the infrared absorption wavenumbers (wavenumbers in cm-1) of molecules are taken from Spectra of diatomic molecules, G. Herzberg, van Nostrand (1950)
If you were to combine a 200.0mL aqueous solution of 0.75M NaHCO3 with 200.0mL of 0.50M CaCl2 in a constant pressure calorimeter, what change in temperature would you measure?
will 500 mg of Na3C6H5O7 (258.1g/mol) or 500 mg of CaCO3 (100.1g/mol) neutralize more moles of hydronium ion? Assume that both the C6H5O7^(3-) and CO3^(2-) ions become fully protonated.
ice melts at 273.15K with delta H fusion = 6.01 kJ/mol. if the ice mass is 13.8 kg in a swimming pool whose temperature is held at 22.5 degree Celsius. What is the entropy change for melting the ice?
The temperature of 1.5 kg of ethanol is 37°C. What will the final temperature be if 80,000 J of energy as heat is added to the ethanol.
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