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Problem- Breaking a chemical bond requires approximately 102 kJ/mol of energy. What is closest to the order of magnitude of the energy required to split a nucleus in to its individual protons and neutrons?
Explain your strategy for completing your purification task defining your rationale as relevant.
a peroxidase enzyme isolated from human red blood cells was found to contain 0.29 selenium. what is the minimum molar
a sample of fresh grapefruit juice was filtered and titrated with the above i2 solution. a 100 ml sample of the juice
A student obtains a vinegar solution having an acetic acid concentration of 0.8512 M. What volume of 0.1036 M NaOH will be required to reach the equivalence point when 25.00 mL of the vinegar solution is titrated?
What is the gauge pressure of the gas in this mercury manometer
A 125.0ml contains a gas at 27 degrees Celsius and 760mmHg of pressure. the gas is pumped into an empty 1.50L flask also at a temperature of 27 degrees Celsius. What is the pressure ( in atm) of the gas in the new flask.
Estimate the vapor pressure at temperatures of 273, 298, 363, 383, and 423 K respectively
A sample of neon gas is held in a rigid 1.814L container with a pressure of 1.273atm at 25 C. 3.193g of an unknown gas is added to the container. The temperature remains constant, but the pressure rises to 2.386atm. What is the molar mass of the a..
Magnesium hydroxide, the active ingredient in milk of magnesia neutralizes stomach acid , primarily HCL, according to the reaction: Mg (OH)2 (aq) + 2 HCL(aq) ---> 2 H2 O (l) + Mg(OH)2(aq).
The resulting mixture exerts a pressure of 731 mmHg at 83°C. (a) What is the partial pressure of each gas in the container (in mmHg)? (b) What is the mass of the original sample (in g)
calculate the work done when 65.0 g of tin dissolves in excess acid at 1.00 bar and 23degc. assume ideal gas
Calculate the half-life (in s) of a first-order reaction if the concentration of the reactant is 0.0654 M 18.4 s after the reaction starts and is 0.0112 M 82.9 s after the reaction starts.
When doing a calorimeter experiment, my early temperature was21.C. while the MgO was added the first reading was 26.C and peaked at 30.1C. How would compute q, the amount of moles of MgO
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