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Explain a small empty glass bottle is found to weigh 6.820g. The container when filled with DI water at 20.00 degree Celsius weighs 32.628g. The density of water at 20.00 degree Celsius is 0.99821 g/mL.
Compute the volume of the glass bottle to the correct number of significant figures.
What is the value of Keq for the reaction 4 HCl(g) + O2(g) reverse reaction arrow 2 Cl2(g) + 2 H2O(g)?
A student was in a hurry to leave the lab and recorded the melting point of the recrystallized trimyristin right after washing the crystals with cold acetone. The melting point range was 46 -50 degrees C. Is this a good result
The activation energy of a certain reaction is 46.7 kJ/mol. At 20 C, the rate constant is s^-1. At what temperature would this reaction go twice as fast
Brine is a heavily salted solution used for pickeling. What tests could be used to identify the ions present? What should uoi see
Determine the change in Ssys for the process if the specific heat capacity for ethanol = 2.42 J/g K. express your answer in units of J/K
Trimix gas is used for very deep diving. It is composed of three gases, usually helium, nitrogen and oxygen. The composition is denoted as percentage of oxygen / percentage of helium
Show the products of the reactions of these carboxylic acid with PBr3/Br2 before and after hydrolysis. a) Pentanoic acid
For the following gaseous rxn, if the system is heated and compressed, which way will it shift to restore equilibrium. A + B 2C + D + Δ
Radio station KLBJ broadcasts at a frequency of 93.7 × 106 s-1. Determine the length of the waves that corresponds to this frequency.
a disgruntled postal worker dumps a liquid culture of anthrax into a river nine hundred meters upstream of the intake
find the ph and the concentration of H2SO3 HSO3- AND SO3^2- in each solution:(a)0.050M H2SO3 (B) 0.050M NaHSO3
A tank having a volume of 1000 ft3 contains 22 lb of CO2, 46 lb of O2 and 154 lb of N2. What pressure will be indicated by a pressure gage attached to the tank if the gas is at ambient temperature (80°F)
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