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Explain the density of concrete is about 120 pounds per cubic foot. Alter this value into the units of grams per cubic centimeter. Explain the length of one side of a concrete cube that weighs 120 pounds?
what is the major product when you react cis and trans 1 broom 2-t-butyl with CH3CH2ONa and CH3CH2OH and which one is fastest and why
Find for the combustion of naphthalene. The heat capacity of the calorimeter, determined in separate experiment, is.
Ammonium carbamate can dissociate into gases at 25 C according to the reaction: NH2COONH4(s) 2NH3(g) + CO2(g) If sufficient ammonium carbamate is sealed in a flask, the total pressure will be 0.117 atm at equilibrium. What is the value of Kp at ..
Identify each of the following unbalanced aqueous reactions as an acid/base reaction (a), a redox reaction (r) or a precipitation reaction (p).
Some bacteria are able to harvest 1000-nm light. What is the energy (in kilocalories or kilojoules) of a mole (also called an einstein) of 1000-nm photons?
a 58.7g piece of iron at 67 degrees celcius is placed in a vessel containing 60.0g of water at 22 degrees celsius. the
Two objects at different temperatures are placed in a perfectly insulated calorimeter. When the system reaches equilibrium, which of the following statements is true?
The basic cycle for a steam power plant is shown by Fig 8.1. The turbine operates adiabatically with inlet steam at 6800 kPa and 550deg.C and the exhaust steam enters the condenser at 50deg.C with a quality of 0.96
Calculate the mass of limestone that must be decomposed to produce 500g of lime CAO the equation for the reaction is CaCO3(S) CaO(s) + CO2(g)
Calculate the pH after 0.13 mol of NaOH is added to 1.00 L of the solution that is 0.47 M HF and 1.21 M KF.
How much more soluble is AgCl in 1 Molar NH3 than in water?
Describe reasons the paper's physical properties are different from the water's physical properties.
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