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A laser beam enters a 19.5 cm thick glass window at an angle of 49.0 degrees (from the normal). The index of refraction of the glass is 1.42. At what angle from the normal does the beam travel through the glass (in degrees)?
If a reaction has a rate constant of 0.0117at 400K and .689/s at 450 K. Explain what is the value of the rate constant at 425 K
The maximum # of stereoisomers that are possible for a given molecule can be determined from the formula, 2^n, where n is the nubmer of stereocenters in the molecule.
How many kilocalories are required to produce 1.39 mol of aluminum? 2Al2O3 yields 4Al+3O2; (delta) H = +801(kcal/mol (+3350 kJ/mol )
To identify a diatomic gas () a researcher carried out the subsequent experiment: She weighed an empty 4.6- bulb, then filled it with the gas at 1.80 and 24.0 and weighed it again. The difference in mass was 9.5. Classify the gas.
Lactic acid, CH3CH(OH)COOH, has a Ka value of 1.4x10-4. How many grams of lactic acid must be added to make 151.0 mL of solution with a pH of 2.21
Given the reaction 4Al(s)+302(g)--2Al2O3(S), what is the minimum number of moles of oxygen gas required to produce 1.00 mol of aluminum oxide?
How could you bring about the subsequent conversions. You must give the needed reagents and conditions and write and equation.
A 32.6 iron rod, initially at 22.3, is submerged into an unknown mass of water at 63.3, in an insulated container. The final temperature of the mixture upon reaching thermal equilibrium is 59.1. What is the mass of the water
Calculate work (in kJ) when 422 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 445 K:
why is the difference between the result for the an ideal gas and that calculated using van der waal equation greater when the gas is confined to 5.00Lcompared to 22.41L
Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4 °C. The vapor pressure of water at 69.4°C is 227.7 mmHg.
Problem- A sealed chamber contains 1.604 g of CH4 and 6.800 g O2, The mixture is ignited. How many grams of CO2 are produced
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