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Compute the value from the previous slide (that is 4%) utilizing the equation for R pretentious light is traveling from air of? = 1.00 into glass of? = 1.50. Also do the calculation for? = 1.70.
a compound is composed of only C.H and O. the combustion of a 0.519-g sample of the compound yields 1.24g of CO2 and 0.255g of H2O.
Since cereal sample may have other materials other than Fe that absorbs light. Using cereal sample as the blank can eliminate these absorption so that the transmittance was solely due to Fe.
Which of the following accurately lists compouds in order of increasing solubility in water? A. LiCl2, Br2, O2, methanol (CH3OH) B. methanol (CH3OH), LiCl2, O2, Br2 C. O2, Br2, LiCl2, methanol (CH3OH) D. LiCl2, methanol (CH3OH), Br2, O2
Ben Franklin showed that 1.0 teaspoon of oil (5.0 cm3) can cover the surface of a still lake with area 0.50 acres
Which of the following buffers will have the lowest pH?
Briefly explain why it was not necessary for you to determine the mass of unknown liquid that you transferred to the flask before heating.
If two different substances have the same or nearly the same Rf values, it is difficult to separate these materials in a mixture. How could this experiment be changed to separate such a mixture
If this experiment was carried out precisely as directed in the procedure section by a student in Australia, for instance, must that student come up with a formula for the magnesium oxide other than MgO. Why not
A can of diet soda floats when placed in a bucket of water. A can of regular soda sinks in the same bucket.Fill in diet soda, regular soda, or water for the following,
The standard enthalpy of formation of NH3 is -46.0 kL/mol. Compute the thermal energy evolved when 8.0 g of H2 react with an excess of N2.
Complete combustion of 4.80 g of a hydrocarbon produced 14.7 g of CO2 and 7.02 g of H2O. What is the empirical formula for the hydrocarbon?
Calculate the ratio of dihydrogen phosphate to hydrogen phosphate in the blood at pH 7.4. The Ka = 6.3 x 10 -8 5. 2.
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