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Mark accidentally falls out of a helicopter that is traveling 15 m/s. He plunges into a swimming pool 2 seconds later. Assuming no air resistance, what was the horizontal distance between Mark and the swimming pool when he fell from the helicopter?
What happens to the absorbance at the analytical wavelength for P of the mixture as the reaction progresses?
Calculate the energy in joules and calories lost when 10.0 gm ethanol, {C_2H_5OH}, cools from 62.5 0C to -46.0 0C?
Exactly 100 mL of 0.10 M nitrous acid (HNO2) are titrated with a 0.10 M NaOH solution. Calculate the pH for the following. (a) the initial solution
A gas held at 798 mmHg in a 400 mL flask is released into a 3 L flask.Whats the new gas pressure?
What is the molar mass of X if 0.85g of X depresses the freezing point of 100g of benzene by 0.47Cdegrees?
How many grams of water can be cooled from 34°C to 11°C by the evaporation of 85 g of water? (The heat of vaporization of water in this temperature range is 2.4 kJ/g. The specific heat of water is 4.18 J/g-K.)
Correct the second part of each of the following names. (Type your answer using the format copper(II) chloride for CuCl2, and CO2 for CO2.) (a) N2O4 is tetraoxygen dinitride.
draw the structure of a hydrocarbon that reacts w 2 equivalent of h2 h sub 2 on catalytic hydrogenation and gives only
Phosphorous acid, H3PO3(aq) is a diprotic oxyacid that is an significant compound in industry and agriculture. Compute the pH for each of the subsequent points in the titration of 50.0mL of a 3.0 M H3PO3(aq) with 3.0 M KOH(aq).
Suppose that 1.06 g of rubbing alcohol (C3H8O) evaporates from a 64.0-g aluminum block. If the aluminum block is initially at 38°C, what is the final temperature of the block
A sample of 1 mol Kr expands reversibly and isothermally at 373 K from 1L to 10L. Use the virial equation of state up to the second coefficient B= -20 cm3 mol-1 and dB/dT= -25 cm3
In photosynthesis, plants use energy from the sun in combination with carbon dioxide and water to form glucose (C6H12O6) and oxygen. If 4.50 moles of water react with carbon dioxide, what mass of glucose is produced?
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