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Cinnamic alcohol is used mainly in perfumery, particularly in soaps and cosmetics. Its molecular formula is C9H10O. Calculate the percent composition by mass of C, H, and O in cinnamic alcohol. How many molecules of cinnamic alcohol are contained in a sample of mass 0.469g.
H2O is amphoteric meaning it can act as both a Bronsted acid and a Bronsted base.Show that H2O really is amphoteric by writing the relevant equations
Draw the Lewis structure for C1F 2 + (small s at bottom and small + at top) What are its electron-pair and molecular geometries? decribe the bonding in the molecule in terms of hybrid orbitals.
show work on the mineral greenockite is yellow sulfide of cadmium that is 78.0% cadmium and 22.0% sulfur. determine the empirical formula of greenockite.
A tank at is filled with of sulfur hexafluoride gas and of carbon monoxide gas. You can assume both gases behave as ideal gases under these conditions.
600 mL of water is heated from 20c to 85 c to make a cup of tea. How much heat flows into the water? NOTE: density and specific heat capacity of water 1.00g/mL and 4.18J/(g.c) respectively.
The cooling water enters the condenser at 70°F and its temperature cannot increase more than 25°F as it passes through the condenser.
A meteorological balloon of radius 1.0M at sea level and 20 degrees C. At it's maximum altitude the radius of the balloon is 3.0M and the temperature is -20 degrees C
For the reaction: N2(g) + 2 O2(g) ? 2 NO2(g), Kc = 8.3 × 10-10 at 25°C. What is the concentration of N2 gas at equilibrium when the concentration of NO2 is twice the concentration of O2 gas.
How many moles of ethane (C2H6) would be needed to react with 62.3 grams of oxygen gas?
To calculate the concentration of protein is it 10/990 or 10/1000? And does the original concentration of solution even matter when calculating the solution concentration?
Calculate the mass, in grams, of Ag2CrO4 that will precipitate when 50ml of 0.20M AgNO3 solution is mixed with 40ml of 0.10M K2CrO4 solution. Assume that Ag2CrO4 is completely insoluble (its Ksp is ~ 0).
Calculate the vapor pressure of a solution made by dissolving 109 grams of glucose
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