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Explain many commercial products contain more than one food coloring dye. A certain orange-colored sports drink as both red and yellow dye. The red dye is present at 1.0x10-5 m. Compute the amount of yellow dye is in the total absorbance of the sports drink is 0.534 and known molar absorbitivity are 6.72x10^3 (red) and 3.88x10^4 (yellow). use a cell path length of 1cm.
The equilibrium pressure is measured as 0.8 atm. What is the molecular weight of the gas? 1. 138.5 g · mol?1 2. 12.5 g · mol?1 3. 3.6 g · mol?1 4. 45 g · mol?
Which compound requires a higher energy photon to cause a p to p* (HOMO/LUMO) transition,
Calculate the vapor pressure of a solution containing 29.4 g of glycerin (C3H8O3) in 120 mL of water at 30.0 C. The vapor pressure of pure water at this temperature is 31.8 torr
Determine q for the acid-base reaction, assuming that the liquids have densities of 1.00 g/mL and the same heat capacities as pure water.
1. calculate the ph of each of the following solutionsa. .100 m hc3h5o2 ka1.3 x 10-5b. .100 m nac3h5o2c. pure h2od. a
Calculate the pH of a buffer solution that is 0.200 M HC2H3O2 and 0.100 M in NaC2H3O2. Calculate the pH of the buffer that reults from mixing
Calculate the pH of a solution formed by mixing 65 mL of 0.30 M NaHCO3 with 75 mL of 0.30 M Na2CO3
Determine which structure do you expect to contribute the most to the actual structure of BrO 4 - keep in mind to take in expanded octets, as suitable?
Based on coulombic attractions, list the magnitude of attraction between ions from the least to highest. why? Nacl, Na2SO4, MgSO4
if the freezing point of a 0.106m CH3COOH solution is -0.323 degrees celcius, what is the percent of acid that has undergone ionization?
an aerosol spray can of deodorant with a volume of 350 ml contains 3.2 g of propane gas c3h8 as propellant. what is the
Equal Numbers of moles of H2 gas and I2 vapor are mixed in a flask and heated to 700 degrees celcius. The initial concentration of each gas is 0.0088 mol/L and 78.6% of the I2 is consumed when equlibrium is achieved according to the equation
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