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Butylated hydroxytoluene (BHT) is utilized as an antioxidant in processed foods. It prevents fats and oils from becoming rancid. A solution of 2.505 g of BHT in110.0 g of benzene had a freezing point of 4.600°C. Explain what is the molecular weight of BHT?
At 50 degrees Celsius and atmospheric pressure, water is in the liquid phase. What two things could be done to liquid water to change it to a vapor?
A voltaic cell has a standard cell potential equal to 0.74 V. If the standard electrode (reduction) potential for the anode is - 0.22 V, what is the standard electrode potential for the cathode
a student prepared a stock solution by dissolving 10.0g of koh in water to make 150. ml of solution. she then took 15.0
Benzene is a organic solvent with the formula C6H6. it boils at 80.1 degrees celcius and melts at 5.5 degrees celsius. benzene's density is 0.88gm/ml, its heat of fusuion is 10.0 KJoules per mole.
A 0.15 M solution of chloroacetic acid has a pH of 1.86. What is the value of Ka for this acid?
Given the following Delta H°298 values in kcal/mol , where "gr" stands for graphite, find Delta f H°298 of Fe(s) and Fe2O3(s) Fe2O3(s) + 3C (gr) --> 2Fe(s) + 3CO(g) 117 FeO(s) + C(gr) --> Fe(s) +CO(g) 37 2CO(g) + O2(g) --> 2CO2(g) -135 C(gr) + O2(..
If a 1,2-diol is subjected to a periodic acid test, a white solid will form when silver nitrate is added. What is the identity of the white solid?
What mass of O2 in grams is required for complete combustion of 25.5 g of CH4? What is the total mass of product expected from the combustion of 25.5 g of methane
The addition of bromine to ethene in the presence of high concentration of chloride ion in an inert solvent results in the formation of 1,2-dibromoethane and 1-bromo-2-chloroethane. No 1,2-dichloroethane is obtained. Explain above experimental fac..
A typical absorption due to stretching of the C=O bond is 1750 cm-1. (5.25 x 10 ^13 s-1). What is the force constant for the stretching vibration?
a compound containing carbon amp hydrogen atoms has a deep blue color. complete combustion of 288 mg of the compound
the initial pH value was2.5. You found that pH=pKa=4.2 when 12.50 mL of NaOH hadbeen added. The concentration of the sodium hydroxide was 0.500M. Calculate the molar mass of the acid
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