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Injection of 1ul of 19.5ppm benzene as well as octane are 3.5 and 7.6 min respectively isothermal run at 120 C Column HP- 1, 25m length, .25 mm I.D., 0.33u film thickness. Carrier gas flow rate is 0.8ml/min. compute the retention time of nonane on the same column at 150 C isothermal as well as at the same flow rate. Explain
Calculate the change in enthalpy of reaction for two moles of CO(g) reacting with one mole of O2 (g) to form CO2(g). The molar heats of formation for each of these gases are CO -110.5 KJ/mol,
a solution is prepared by condensing 4.00l of a gas measured at 27degc and 746mmhg pressure into 580g of benzene.
A 633 milliliter NaCl solution is diluted to a volume of 1.34 L and a concentration of 8.00M. What was the initial concentration C1
Arrange the following in order of increasing basicity: a) ch3nh2, ch3nh3+, ch3nh- b) ch2o-, ch3nh-, ch3ch2- c) ch2ch(triple-bond)ch-, ch3ch2ch2-, ch3c(trip-bond)c-
what is the distribution coefficient for compound A that is soluble in diethyl ether to the extent of 20g/100ml at room temperature and soluble in water to the extent of 5.0g/100ml at the same temperature
The partial pressure of O2 in a sample of air on a mountain top is 115 mmHg. The oxygen makes up 21% of the gas in the atmosphere. What is the total atmospheric pressure on the mountain top?
how many liters of oxygen gas can react with 84.0 grams of lithium metal at standard temperature and pressure?4li o2
The fat content in milk can be measured by the extration with hexane. a 50.0g sample of whole milk was mixed with hexane and gently stirred.
Write a balanced equation for the reaction that occurs when hydrogen sulfate ion behaves as a Brønsted-Lowry acid in water.
Calculate the molarity of each of the following solutions. Part A - 0.14mol of LiNO3 in 6.0L of solution.
If 5.0 g of Al reacts with 4.45 g of O2, what is the empirical formula of aluminum oxide? (Type your answer using the format CO2 for CO2.)
Compute the grams of oxalic acid dihydrate (126.07 g/mol) required to neutralize about 35mL of approximate 0.10 M NaOH.
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