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Problem- How much energy is required to heat 20 ml of water from room temp. (20 C)to (40 C) and also how much energy is released when 20 ml of water is cooled from initial 20 C temperature to 10 C?
Please answer only if you are 100% confident
Write the structure of a different product that could have been formed if you used ethanol containing substantial amount of water instead of the absolute ethanol
worldwide combustion of methane ch4 natural gasprovides about 10.9x1016 kj of energy per year. if methane has anenergy
Calculate the freezing point and boiling point of a solution of 383 g of glucose dissolved in 400. g of water.
A student did an alkalinity determination correctly, except that the sample titrated has a volume of 90.0 mL Volume A was found to be 4.50mL and volume B was 7.00 mL. calculate the alkalinity value from these data and the calculate the correct valu..
a student immersed a 8.27g of unknown metal sample in a graduated cylinder containing 1ml of water. she noted the water
the substitution reaction of (2R)-2-bromopentane and CH3O- undergoes substitution with NaOCH3.
A certain weak acid HA, has a value of 9.7×10?7.Calculate the percent ionization of HA in a 0.10 m solution. Calculate the percent ionization of HA in a 0.010 m solution.
Why should EH&S and FS professionals avoid inhaling the smoke produced when tar paper and roofing shingles smolder and burn?
What was the rate of production of 24Na in a 30-m reactor irradiation of 23Na if the activity of 24Na was found to be 1.0 mCi 3 h after the end of irradiation
Fundamentals of chemistry - The conditions under which gases behave most ideally and Under the Bronsted?Lowry definition a base
Question- List a few simple gas molecules for which the difference between Equipartition-Theorem heat capacities and experimental heat capacities would be expected to be large, and explain why these molecules violate the EP theorem.
Suppose that the atomic mass unit (amu) had been defined as one-twelfth of the average mass of an atom of nitrogen instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of potassium be on this new scale
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