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1. It is noted that an iron nail was with the 12gms mass absorbs heat of 15 joule; you need to calculate the final temperature if initially this iron nail was at temperature of 28 degree Celsius?
2. We have a solution that having sucrose and water (68.4 g of sucrose (C12H22O11) in 300. g of H2O); determine the freezing point of this solution? given that mole of sucrose = 342 g and Kf for water = 1.86oC/m
What properties of soil and its components could be measured to determine whether two soil samples are consistent with having a common origin?
What is the ratio of oxygen atoms to hydrogen atoms in the mineral cacoxenite, Fe4(PO4)3(OH)3 • 12H2O?
a sample of zinc metal reacts with an excess of hydrochloric acid hydrogen chloride via a single displacement reaction.
How much heat is required to raise the temperature of 42.5 g of water from its melting point to its boiling point? Express your answer numerically in kilojoules.
Determine at what temperature should the reaction be run to get a seventy five conversion of carbon monoxide?
What would the product/structure be if the reaction of methyl benzoate was a subsitution (add H and NO2 to it)?
suppose you titrate a 25 ml sample of vinegar with 17.62 ml of a standardized 0.1045 N solution of NaOH. what is the molarity of acetic acid in this vinegar?
a 2.85 g sample containing only mgo and cuo is placed in a 3.00 l container. the container is filled with co2 to a
Calculate the molarity of urea in a soln prepared by dissolving 16 g of urea (MM= 60.0 g/mol) in 39 g of H20. The density of the soln is 1.3 g/ml.
The following show the connectivity of atom only atom other than carbon and hydrogen are labeled how many degree of unsaturation are pressent in the compound? chose the correct answer from the following.
A sample of drinking water collected from a suburban Boston municipal water system in 2002 contained 0.45 pCi/L of radon. Assume that this level of radioactivity was due to the decay
Calculate the mass of silver bromide that will produce 0.023 mol Na3[Ag(S2O3)2].Answer in units of g.
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