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How much heat is absorbed by nickel when 500.0 g nickel is warmed from 22.4 deg C to 58.4 deg C? [The specific heat of nickel is 0.444 J/(g.deg C.)]
A) 6.00 kJ
B) 4.00 kJ
C) 8.00 kJ
D) 10.0 kJ
A rock is a mixture of Uranium-238 and Lead-206. The molar ratio of Lead to Uranium is .1956. If the half-life for Uranium-238 is 4.5e9 years, how old (in years) is the rock
Explain why cis dichloroethene has a boiling point of 60 degrees C while trans - dichloroethen has a boiling point of 48 degrees C.
A list of compiled anhydrous masses for Na2CO3, CaSO4, and MgSO4 and I have to find the molar ratio of these anhydrous masses. The compiled list is from every section of chemistry, Different masses for different dates for each of the anhydrates
Calculate the number of 222Rn isotopes (t1/2 = 3.8 d) at the beginning and end of 25 days. Assume STP conditions.
Calculate the charge on the nitrogen atom in the following molecule? there are a pair of non bonding electrons on nitrogen
A solution of I2 was standardized with ascorbic acid. Using .1000 g sample of pure ascorbic acid, 23.25 ml of I2 were required to reach the starch end point.
What is the molar mass of a compound if one mole of the compound contains two moles of oxygen atoms, 6.022 x 10^24 hydrogen atoms, and 60.05 grams of carbon?
What is the mechanism for the trans-esterification reaction of acetylsalicylic acid and methanol into methyl salicylate
What volumes of 0.46 M HNO2 and 0.49 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.40
The reaction takes place in a bomb calorimeter where 4.50g of glucose are burned. What is the heat capacity of the bomb if the temp. of the water in the bomb increases from 22.75 degrees Celsius to 25.32 degrees Celsius?
A 1.000g sample of red phosphorus powder was burned in air and reacted with oxygen gas to give 2.291g of phosphorus oxide. Calculate the empirical formula & molecular formula of phosphorus oxide given the molar mass is approximately 282 g/mol
Assume that the specific heat of the solution is the same as that of pure water. Calculate delta(H) (in kJ/mol NH4NO3) for the solution proces.
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