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Problem- If 50.0 mL of ethanol (density = 0.789g.mL) initially at 7.0C is mixed with 50.0 mL of water (density=1.00g/mL) initially at 28.4 in an insulated beaker, and assiming that no heat is lost, what is the final temperature of the mixture?
Answer showing how to make each solution will get rated
In a butane lighter, 9.8 of butane combines with 35.1 of oxygen to form 29.6 carbon dioxide and how many grams of water.
How much heat will be released if 1M and 100ml of NAOH solution reacted with 1M and 100ml of HCl solution
Explain what is the pH of a 0.05 M solution of TRIS acid (pka = 8.3)
a student spots an unknown sample on a tlc plate and develops it in dichloromethane solvent. only one spot for which
Explain what is the MOLAR heat of combustion of benzene, C6H6 if combustion of 3.00 g of benzene causes a temperature increase of 5.18 deg C in a bomb calorimeter that has a heat capacity of 8.07 kJ/deg Celsius. (C6H6 = 78.1 g/mol)
Problem- Calculate the concentration of iodate ions in a saturated solution of barium iodate, Ba(IO3)2. The Ksp = 1.5 Ã? 10-9.
the half-life for the reaction at 550c is 81.3 seconds. how long does it take for 89 of phosphine sample to
When blood is donated, sodium oxalate solution is used to precipitate Ca2+, which triggers clotting. A 104 mL sample of blood contains 9.7 x 10^-5 g Ca2+/mL. A technologist treats the sample with 100 ml of .1550 M Na2C2O4. Calculate [Ca2+] after t..
Calculate the volume the gas will occupy if the pressure is increased to 1.87 while the temperature is held constant.
Find the pH of the equivalence points and the volume of 0.0372 M NaOH needed to reach it in titrations of 28.9 mL of 0.0850 M H2SO3
sodium bicarbonate can react with acids according to the following equation.nahco3 s h aq-----gt na aq co2 g h2o
Calculate the activation energy of this reaction in kJ/mol At what temperature would the half-life be 12.0 min?
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