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A metal objet with a mass of 19 g is heated to 96 degree celcieus, then tranfered to a clorimeter containing 75 g of water at 18 degree celcieus. The water and metal objet reach a final temperature of 22 degree celcisus. What is the specific heat of this metal objet?
The mass percent of a three component gas sample is 58.0% C2H4O2, 14.6% NH3 and 27.4% CH2O. Calculate the partial pressure (atm) of CH2O if the total pressure of the sample is 0.340 atm.
an ethylene glycol solution contains 21.2 g of ethylene glycol in 85.4 ml of water. compute the freezing point and
NaOH + CO2 -→ Na2CO3 + H2O . If the average human body discharges 536 g of CO2 per day, how much NaOH is needed each day for each person in the spacecraft?
octane has a density of 0.692 grams per centimeter cubed at 20 degrees celcius . how many grams of oxygen molecules are
The initial concentration of a reactant in the first order is .28M. The rate constant for the reaction is.75s^-1. What is the concentration of the reactant after 1.85s?
How many possible trisubstituted derivatives C6H3X2Y can be obtained from the para disubstituted benzene C6H4X2?
what is the formula of a solid containing carbon that is a molecular bionic c network covalent d metallicnbspfor these
The following mixture was prepared in a reactor at 460°C. [SO2] = 0.0200 M; [NO2] = 0.0200 M; [NO] = 0.100 M; [SO3] = 0.100 M What will the concentrations of the four gases be when equilibrium is reached? Matching pairs [SO2] [NO2] [NO] [SO3]
The equilibrium point is reached at 120 seconds. After 200 seconds has passed, what is the concentration of sulfates in the drinking water sample.
The reaction of nitrogen dioxide with carbon monoxide NO2 + CO NO + CO2 is second order in NO2 and zero order in CO. Complete the rate law for this reaction in the box below
Determine the concentrations of BaBr2, Ba2 , and Br- in a solution prepared by dissolving 1.62 × 10-4 g BaBr2 in 1.50 L of water.
What would be the best indicator for the titration of 0.20 M CH3COOH titrated with 0.2 M NaOH? (Ka for acetic acid = 1.8 X 10-5) The pH ranges for the color change of some common acid base indicators are given below
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