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A 12.1 g sample of an alloy at 98.0°C is placed into 77.2 g of water at 22.0 °C in an insulated coffee cup with a heat capacity of 9.2 J/K. If the final temperature of the system is 35.0°C, what is the specific heat capacity of the alloy in J/(g.K)? Don't include units. cH2O = 4.184 J/g.K the answer is 5.67
what volume of dry H2 gas would theoretically be produced if it is measured at 20 degrees Celcius and 785 mmHg?
Determine if the following reactions will form a precipitate when mixed. If one is formed, write the BALANCED formula unit, the COMPLETE IONIC, and NET IONIC equations. If a precipitate doesn't form, write NR for no reaction
calculate the volume of a sample of carbon monoxide at -21degc and 359 torr if it occupies 3.65 l at 298 k and 758
A sample of ethanol (C2H5OH) has a mass of 38.6 g. How many carbon atoms does the sample contain?
The monthly average rainfall data (assumed to fall evenly over the whole watershed of 18 square miles) is as given below. The rainfall pattern repeats every year. The runoff from the land area of the watershed into the lake is 45% of the precipita..
when 2 moles of mg3n2 are allowed to react with water to form ammonia gas and magnesium oxide how many moles of h2o are
The Reaction of Ba(OH)2+2HCl=BaCl2+2H2O it requires 12.01mL of .03582 M HCl to react with 25.00ml of Ba(OH)2 solution calculate the concentration of the Ba(OH)
Predict whether a precipitation reaction will occur when aqueous solutions of ammonium sulfate and calcium acetate are mixed. Write the net ionic equation.
a student weighs out ten thousands grams of magnesium sulphate from a bottlethe sample was 5.720 g . after heating the
At 100 ?C the vapor pressures of hexane and octane are 1836 and 354 torr, respectively. A certain liquid mixture of these two compounds has a vapor pressure of 666 torr at 100 ?C. Find the mole fractions in the liquid mixture and in the vapor phas..
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.111 moles/liter in a sealed container and no product was present initially?
Find the heat transferred (in kJ) when 5.50 L of ethylene glycol (d = 1.11 g/mL, see Table 6.2 for c) in a car radiator cools from 37.7°C to 23.0°C.
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