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In lab we did thermochemistry, where we are supposed to find the heats of solution, heat change of calorimeter and molar heat solution of the salt. I calculated that the calorimeter constant for the water we had was 883.194 Joules. We took 1/10 of a mole of NH4Cl and tried to find the calorimetry from there. Our initial temp with 150 mL of deionized water was 23.72 degrees Celsius and after adding 5.349 g of NH4Cl salt, we found the equilibrium temp. to be 21.625 degrees Celsius. How do you calculate Specific Heat of Solution, Heat change of calorimeter, total heat change and molar heat solution of NH4Cl? Any help would be great.
When 54.01 g of Ba(NO3)2 is dissolved into a total volume of 3.23L of solution.
How many grams of CH4 is needed to produce 33.5 g CHCl3.
determine what is the percent yield of the reaction if 15.0 grams of nitrogen and 2.00 grams hydrogen react to produce
find the mass of the sugar c6h12o6 required to produce 1.82 l of carbon dioxide gas at stp from the
what was the delta t for the metal? c) how much heat flowed into the water? d) taking the specific heat of water to be 4.18J/gC, calculate the specific heat of the metal e) what is the approximate molar mass of the metal using the equation MM=25/S..
we want to prepare a buffer of ph 8.5643 by adding hcn and nacn to 1.860 l of solution. what is the ratio of hcn to
What proportion of benzoic of benzoic should be used with an equimolar mixture of adipic acid and hexamethylene diamine to produce a polymer of 10,000 molecular weigh at 99.5% conversion?
Calculate the fraction of space that is occupied by packing spheres in the (a) simple cubic, (b) body-centered cubic, (c) face-centered cubic (close packed) structures
calculate the purity of the ammonium chloride in the sample.
in a laboratory, 6.82 g of Sr(NO3)2 is dissolved in enough water to form 0.500 L of solution. A0.100-L sample is 0.0245 M solution of Na2CrO4.
The enthalpy change for the reaction below at 25oC is -1,249 kJ (per mole of C6H14). What is the internal energy change for the reaction at 25oC? 6 CO(g) + 13 H2(g) --> C6H14(l) + 6 H2O(l)
Now if your lab partner needed 7.030 x 1019 molecules of Sodium cyanide (NaCN), how many milligrams would you need to weigh out?
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