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Upon shaping a 2.3kg sword, the blacksmith cools the iron blade (heat capacity 0.473 J/g*K) by quenching it in a large barrel containing 48 liters of water. If the temperature of the red-hot sword was initially 944.0oC and the temperature of the water (heat capacity 4.184J/g*K) was 23oC, compute the final temperature of the water once the blade has fully cooled. Presume no water vaporizes upon contact with the blade as well as that the density of water is 1g/mL.
How many total moles are produced when 0.69 mol of ethanol (CH3CH2OH) are combusted in oxygen to produce carbon dioxide and water
a solution containing 3.50 of sodium carbonate is mixed with one containing 5.00 of silver nitrate. how many grams of
consider the trioxane equilibria illustrated below trioxane itself is a hypnotic agent used therapeutically. use pc
a dancehall contains 173 men and 238 women. a certain promenade calls for the formation of groups with each group
Working on a lab report and need to answer the question: why would any insoluble hydroxide tend to dissolve in acidic solution?
If a solution containing 43.297 g of mercury(II) acetate is allowed to react completely with a solution containing 12.026 g of sodium sulfate, how many grams of solid precipitate will be formed. How many grams of the reactant in excess will remain..
What is the purpose of running both Dalton Vll mixed markers and lanes with individual markers on SDS-PAGE?
The standard free energy of activation of a reaction A is 73.9kJ/mol-1 (17.7 kcal mol-1) at 298 K. Reaction B is one million times faster than reaction A at the same temperature. The products of each reaction are 10.0 kJ mol-1 (2.39 kcal mol-1) mo..
a student mixed 75.0 ml of water containing .75 mol hcl with 75.0 ml of water containing .75 mol of naoh at 25c in a
Ammonia gas is produced by reacting hydrogen gas with nitrogen gas. To produce 450 g of ammonia gas using air as your source of nitrogen gas, what volume of air is required if the air is introduced at 25°C and 740 mmHg
Write the molecular equation for the combination of KNO3 (aq) and BaCl2 (aq). Include states of matter. I wrote 2KNO3 (aq) + BaCl2 (aq) ---> 2KCl (aq) + Ba(NO3)2 (aq) but it says it is wrong.
fun activities that expose you to real-world chemistry and biology. exposure to real-life research and career
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