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Calculate the specific heat capacity for a 22.7 g sample of lead that absorbs 237J when its temperature increases from 29.8 degree Celsius to 95.6 degree Celsius.
If a student weighed a copper wire that was significantly larger than the size recommended in the procedure.
What is the calculated mass of K4Fe(CN)63h2o needed to prepare 100.00ml of .0250M solution. I just need help with the whole thing including units and significant figures.
Explain what is the mole fraction of solute and the molal concentration for an aqueous solution that is 10.0% NaOH by mass
How many grams of urea must be added to 88 milliliters of water in order to obtain a solution with a mole fraction of 0.012 in urea
A gaseous mixture of O2 and N2 contains 39.8\% nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 385mmHg
A 0.9550g sample of a creation metal reacts with acid to liberate 380mL of hydrogen gas when collected over water at 20 degrees C and 720torr total pressure. Explain what is the equivalent mass of the metal. Explain what metal could it be
Question- 1. Calculate the freezing point of a solution containing 5.8% KCl by mass (in water). Calculate the boiling point of a solution above.
the lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acidthe lowest energy product formed in an aldehyde is treated with secondary amine in the presence of trace acidthe lowest energy product
What is the [Ag+] in a solution at equilibrium when ammonia gas is bubbled through a solution that is 0.023M in AgNO3 until the concentration of ammonia is 0.20M
Then she added 90ml of water to the same solution making it a total of 100ml and checked the solutions pH and it was 3. Predict the pH of the solution if Amber adds 900ml of water to the solution. Explain why you predicted that pH.
an industrial process makes calcium oxide by decomposing calcium carbonate. which of the following is not needed to
A 25.688 g sample of aqueous waste leaving a fertilizer manufacturer contains ammonia.
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