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Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 HCN solution.
If the same amount of heat energy is added to a beaker containing 100ml of ethanol and a beaker containing 100ml of water, which liquid experiences the greater rise in temp
A 326 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 640. mmHg. Calculate the moles of Ar present.
Cobalt-60 exhibits first order decay and has a half-life of 5.26 years. If it must be replaced in a radiotherapy unit when its radioactivity decreases to 75% of its original value, how long can a 1.00 g sample be employed?
Rank the following carbonyl-containing compounds in order of reactivity towards nucleophilic attack.
A sample of gas occupies 7 ml at stp. at what pressure would this sample occupy 500 ml if the pressure was changed to 525 degrees c?
Nitrogen gas reacts with hydrogen gas to produce ammonia by the following equation, N2(g)+3H2(g)-->2NH3(g). a) If you have 1.80 mol of H2, how many grams of NH3 can be produced
30.0 mL of pure water at 280. K is mixed with 50.0 mL of pure water at 348 K. What is the final temperature of the mixture? Ignore significant figures for this problem.
The atomic mass of chlorine is listened as 35.454 amu on the periodic table. It has two naturally occuring isotopes CL 35 and Cl 37. What are the approximate percentages.
What is the concentration of a solution formed by diluting 25.0 mL of a 3.2 M NaCl solution to 135.0 mL.
What are the protons and neutrons that are emitted from a helium atom called? Atomic mass is expressed in atm.
Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
If the final temperature of the system is 31.1°C, what is the specific heat capacity of the alloy? (c of water is 4.184 J/g×K)
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