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Have a problem and the answer -- only concerned with how they got the propagation of error. Can't make it work. You have 0.035 +/- 0.002 mol of red dye, which you mix (thoroughly) with 25.00 +/- 0.05 mL of water. What is the concentration of the dye mix? .001400 +/- .000008 M
What is its melting point in degrees Fahrenheit? Water has a boiling point of 100°C. What is its boiling point in Kelvin?
How much energy is released during the complete combustion of 329 grams of cyclobutane ?
A gas mixture contains helium and oxygen at partial pressures of 255 torr and 0.450 atm. what is the total pressure, in mmHg, of the mixture after it is placed in a container on-half the volume of the original container
The bottle is then brought outside and stored at 0.0°C. (a) What mass of liquid water condenses inside the bottle?
Find the formula of a compound using stoichiometry and ideal gas equation and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
Write a dissolution for each precipitate that is soluble in CH3COOH: Na2C2O4, Pb(NO3)2, Al2(SO4)3, NaCl, NaOH
Celsius is allowed to expand into an evacuated vessel of 2.50 L volume. Does the gas do work? Explain
Calculate the change in pH when 6.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq)
Calculate the heat of solution for sodium acetate when 35.0mL of water is in a calorimter and 1.5461g of sodium acetate is added. The initial temperature is 23.0 C and the final temperature is 24.8 C.
Describe the health and sfety concerns of using H2S and thioacetamide as the S2- donor. which is used most frequently and why is its use preferential?
The total concentration of dissolved ions in seawater is about 1.1 M, but concentrations can vary depending on the exact location and conditions.
In the following experiment, the water in the glass is stirred by slowly lowering a weight (m=3kg) through a series of pulleys. If the 3kg weight is lowered 10m, the stirrer spins, but eventually all of the kinetic energy of the stirrer is turned ..
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