A student heated a 4901 g sample of hydrated iron chloride
A student heated a 4.901 g sample of hydrated iron chloride. After heating, the anhydrous iron chloride has a mass of 3.010 g. Calculate the percentage by mass of water in the hydrated compound.
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A piece of iron weighing 85.690 g was burned in air. the mass of the iron oxide produced was 118.350 g. What are the moles of iron in the original sample
The density of the sample is 1.01 g/mL. The titrant is 1.017 M NaOH. The average volume of titrant required to titrate 25.00 mL subsamples of the vinegar is 20.78 mL.
For the typical volume charge density I? = -1.1 A? 10-3 C/m3, what is the difference in the electric potential between the pipe's center and its inside wall
Given the following equation, how many grams of PbCO3 will dissolve when 1.5L of 1.00 M H+ is added to 6.00g of PbCO3? PbCO3(s) + 2H^+(aq) = Pb^2+(aq)+ H2O (l)+ CO2(g)
A solution is made by mixing 49.0 mL of ethanol, C2H6O, and 51.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 degrees celcius
At its highest temperature, a space heater has a resistance of 35.5 Ω when it is plugged into a wall outlet supplying a peak voltage of 162.6 V sinusoidally at 60 Hz
The reactant concentration in a zero-order reaction was 9.00×10?2{\it M} after 100s and 2.50×10?2{\it M} after 390s . What is the rate constant for this reaction
The reactant concentration in a zero-order reaction was 9.00×10^-2 M after 100s and 2.50×10^-2 M after 390s . What is the rate constant for this reaction
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Outline a social issue that is important to you. Describe why it is important to you, why it is important from a societal perspective and how you think
Lifespan psychologists are unlikely to investigate both changes as well as consistencies that exist in different individuals'
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Working in the yard, you feel unpleasantly hot and sweaty when you come in the house, so you take a shower and begin to feel better.
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