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The addition of s^2- ion to Fe(OH)2(s) results in the formation of FeS(s). Explain why the addition of S^2- ion to Cr(OH)3(s) does not result in the formation of Cr2S3(s)
For the reaction 2CH4(g) +3Cl2(g) -> 2CHCl3(l) + 3H2(g), the standard enthaly of change of reaction = -118.6KJ. The standard enthalpy of change of reaction
He later discovers that the percent carbon in 100 g of the solution is 12.10% by mass and consequently, determines that his solution is too dilute in sugar. What mass NaCl did the practical joker add to the container of sugar?
The air track carts in the figure are sliding to the right at 1.0 meter per second. Find the speed of the carts.
Solving this question helps the student to understand how to find molecular formula using moles and mass and What is the molecular formula of this compound?
Consider an experimental run at 273 rm K where the initial number of moles (n_1) is actually 1.00 rm mol, and the final number of moles (n_2) is 2.00 rm mol.
What is the initial temperature of a gas if the volume changed from 1.00 L to 1.10 L and the final temperature was determined to be 255.5oC
A mass of 0.0600 g of magnesium metal is completely reacted with excess hydrochloric acid. Write the balanced equation to answer the question. What volume of the gas at STP would be produced
An injection containing 10.0pg 10 5 B was injected into a patient suffering from a brain tumor. The patient was irradiated by a neutron gun at the site of the tumor.
A 50 mL soln. of Mg(NO3)2 is mixed with a 50 mL solution of NaOH. The resulting precipitate, Mg(OH)2, that forms is 2.97g. Determine the concentration of solution of Mg(NO3)2?
Write the reduction half-reaction occuring at the C(s) electrode. (Include physical states of reactants and products.)
The Lyman series in the hydrogen atom corresponds to transitions that originate from the n=1 level in absorption or that terminate in the n=1 level for emission. Calculate the energy, frequency, and wavelength of the least and most energetic transiti..
When 2.5000g of NaOH were dissolved in 49.0g water in a calorimeter at 24.0C, the temperature of the solution went up to 37.1C.
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