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What is the current cost (in US dollars) of mining a new block on Bitcoin network? Is it still profitable? What might be the trend in the future?
Write the carbon first and the H second in the formula and use the underscore key to denote subscripts in the formula.
can dissolve an aluminum soft-drink can in an aqueous base. 2 Al (s) + 2 KOH (aq) + 6H20 (l)---> 2KAI(OH)4(aq) + 3H(g) If you place 2.05g of aluminum in a beaker with 185 mL of 1.35 M KOH, will any aluminum remain. What mass of KAI(OH)4 is produce..
calculate the force and the pressure exerted on the wal given that the area of the wall is 100 cm squared and the speed of the atoms is 600m/s
A tiny speck (8.3 x 10-7 mol) of americium-241 is utilized in smoke detectors; explain how many atoms of americium-241 are there in one of these smoke detectors
In a titration of 25.80 mLs of 0.256 M HCOOH (formic acid, Ka = 1.8x10-4) with 0.286 M KOH, how many mLs of titrant will be required to reach the equivalence point?
Problem- A 7.50 L container holds a mixture of two gases at 35 degrees C. The partial pressures of gas A and gas B, respectively are 0.383atm and 0.805 atm. If 0.240 mol a third gas is added with no change in volume or temperature what will the to..
Balance the equations for the formation of HBr(g) and H2S(g) from their elements in their standard states. Include H°f for each reaction.
If the pH of the weak acid solution in is 2.34 after 7.20 mL of the NaOH was added, what is the Ka of the acid?
a proton in a linear accelerator has a de broglie wavelength of 128 pmwhat is the speed of the
Equilibrium can NOT be established when _____is/are placed in a 1.0L closed container: a. 0.25 mol SO2(g) & 0.25 mol O2(g), b. 0.75 mol SO2(g), c. 0.25 mol SO2(g) & 0.25 mol SO3(g), d. 0.50 mol O2(g) & 0.5 mol SO3(g), e. 1.0 mol SO3(g)
If a 1.120 mole sample of a compound has a mass of 13.93g Explain what is the molecular formula of the compound
the molar heat of vaporization at 298 k for diethyl ether is 26.0 kjmol. how much heat would be requiered to vaporize
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