12/05/23

If 3.45 g of N2 H4 reacts with excess oxygen and produces 0.950 L of N2 at 295K and 1.00 ATM what is the percent yield of the reaction
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12/04/23

Identify the missing species in each nuclear equation. Replace the question marks with the appropriate integer or symbol.

Identify the missing species in each nuclear equation. Replace the question marks with the appropriate integer or symbol. 104Be----> 105B+ : ? 3414Si---> 3415 P+ :?19278Pt---> :? +42a:?... more
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11/11/23

What volume of 0.011 M HCl is required to titrate a solution containing 257 mL of 0.011 M Na2CO3 and 257 mL of 0.011 M HCO3- ?

The common-ion effect plays a key role in controlling the pH of solutions that contain both a weak acid and its conjugate base.
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11/10/23

Correctly expressed half-reactions

Correctly expressed half-reactions include which of the following? I.CrO4 2-+8H+ + 6e-→Cr3+ + 4H2O II.I- + 6OH- → IO3- + 3H2O + 6eIII.MnO4- + 2H2O + 3e- → MnO2 + 4OH-A.I only B.III... more
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11/10/23

The Ksp of strontium carbonate, SrCO3, is 5.60 x 10-10. Calculate the molar solubility, S, of this compound. S=? M
The Ksp of strontium carbonate, SrCO3, is 5.60 x 10-10. Calculate the molar solubility, S, of this compound.S=? M
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