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If magnesium ribbon is placed in warm aluminum sulfate solution, bubbles of gas formed.
What is the gas that is formed?
I need to write two net ionic equations to explain what happens.
A crosslinked polybutadiene (PB) has a glass transition temperature of 173K, and initial number average molecular weight of 40,000 g/mol, a molecular weight between crosslinks of 8000 g/mol, and a density of 1000 kg/m3 . Estimate: a) the shear modulu..
tiny water drops in the air disperse the white light of the sun into a rainbow. what is the energy of a photon from the
a gas occupies a volume of 458 ml at a pressure of 1.01kpa abd temperature of 295 k. when the pressure is changed the
A .25-mole quantity of CuSO4 is added to a liter of 1.0 M NH3 solution. What is the concentration of Cu2+ at equilibrium. [The formation constant for Cu(NH3)4 is Kf=5.0e13]
The excess EDTA from this reaction required 19.77 mL of 0.01883 M Pb2+ standard solution to reach an end point. Calculate [Cu2+] in the unknown
H3PO4 is a tripotic acid with a ka1=7.5x10^-3, ka2=6.2e-8 and ka3=4.8e-13. What is the value of K for H2PO4 PO4^3- + 2H+
c2h6g o2g co2g h2oga consider the unbalanced equation above. how many grams of o2 are required to react with 13.0 g
Question- The salt ammonium nitrate can follow three modes of decomposition: (a) to HNO3(g) and NH3(g), (b) to N2O(g) and H2O(g), (c) to N2(g), O2(g) and H2O(g). Calculate Gibbs rxn for each mode of decomposition at 298 K. I have A) 94.0 kJ B)-169..
A 12 oz can of Coke contains 46 mg of caffeine. One fluid ounce is equivalent to 29.57 mL (1 oz = 29.57 mL). What is the concentration of caffeine in Coke, in units of mg/mL
Exactly 5.00 days later, the rate of decay was found to be 177 disintegrations per minute. Calculate the half-life, in days, for the decay of this sample.
Problem- What is the concentration of NH4+ in a 0.20 M ammonia solution? The base dissociation constant for ammonia is 1.8 x 10^-5.
Which of the following, when added in equal molar amounts to the AgOH/water mixture, will lead to the greatest concentration of dissolved Ag+ at equilibrium?
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