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Propose a mechanism for the synthesis of 3-nitrophthalhydrazide from 3-nitrophthalic acid. (include arrow pushing electrons)
3-nitrophthalic acid will be first converted into 3 nitrophthalhydrazide by reacting with 25% hydrazine. Reduction of the nitro group to an amino group with sodium hydrosulfite affords luminol.
Assign an oxidation number to each atom in the following compound: K2CrO4 , H2SO3, FE(OH), Fe O H
a compound is found to have a molar mass of 598 gmol. if 35.8 mg of the compound is dissolved in enough water to make
The Tl in a 9.76 g sample of rodenticide was oxidized to the trivalent state and treated with an unmeasured excess of Mg/EDTA solution. The reaction is Tl3+ +MgY2-> TlY- + Mg2+
The water level in a graduated cylinder initially at 210 rises to 277 after a piece of lead is submerged. What is the mass in grams of the lead.
For the reaction: Ag(s) + SCN-1 ? AgSCN(s) + e- AgSCN is deposited on a pure Ag electrode. If the Ag electrode weighed 12.463 g initially, by how much did it increase in weight after the electrolysis of 75.0 mL of 0.0238 M KSCN
start with 4-cyclopentylphenol and react with NaOH, CH3I, NBS, heat show each step to get the final product.
Sdduming ideal-solution behavior, what is the vapor pressure of the solution at 63.5 C What is the mole fraction of ethanol in the vapor above the solution
Ethan contain 2.659 carbon and .668 gm of H, and one sample of acetylene contains 4.59 g of carbon and .382 gm of h. write emperical formula for ethane , acetylene
Carbon-14 has a half-life of 5730 years. A sample of carbon with a mass of 0.120 g has an activity of 40 decays/hr. The initial specific activity is assumed to have been 900 decays/hr/gram.
It takes 49.0 to raise the temperature of an 8.00 piece of unknown metal from 13.0 to 24.5. What is the specific heat for the metal?
a 130g piece of metal is heated to 286C and dropped into 87.0g of water at 26C, if the final temperature of the water is 58.3C.
A gaseous fuel mixture contains 23.0% methane CH4, 44.0% ethane C2H6 and the rest propane C3H8 by volume. When the fuel mixture contained in a 1.53L tank, stored at 748 mmHg and 298 K, undergoes complete combustion, how much heat is emitted
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