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usually some inception time is involved during the preparation of the Grignard. Explain the reason behind the inception time.
the temperature derivative of the entropy at constant pressure is related to what important,measurable physical quantity? Can this quantity ever be negative?And also recall how the curvature of a surface is related to the sign of a certain derivat..
What mass of sodium azide is required to provide the nitrogen needed to inflate a 47.0 L bag to a pressure of 1.2 atm at 47 C.
A+B+C =D The rate law for this reaction is Rate=k [A][C] 2/[B]^1/2 Suppose the rate reaction at certain initial concentration of A, B, and C is 1.14*10^-2 M/s.
Describe the basic steps involved in a gravimetric analysis. How does this procedure help us determine the identity of a compound or the purity of a compound if its formula is unknown?
How many grams of NH4Cl must be added to 424 mL of a 0.69 M solution of NH3 to prepare a pH = 9.00 buffer.
The compound BeBr2 has a total of how many shared electrons and how many non-bonded electrons?
A mixture of water and graphite is heated to 600 K. When the system comes to equilibrium it contains 0.13 mol of H2, 0.13 mol CO, 0.43 mol of H2O and some graphite
Phosphorous trichloride (PCl3) is produced from the reaction of white phosphorous (P4) and chlorine: P4(s) + 6 Cl2(g) → 4 PCl3(g) . A sample of PCl3 of mass 298 g was collected from the reaction of 75.37 g of P4 with excess chlorine.
Define Bonding and Molecule formation, Kn1 knowledge and understanding of atomic and molecular structure, chemical bonding, chemical formulas, chemical equations, mole calculations and the mole concept and the relation between elements of the Peri..
Describe the preparation of 1.5 liters of a 0.1 M acetate buffer, pH 5.0, starting from solid sodium acetate trihydrate
Study of a first-order reaction, In the study of a first-order reaction, A--->B, it is found that A/Ao=0.125 after one hour. The system initially consisted of 0.20 mole of a gaseous A at 25 degrees C and 1 atm
Specific heat of ice: 2.09g*c Specific heat of liquid water: 4.18j/g*c Enthalpy of fusion: 334j/g Enthalpy of vaporization: 2250j/g
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