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In which of the following would the bonding be weakened with the addition of an electron to form the negative molecular ion? A) B2 B) C2 C) N2 D) all of these E) none of these
What is the concentration of the vitamin C standard solution? Using a balance, 125mg of Vitamin C was weighed out and was added to a 100-mL beaker and dissolved in 50mL of DI water.
Important information about Finding expressions for the partial molar volumes at T and P, The molar volume (cm^3 mol^-1) of a binary liquid mixture at T and P is given by: V = 120x1 + 70x2 + (15x1 + 8x2)x1x2 (a) Find expressions for the partial mo..
we then titrated both the aqueous and organic layer. for organic layer, we used 0.1M (S2O3)2- for aqueous layer, we used 0.01M (S203)2- find concentration [I]2 (subscript 2) for aqueous and organic layer
Other than S=C=S; can I have S triple bonded to C single bonded to S? Wouldn't there be three electrons left on the triple bonded S; it would be sharing three when it started with six I don't understand? Help please.
How many grams of CaH2 are needed to generate 145 liters of H2 gas if the pressure of H2 is 825 torr at 21 C.
If a 180mg piece of gold (density =19.32g/cm^3 ) is hammered into a sheet measuring 2.1ft x 1.0ft , what is the average thickness of the sheet in meters?
What is the pH of a buffer that consists of 0.45 M CH3COOH and 0.35 M CH3COONa? Ka = 1.8 × 10-5
Calculate the heat that must be supplied to 12.40 g of Ne(g) at 0.150 atm to raise its temperature from 25.0°C to 51.0°C under the following conditions
What mass of NH4Cl should the student dissolve in the solution to turn it into a buffer with pH =8.77
how much heat energy in calories is needed to raise the temperture 10.0g of water 6.0C
What mass of natural gas {rm{(CH}}_4 ) must you burn to emit 268 kJ of heat?
the sample has a mass of .211 grams,a volume of .25 and a temperature of 275K at a pressure of .945 atmospheres. What is the most likely element forming the sample?
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