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What can be said about a substance with a triple point above 1atm
1) The liquid state of the substance cannot exist.
2) The gaseous state at 1 atm pressure cannot be condensed to the solid at the triple point temperature.
3) The melting point of the solid must be greater than 0 C.
4) The liquid state cannot be maintained in a beaker open to air at 1 atm pressure.
5) The melting point and boiling point of the substance are identical.
6) The solid and liquid states of the substance cannot coexist at equilibrium.
a sample of helium effuses through a porous container 6.5 times faster than does unknown gas x?what is the molar mass
A sample of ammonium dichromate contains 2.25 moles of hydrogen atoms. How many moles of oxygen atoms are in the sample
Concentrated HCl is 36.5% HCl by mass and has a density of 1.18 g/mL.What is the molality?What is the molarity?
What is the concentration of unknown acid solution? Write the neutralization reaction, balance it, name the products THEN Solve the problem above.
How many grams of iron are formed by the reaction of 6.0 g Al with excess iron oxide, according to the following unbalanced equation
The heat of vaporization of water is 9.72 Kcal/mol.How much heat (in kilocalories) is required to vaporize 2.70 mol of H2O and how much heat (in kilocalories) is released when 440 grams of steam condenses
the enthalpy of formation = 0? Something with standard states? But how do I know what the standard states are
Question- One drop has a volume of about 0.05 mL, thus the concentration of Cu2+ in the dilute half-cell is about (0.05mL/25mL)(0.1M)=2x10^-14 M. use Nernest equation E=-(0.0592/n) log [An+ Mdil] / [An+ Mconc] to calculate it at 298K.
Based on the following definitions of stereospecifc and stereoselective, propose a reaction that is stereospecific but NOT stereoselective
A 3.5g sample of water reacts with PCl3 according to the following equation: 3H2O+PCl=H3PO3+3HCl How many g of H3PO3 are produced.
how many grams of CaCl2 should be dissolved in 500.ml of water to make a 0.20m solution of CaCl2
The two amino acids, glycine and alanine, can form two different dipeptides. Draw one of the possible dipeptides as it would appear at a pH of 7. Be sure to include any necessary nonzero formal charges in your drawing
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