Calculate the amount of heat needed to melt 45.9 g of solid ethanol and bring it to a temperature of -37.4 degrees celsius. Round your answer to 3 significant digits. Also, be sure...

Calculate the amount of heat needed to melt 45.9 g of solid ethanol and bring it to a temperature of -37.4 degrees celsius. Round your answer to 3 significant digits. Also, be sure...

Write the cell notation for an electrochemical cell consisting of an anode where Cr2+(aq) is oxidized to Cr3+(aq) at a platinum electrode and a cathode where Fe3+(aq) is reduced to Fe2+(aq)...

Write the cell notation for an electrochemical cell consisting of an anode where Cr2+(aq) is oxidized to Cr3+(aq) at a platinum electrode and a cathode where Fe3+(aq) is reduced to Fe2+(aq)...

the compound xylene consists of 90.49% C and the rest is hydrogen.What is the empirical formula?

1.16 mmol carbon disulfide

1.48 mol carbon tetrafluoride

What is the volume of a rock with a density of 3.68 g/cm3 and a mass of 430 g?

When 50.0 g of 0.200 M NaCl(aq) at 24.1 °C is added to 100.0 g of 0.100 M AgNO3(aq) at 24.1 °C in a calorimeter, the temperature increases to 25.2 °C as AgCl(s) forms. Assuming the specific heat of...

Hydrogen azide decompose on heating by the following unbalanced equation HN3=N2(g)+H2(g) If 3.0 atm of pure HN3 is decomposed initally, what is the final total pressure of the...

A solution of Sodium Chloride in water has a vapor pressure of 26.8 torr at 30C. What is the mole fraction of NaCl in this solution? (Vapor Pressure of pure water is 31.824 torr at 30C)

Of these substances in the pure liquid phase which one exhibits hydrogen bonding? a) CHF3 b)CH3-O-CH3 c)H2SO4 d)all of these I'm not sure why its only H2SO4

I solved this and got 208.68 (not rounded) did I solve this correct? Because others got 34.8

I have been stuck on this question and I'm required to show work

Anybody willing to explain this to me? For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6(g)...

Anybody able to help me solve this? At 25 °C, the equilibrium partial pressures for the following reaction were found to be PA = 5.05 atm, PB = 5.91 atm, PC = 4.24 atm, and PD = 5.67...

Anybody able to help and explain this problem? For a particular reaction, ΔH° is -46.7 kJ/mol and ΔS° is -123.8 J/(mol·K). Assuming these values change very little with temperature, over...

Hello, anybody able to help me out and explain this problem to me? For a particular reaction, ΔH = -99.84 kJ and ΔS = -16.80 J/K. Calculate ΔG for this reaction at 298 K. What...

Hello, would anybody be able to help me out and explain how to work this problem? Without referring to a data table, rank the following compounds by standard molar entropy. HF(g),...

Anybody willing to help me to understand this question a bit more? Above what Fe2 concentration will Fe(OH)2 precipitate from a buffer solution that has a pH of 8.49? The Ksp of Fe(OH)2...

Hello everybody I have been struggling with this and was wondering if somebody could help and explain it to me? Consider the following reaction. A(aq) <--> 2B(aq) Kc = 6.04 x 10^-6 at 500K...

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