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A certain quantity of gas occupies 200 ml when collected over water at 15 degree C & 745 mm pressure. It occupies 182.6 ml in dry state at NTP. Find the vapour pressure of water at 15 degree C?
Combustion analysis of an unknown compound containing only carbon and hydrogen produced 1.1385 g of CO2 and 0.5805 g of H2O. What is the empirical formula of the compound
That would mean it wouldn't have any electrons to give. Can anyone answer this for me as to why there are 28 electrons being transferred if hydrogen has a oxidation state of +1 meaning it doesn't have any electrons to give?
aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH.
Problem- For a gaseous reaction, standard conditions are 298 K and a partial pressure of 1 atm for all species. For the reaction C2H6 (g)+ H2 (g) -> 2CH4 the standard change in Gibbs free energy is dekta G° = -69.0 kJ/mol. What is delta G for this..
What is the concentration of free [Cu2+] in an aqueous solution prepared as 0.25M in Cu2+ and 1.50M [NH3]. Cu2+(aq) + 4NH3? [Cu(NH3)4]2+ (aq) Kf = 5.0 x10^12
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water
A reaction has a first order rate constant of 4.31x10-5 s-1 at 25oC and 0.00111 s-1 at 65oC. What is the value of the rate constant at 43oC
What is the mass in grams of 2.75 moles of CH4, How many moles are in 365 grams of K2SO4.
when copper(II) hydroxide is heated it dehydrates, losing one molecule of water and forming copper(II) oxide.
Two acids, each approximately 0.01 M in concentration, are titrated separately with a strong base. The acids show the following pH values at the equivalence point: HA, pH = 9.5, and HB, pH = 8.5.
Carbon and silicon belong to the same group and are known to have similar properties. Do you think that silicon can replace the role that carbon plays in organic chemistry
a nugget of gold with a mass of 521g is added to 50.0ml of water. the water level rises to a volume of 77.0ml. what is
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