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what is the ph of a solution prepared by mixing 50.0ml of 0.125M KOH and 50.0 ml of 0.125M HCl
A 325-mL sample of solution contains 25.3 g of CaCl2 calculate the molar concentration of Cl in this solution
Derive the fractional compositions for monoprotic and diprotic systems showing the steps as clear as possible including a brief description of a fraction compostion plot.
A gas mixture contains 1.25 g N2 and 0.85 g O2 in a 1.55-L container at 18 °C. Calculate the mole fraction and partial pressure of each component in the gas mixture.
The atmospheric pressure at the summit of mount mckinley is 575 mmHg on a certain day. What is the pressure in atmospheres and in kilopascals?
What is the minimum amount of hydrogen gas in grams required to completely hydrogenate 12.5 Kg of 2-butene?
An apparatus to be used in a decomposition study was filled with N2 gas at 400.00 mm Hg and 400.0 deg C. The volume of the apparatus was 400.0 mL.
Phosphorus is combined with chlorine to give PClz a gaseous compound .calculate the value of z If you start with 2.097g of P and isolate 9.298g of PCLz .
1.0 atm pressure of oxygen is 0.041g/L. The solubility of oxygen in water at 3.0 atm and 25 C is _____ g/L.
Compute the number of moles - As we know many volatile substances are present in Earth's atmosphere in trace amounts.
if 0.00484 mol N2O effuses through an orifice in a certain period of time, how much NO2 would effuse in the same time under the same conditions ?
The reaction can be represented as {\rm 2 NI_3 (s)\rightarrow N_2 (g) + 3 I_2 (g)},~{{\Delta H}}_{\rm rxn} = -290.0~{\rm kJ} Find the change in enthaply when 16.0g of \rm NI_3 decomposes.
Hydrogen cyanide, HCN, is a poisonous gas. The lethal dose is approximately 300 mg HCN per kilogram of air when inhaled.
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