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A balloon of CO2 (g) has a volume of 17.1 Litres and contains 8.3 moles of CO2. Some carbon dioxide escapes due to A leak , leaving only 3.5 moles of CO2 inside the balloon. Determine the new volume of the balloon?
A student measures the standard enthalpy change for reaction (C2H4(g) + H2O(g) CH3CH2OH(g)) to be -52.8 kJ :Calculate the standard enthalpy of formation.
Determine the new equilibrium concentration of hydrogen, if the hydrogen concentration is raised by 0.299 M?
determine the heat released when (ethene) CH2 CH2 reacts with hydrogen gas and form CH3CH3.If Bond enthalpies given are H H : 436 kJ/mol,C Br : 276 kJ/mol,C C : 612 kJ/mol,C C : 348 kJ/mol,C H : 412 kJ/mol;
The _______ of a titration occurs when the indicator changes color.
The percentage natural abundances of 39k and 41k are 93.2581% and 6.7302%, respectively. find out the isotopic mass of 41k.?
can you find out the name and formula of the unknown compound and determine the identity of the element?
What is the formula of the zinc sulfate hydrate? name this compound
Calculate How many grams of pure, solid sodium hydroxide are needed to make 500 mL of 0.15M NaOH solution and also express the answer in just 2 significant figures?
determine the freezing point of this solution If 18.0 grams of a nonelectrolyte that has molar mass = 44.2 g/mol are combined with 110.0 grams of the solvent,?
Compute the vapor pressure at the temperature of 25 degree Celsius of H 2 O above a solution formed by mixing 100.
Determine the concentration of the sodium hydroxide solution? Considering this balanced equation given as :
Calculate how much heat is required to added or removed to convert 100.0 g of steam at 115 0C to liquid water at 65 0C?
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