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What is percentage of 12.0 g quantity of methane was used and collected 22.0 g of carbon dioxide
How much heat energy, in kilojoules, is required to convert 65.0g of ice at 18.0 degrees celcius to water at 25.0 degrees celcius.
a 290ml flask contains pure helium at a pressure of 756torr . a second flask with a volume of 480ml contains pure argon
Methylamine (CH3NH2) is a weak base. In a 0.100 M solution, 6.30% of the base is ionized. What is its Kb
A 343 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 625 mmHg. Calculate the moles of Ar present.
Consider the following species with tetrahedral electron-pair geometries and select the species with the smallest predicted bond angles.
During a lab experiment, we were to determine the relative level of saturation by adding, drop by drop, a solution of bromine in cyclohexane to oil and a fat, individually. However, the color that is supposed to be retained due to unreacted bromin..
You have been provided with a 0.1M aqueous solution of glycine at pH 9.0. Calculate how much (in ml) of 5M NaOH solution that you must add to 1 L of this 0.1M glycine solution in order to bring its pH to exactly 9.80
to a sample of alkaline earth metal carbonate mco3 0.250 g was added 30.0 ml hcl 0.250 ml. carbon dioxide gas evolved
a 1.150g of the hydrated salt ZnSO4. XH2O is dissolved in water and the sulfate ion is precipitated by adding an excess of BaCl2 solution. The mass of Pure and Dry BaSO4 precipitated obtained is 0.9335g. What is the formula of the zinc sulfate hyd..
Why does that least activating group directed the bromination to occur only at the para position
When 3.41 g of P4 is burned, 86.1 kJ of thermal energy is evolved at constant pressure. What is the molar enthalpy of combustion of P4?
the IUPAC name for the aniline C6H5NH2 with both CH3 and CH2CH2CH3 attached to the nitrogen molecule?
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