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At what angular velocity in rpm will the peak voltage of a generator be 468 V, if its 550-turn, 4.04 cm diameter coil rotates in a 0.246 T field?
Define which reagent is used in excess alcohols or carboxylicacids and provide a reasonable explanation, acetic acid + ethanol -- > ethyl acetate
The most common source of copper is the mineral chalcopyrite. How many kilograms of chalcopyrite must be mined to obtain 320. of pure copper?
If a procedure calls for 2.0mL of concentrated nitric acid, what are the mass and moles of HNO3 actually used in the reaction
Finding Number of Atoms in a Molecule from Molecular Weight, As determined from the gas law, the molecular weight of a substance is eight times the atomic weight
Which families of organic compound does butane transform to in hydrogenation reaction? If no reaction would likely to occur, choose "No reaction."
how much energy in kilojoules is required to change 47.6g of ice at 0 degrees C to liquid water at the same temperature? In kilocalories?
A 6.52 g sample of hydrocarbon compund containing only C and hydrogen produced 20.5 g of CO2. A 9.29 ml sample weighing 21.6 mg was collected over water at a pressure of 796 torr at 25 C
the equivalence point occured at 4.67 mL of HCl. Calculate the pH at 0.00 mL of added HCl and at 2.00 mL of added HCL
A sample of methane gas (CH4) at 18.8 oC is heated. The pressure increases from 1.78 atm to 2.46 atm, and the volume of the sample changes from 4.09 L to 1.89 L.
A solution is prepared by dissolving 21.9 NaOH in 116.0 water. The NaOH solution has a density of 1.15g/mL. What is the % mm concentration of the NaOh solution What is the molarity (M) of the solution. What is the total volume (mL) of the solution
What volumes of 0.53 M HNO2 and 0.59 M NaNO2 must be mixed to prepare 1.00 L of a solution buffered at pH = 3.41
Given the following BALANCED equation: 2CO + 2NO --> N2 + 2CO2
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