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A transformer with 1000 turns in its primary coil has to decrease the voltage from 4400 V to 220 V for home use. How many turns should there be on the secondary coil?
Magnesium has three isotopes, Mg-24, Mg-25, and Mg-26. The percentage abundance of each in order is 78.70%, 10.13%, 11.17%.
CE 315: Design Problem - FLUID PROPERTIES AND HYDROSTATICS. Find an interesting example of hydrostatics. This could be something from your personal experience or perhaps something that you find interesting from the web
How much energy (in kilojoules) is released when 14.0 g of steam at 129.0 C is condensed to give liquid water at 78.0C? The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/ K mol for the liquid and 33.6 ..
nickel ion forms the complex ion hexaamminenickel (II) with a formation constant of(Kf) of 5.6 x 10 ^8. initially the complex is formed when .002 M nickel sulfate is added to .10 M ammonia.
A mixture of 3.50 moles of B and 5.25 moles of C in a 20.0 L container is allowed to come to equalibrium. What is the equalibrium concentration of A?
The following data were obtained when a Ca2+ ion-selective electrode was immersed standard solutions whose ionic strength was constant at 2.0 M.
Acidic and basic solutions have distinct physical and chemical properties. For chemistry courses, especially those with a laboratory component, it is important that you be able to distinguish these properties
The ion is stabilized due to the delocalization of the positive charge to the aromatic ring. Draw resonance structures that indicate the stability of this ion.
a particular household ammonia solution d 0.97 gml is6.8 nh3 by mass. how many milliliters of this solution should be
What is the molecular formula of the compound with empirical; formula C5H8O and molar mass 336.5 g mol-1?
Solve an equilibrium problem (using an ICE table) to calculate the pH of of each solution- A solution that is 0.20M in HCHO2 and 0.12M in NaCHO2
How many grams of sodium formate, NaCHO2, would have to be dissolved in 1.2 L of 0.13 M formic acid (pKa 3.74) to make the solution a buffer for pH 3.61
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