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the ground state for a single valence electron of a rubidium atom z37 is 5s and its energy is ndash418 ev the valence
a lithium atom mass 117 x 10-26 kg is vibrating with simple harmonic motion in a crystal lattice where the force
if the solution is cloudy after precipitation and heating what does this indicate can the solution be filtered at this
if a 400 mg sample is assumed to be pure nacl calculate the millimeters of 01m agno3 needed to precipitate it
because of the movable plunger on a syringe the gas inside the syringe can be held at a constant pressure of 100 atm
your sofa wont fit through the door of your new sixth-floor apartment so you use a 108kw motor to lift the 844kg sofa
a calculate the molar concentration of commercial hydrochloric acid if the solution contains 37 for mass in hcl and if
a solute with mw 671 gmol is prepared in an aqueous solution in which the molality is 308 m the solution density is
indiana jones is pushing back a 305 kg box of treasure which slides 46 m down a 25deg incline and kept from
a capacitor is connected to an ac generator that has a frequency of 34 khz and produces a rms voltage of 19 v the rms
calculate the molar concentration of hcl if 25 ml of the hcl solution quantitatively react with 1958 ml of an 01062 m
a solid uniform 325 kg cylinder 650 cm in diameter and 124 cm long is connected to a 15kg weight over two massless
what is the boiling point of a 408 m solution of naphthalene in benzene the boiling point of benzene is
the blades in a blender rotate at a rate of 6900rpm when the motor is turned off during operation the blades slow to
phosphoric acid h3po4aq is a triprotic acid meaning that one molecule of the acid has three acidic protons estimate the
an electric power plant that would make use of the temperature gradient in the ocean has been proposed the system is to
how many grams of sulfuric acid h2so4 can be obtained from 578 grams of iron ore if the ore is 760 fes the reactions
a certain type of laser emits light that has a frequency of 60 times 1014 hz the light however occurs as a series of
chromium in its vi oxidation state is considered a hazardous carcinogenic species destruction of which may be
a cable passes over a pulley the cable does not slip on the pulley and the tension in the cable is not the same on
a student takes 05 moles of hcl and reacts it with 05 moles of sodium hydroxide in 100g of water solution in a
36 kg of a liquid metal with a latent heat of fusion of 3318 kjkg freezes while at its melting temperature of 398 degc
based on the solubility rules which of the following will occur if solutions of cuso4aq and bacl2aq are mixeda cucl2
in a model ac generator a 500-turn rectangular coil 800cm by 200cm rotates at 120rpm in a uniform magnetic field of
which of the following processes could theoretically produce the maximun mass of oxygen per gram of metal salt