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find the ph of the equivalence points and the volumeml of 00372m naoh needed to reach it in titrations of a 422ml of
what is the natural frequency of a lc circuit with l 20 mh and c 800 f the capacitor is initially charged to 120
tetraboric acid h2b47 is prepared by heating boric acidh3bocondensation reaction if 4000 mmolo h3bo3 are used what
a piece of conductor is moving in a uniform magnetic field b 02 t with a velocity of 05 ms perpendicular to the
calculate the rotational partition function of ch4 a by direct summation of the energy levels at 298k and 500k and b by
a 46mh toroidal inductor has 150 identical equally spaced coils if it carries an 120a currenta how much magnetic flux
it is possible to detect nh3 gas over 10-2 m nh3 to what ph must 1 m nh4cl be raised to form detectable
a battery of internal resistance r 02 ohms and emf 120 v is connected to a device with resistance r 60 ohmswhat is
chromel is an alloy composed of nickel iron and chromium a 07176g sample of the alloy was dissolved in hno3 and diluted
a farsighted person can read printing as close as 250 cm when she wears contacts that have a focal length of 374 cm one
a 350g sample of histidine dihydrochloride fw 22808gmol in water and diluting to a final volume of 5000ml the resulting
two narrow slits are illuminated by a laser with a wavelength of 581nm the interference pattern on a screen located x
a 100 ml sample of aqueous h2so4 requires 2432 ml of 0134 m naoh to reach the endpoint what is the molar concentration
a 18 cm tall object is placed in front of a concave mirror with a radius of 26 cm the distance of the object to the
a radioisotope decays which two types of nuclear change would yield exactly the same isotope as producta alpha amp beta
antimycin a blocks electron transport in complex iii of mitochondria could the addition of antimycin a to chloroplasts
a a microwave radio transmitter emits electromagnetic waves of a single wavelength the maximum electric field 551 km
a projectile is launched at 450 degrees with the horizontal its initial speed is 250 msa what is its speed and
1 calculate the solubility of laf3 in grams per liter in 13times10-2 m kf solution2 calculate the solubility of laf3 in
a pair of slits separated by 13 mm are illuminated with monochromatic light of wavelength 573 nm the light falls on a
a 250-ml sample of potassium chloride solution was found to have a mass of 25115 g when the solution was heated to
a car moving at 200 ms decelerates at 700 ms2 how far will it travel before stoppingat the same deceleration rate if
the kinetic energy of a 50 kg bowling ball just before it hits the ground is 4550 j if the ball was originally thrown
a hedgehog pushes a rock of 19 kg up a ramp which is tilted at 195 degrees to horizontal at a constant speed of 025 ms
if e degree cell-051v for the reaction below at 25 degree c what is the value of the equilibrium constant at this