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1 tungsten crystallizes in a cubic unit cell with an esge length of 3165 angrstromsand with a tungsten atom on each of
determine the density of pb if the length of one of the sides of the cubic unit cell s is 49505 angrstroms and pb packs
write an equation that represents the reaction of 2 ethanolic pbp solution with 4-methylcyclohexane and name the
a 1000 mg sample of a common organic compound containing c h and s was burned in oxygen forming 2835 mg of co2 and 484
a how many atoms are present in a 170-m length of 20 gauge copper wire 20 gauge wire has a diameter of 003196 in and
the average atomic mass recorded on the periodic table for cobalt is 58933 u this indicates that the most abundant
determine the empirical formula of a compound containing 6350 silver 825 nitrogen and the remainder oxygen where do you
some students wanted to react a piece of aluminum with sulfuric acid the students wanted to make sure that they had
if 120 grams of al reacts with 601 grams of feiiioxygen what is the mass of aluminum oxide formed in
how many moles of urea 60 gmol must be dissolved in 716 g of water to give a 24 m
using hesss law and the enthalpies of fusion and vaporization of water calculate the theoretical value of the heat of
there is always a degree of uncertainty in any measurement how does the use of significant digits reflect this
sucrose c12h22o11 which is commonly known as table sugar reacts in dilute acid solutions to form two simpler sugars
complete the lewis structure and determine the formal charges of the atoms consistent with each of the six proposed
how many moles of pure khp are in a sample if it takes 15 ml of 01005 m naoh to reach the endpoint of the
fluoridation is the process of adding flourine compounds to drinking water to help fight tooth decay a concentration of
all of the following are physical properties of a substance in a liquid state except aindefinite volume bdefinite mass
an element crystallizes in a body-centered cubic lattice the edge of the unit cell is 306 and the density of the
if you pipetted 5000 ml of an unknown brine and titrated it with 3764 ml of 01024 m silver nitrate solution calculate
if a salty crude sample was analyzed to have 1106 ppm salt calculate the pounds of salt per 1000 bbls of
josh liz and mia take a one way trip to venus the entire spaceship has a weight of 12445kg the gravity of venus is 12
for the given reaction how many moles of ammonia will result from 30 moles of nitrogen and sufficient hydrogennsup2g
the tetrahedral intermediate in the fischer esterification of formic acid hco2h with 1-butanol has the
if cyclobutane were flat it would have exactly 90 degree bond angles and could theoretically use only p orbitals to