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what mass of carbon dioxide is produced from the complete combution of 100x10-3 of
a 2700 g piece of iron and a 2020 g piece of gold at 100 degrees c were dropped into 6800 ml of water at 1635 degrees c
the following experiment is used to determine the amount of helium gas in the container in the experimentv 6050 lh
which one of the following polyprotic acids is the weakest acid in terms of its first acid-ionization equilibrium
calculate the wavelength in nanometers of the radiation released when an electron moves from n 6 to n
which ones of the following salts contains a metal that will undergo extensive hydrolysis when dissolved in watera naib
a fellow student claims that entropy really isnt a state function for the following reason suppose 100 mol of an ideal
if 250 ml of 0451 m naoh solution is titrated with 0253 m h2so4 identify the principal components ions molecules in the
a describe the molecule xenon trioxide xeo3 using four possible lewis structures one each with zero one two or three
lagers and ales are two different types of beer a lager is typically fermented at a temperature of about 5oc while an
0688g of antacid was treated with 5000 ml of 05m hcl the excess acid required 421 ml of 1200m naoh for back-titration
from the concentration of the red dye and the total volume of the combined fractions calculate the number of moles of
if the electron affinity for an element is a negative number does it mean that the anion of the element is more stable
assuming complete dissociation of the solute how many grams of must be added to 275 of water to produce a solution that
platinum has a face-centered cubic crystal structure and a density of 215gcm3 what is the radius of the platinum
can anyone suggest a simple method for the separation of phenol from a solution which contains both phenol and
siler metal crystalizes in a face-centered cubic lattice with l as the length of one edge of the unit cube the
a solution of 750g of benzene and 750g of toluene has a total vapor pressure of 809mmhg at 303k another solution of
the atmic planes in a graphite crystal are separated by 335pm at what angle wuld you find the first ordern1 diffraction
how many liters of oxygen gas at 153 degrees celsius and 0820atm can be produced by the decomposition of 224g of solid
use lewis symbols to show the sharing of electrons between a silicon atom and hydrogen atoms to form a molecule in
sodium carbonate rm na2co3 is used to neutralize the sulfuric acid spill how many kilograms of sodium carbonate must be
what is the number of grams of nah2po4 which are needed to react with 4374 ml of 0285 m naoh nah2po4 s 2naohaq ----gt
1250 ml of 0307 m na2co3 are reacted with excess hcl the co2 g product is collected in a container of 630 ml volume at
liquid nitrogen trichloride is heated in a 250-l closed reaction vessel until it decomposes completely to gaseous