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a coffee cup calorimeter having a heat capacity of 451 joc was used to measure the heat evolved when 00300 mol of naohs
what are the major sources and emissions of air pollution in your community what chemicals are they emitting and how
suppose 68 g of carbon monoxide is reacted with 8g of hydrogen gas to produce methanol chemical formula ch3oh or ch4oa
in the following problem you must1 determine the correct formula for each reactant and product2 determine the correctly
what is the volume occupied by 291 g of argon gas at a pressure of 123 atm and a temperature of 399
carbonic acid h2co3 is a diprotic acid withka1 42times10-7and ka2 48times10-11 theion product for water is kw 10
a 100 l flask is filled with 100 g of argon at 25 c a sample of ethane vapor is added to the same flask until the total
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a soil analysis was done for the exchangeable cations in the soil and the results were as followsca 18 gkg atomic wt
discussion 1 in this discussion consider how fats are digested and utilized in the body address the following questions
when silver tarnishes silver metal reacts with the element sulfur to form a gray deposit of ag2s if ag reacts with s to
hello need help with the following chem questionsnbspaluminum reacts with chlorine gas to form aluminum chloride via
directionsrefer back to equation 2 and consider carefully whether you could simply have used the ph value of the
a sample has a specific heat of 0155 calgmiddotdegc how much energy will be required to raise the temperature of the
please respond to one of the below questions in detail these questions are taken from sam keans questions and topics
what is the net ionic equation for the following reactionagno3 aq nacl aq agcl s nano3
a 120 ml sample of a compound has a density of 144 gml what is the weight of the sample in
a cleaning solution is found to have a oh- 32 x 10-12m what is the h3o and is the solution acidic or
calculate the increase in the boiling point deltat for a 187 m solution of sucrose dissolves as a molecule in
the following reaction takes place at a certain elevated temperaturefe2o3s 3cog rarr 2fel 3co2swhat is the percent
1 what is the mass of 38 molecules of so3nbspin g2 what volume in l of chlorine at 30oc and 743 torr is required to
write the elemental symbol with charge for when aluminum forms an ion and tell whether it is an anion or a cation think
1 what is the purpose of making derivatives of unknowns2 give three reasons why acetone might interfere with your
a ground state h-atom absorbs a photon of wavelength 9491 nm and its electron attains a higher energylevel the atom
identify the chemical components and the proportions necessary to achieve a buffer with the desired ph include relevant