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a gas mixture consists of 320 mg of methane , 175 mg of ar and 225 mg of neon. The partial pressure of neon at 300 k is 8.87 kPa. Calculate the volume and the total pressure of the mixture
Question- Copper(I) chloride is relatively insoluble in water with a Ksp of 1.7*10^*-7. However, in the presence of excess chloride ion, the complex ion CuCl2(Kf = 3.0*10^5) forms. How does the formation of the complex ion affect the solubility of ..
Identify the two important classes of catalysts. Choose a catalyst that exists in the human body. Explain its importance and how it works.
Question- 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 90.3 g of 32P, how much 32P was present 8.00 days ago
When sodium chloride is strongly heated in a flame, the flame takes on the yellow color associated with the emission spectrum of sodium atoms. The reaction that occurs in the gaseous state is Na^+(g) + Cl^- (g) ----> Na (g) + Cl (g)
The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
what mass of sodium hydrogen carbonate sodium bicarbonate are required to completely react withneutralize 2.5 moles of
how will you use the known compounds that are out in the lab to help you find the identity of your unknown compounds
In order to reject suspect data use the Q test. Why values fall lower than the 90 % confidence level so does that mean use all the values to calculate. And when do the Q test do use the repeated values also
An auto mechanic spills 90. mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid
State mathematical equation that show how you will compute the detected activity from the count rate the sample KCl
Consider a lake containing 39 ppb (parts per billion) of parathion, which has a log Kow = 3.8. If a sample of lake water was mixed with octanol, what is the expected concentration of parathion in the octanol?
Refer to the periodic table and select the symbol of the element that fits each of the following descriptions: a) the group IVA/14 semimetal in the fourth period.
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