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The reaction below can be used to prepare potassium permanganate (KMnO4), a powerful oxidizing agent. When the reaction is carried out with 58.34 g of CO2 and 325.8 g of K2MnO4 a total of 98.11 g of KMnO4 is produced. What is the percent yield of this reaction?
3K2MnO4(aq) + 2CO2(g) → 2KMnO4(aq) + 2K2CO3(aq) + MnO2(s)
A 55 mL sample of 0.15M Ca(OH)2 is neutralized by 47.2 mL of HBR. What is the molarity of the acid?
an hcl solution was made by mixing 20ml of concentrated 12m hcl with 100ml of isopropyl alcohol. what is the molarity
When 20.4 grams of the strong electrolyte sodium phosphate are dissolved in 143 grams of water, a. What is the molality of the solution. What is the %w/w of sodium phosphate
How many spectra must be averaged in order to increase the signal-to-noise ratio of a spectrum from 7/1 to 20/1? i took 20/7 and squared
Explain what is the empirical formula of the compound. Combustion engage reacting with excess O2. Presume that all the carbon ends up in CO2 as well as all the hydrogen ends up in H2O. As well assume that all the nitrogen ends up in the NH3 in the..
at 25ordmc the solubility product constant ksp for magnesium phosphate mg3po42 is 1.0acute10-24. the solubility product
Given the hypothetical redox reactions involving substances A, B, and C: A + B+ g? A+ + B C + A+ g? C+ + A B + C+ g? no reaction What is the arrangement of the substances in their order from strongest reducing agent to weakest reducing agent
if a 17.5 g sample of ironiii oxide reacted with 5.00 l of carbon monoxide at 788 torr and 76 degrees celsius until one
The mass of a golf ball is 45.9g . If it leaves the tee with a speed of 75.0m/s , what is its corresponding wavelength
Calculate w (in kJ) when 538 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 479 K: 2Fe2O3(s) + 3C(s) ? 4Fe(s) + 3CO2(g)
Arrange the following from the smallest number of representative particles to the largest number of representative particles.
The observed temperature increase is 2.35 °C. If the heat capacity of the calorimeter is 44.50 kJ•K-1, how many nutritional Calories are there per gram of the candy
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