What is its empirical formula
Terephthalic acid is composed of C, H and O. When 0.6943 g of tetephthalic acid is subjected to combustion analysis, it produced 1.471 g CO2 and 0.225 g H2O. What is its empirical formula?
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A 50-ohm air slotted line is used to measure a load impedance. Adjacent voltage minima are found at 20.2 cm and 28.7 cm from the load when the unknown load is connected and Vmax = 0:95 V and Vmin = 0:45 V. If the rst voltage minimum is located at
At 521 K the value of Kp for the equilibrium represented by the balanced equation is 1.07 x 100. Calculate the value of Kc at the same temperature. Express answer in scientific notation.
What is the anticipated mass of product "P" (assuming 4 NH3 ligands)? The product formula of "P" with four ligands is [Co(NH3)4Cl2]Cl.
A particular gaseous hydrocarbon that is 82.7% C and 17.3% H bymass has a density of 2.33g/L at 23oC and 746 mmHg. What is the molecular formula of this hydrocarbon?
A weather baloon with 2 meter diameter at ambient temp holds 525 grams of helium what type of electronic probe could be used to determine the pressure inside the balloon.
Determine the minimum distance from a 50 ft height building from which the ball can be thrown and not hit the side of the building , but it may land on the roof depending upon how long the building is.
If the titrant has a molarity of 0.2750 M and there are 25.00 mL of analyte present, what is the molarity of the analyte?
A 343 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 625 mmHg. Calculate the moles of Ar present.
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