One mole of hydrogen atom contain 6.02 *10^23 hydrogen atoms and occupies 22.4 L. How many hydrogen atoms are contained in 25.5 mL of this gas? Fill in the following conversion factors. Then use those to solve the problem.(______mL/ _____L) ; (_____mole/_____hydrogen atoms) ;(____ mole/____L)

A pure compound A gives off a gas when heated and is ultimately converted to another pure compound B. If the initial weight of A is 7.40 g and the final weight of B is 3.90 g, compute the percent mass of A that is attributable to the emitted gas. Answer in grams

A mixture of methanol and water contains 60.0% water by mass. Assuming volume additivity: If the actual specific gravity of the mixture is 0.9345: How many liters is required to provide 150 mol of methanol?

A bottling plant has 163,250 bottles with a capacity of 355 mL, 123,000 caps, and 33,350 L of beverage. (a) How many bottles can be filled and capped? HopHelpCh3N9(b) How much of each item is left over? L of beverage bottles caps(c) Which component limits the production? number of capsnumber of bottles    volume of beverage

Given the following data forMass of test tube, beaker and cyclohexane = 100.17 gMass of test tube and beaker = 84.07 gFreezing point of cyclohexane = 6.59 oCMass of weighing paper + naphthalene =1.080 gMass of weighing paper = 0.928 gFreezing point solution = 5.11oCKf = 20.8oC/mDetermine the followinga. mass of cyclohexane in g (2 decimal places); _____b. mass of naphthalene in g (4 decimal places);  _____c. freezing point depression (2 decimal places); _____d. molality of solution (3 significant figures); _____e. moles of naphthalene (3 significant figures);  _____f. molar mass of naphthalene, experimentally (3 significant figures);  _____g. % error if theoretical molar mass of naphthalene is 128.17 g/ mole, USE ABSOLUTE VALUE (3 significant figure);  ____

You wait an empty glass filter on the balance and record a way of 12.4361 g. After a 1.00 L sample of river water has been filtered and the filter has been dried for one week at 105°C, the dried filter and TSS weigh 13.682 g. What is the weight of the TSS? Make sure to give the answer in correct significant figures in with the correct units. Thank you!

How many moles of gas will occupy a volume of 250.0 mL if 4.00 moles occupy a volume of 340.0 mL? Just give the number with the correct rounding and significant figures. The assumption is the answer is in moles.

A party balloon contains with a volume of 24.4 liters of air contains 0.8 moles of helium. If some gas escapes and 0.5 moles are still left inside the balloon, what volume in liters will the balloon have? Round your answer to the nearest tenth. Please include all steps, formula used, and a clear handwriting. Thank you !

Stock iron(II) solution (200Ug mL-1 Fe) ferrous ammonium sulfate hexahydrate mass= 0.1437g, transfer it to a 100 ml beaker. add 15 ml approx of water and 15m1 'approx of dilute sulphuric acid (2M H2SO.). then transfer FeII to 100 ml flask makeup to the mark with water. calculate the moles of ferrous ammonium sulfate hexahydrate solution in unit ug/mL.

Richards and Willard determined the molar mass of lithium and collected the following data.   Experiment Molar Mass, g/mol 1 6.9391 2 6.9407 3 6.9409 4 6.9399 5 6.9407 6 6.9391 7 6.9406   a. Find the mean molar mass determined by these workers. b. Find the median molar mass. c. Assuming that the currently accepted value for the molar mass of lithium is the true value (state your reference), calculate the absolute error and the percent relative error of the mean value determined by Richards and Willard.