karlylebrewer
karlylebrewer karlylebrewer
  • 20-05-2016
  • Chemistry
contestada

2Na + 2H2O mc012-1.jpg 2NaOH+H2, what mass of Na is required to yield 22.4 L of H2 at STP? (The atomic mass of Na is 22.99 u.)

Respuesta :

jacob772
jacob772 jacob772
  • 23-05-2016
46.0g Na

Since 22.4L of anything at STP is one mole, you can use your mole fraction to easily determine the # of moles of Na to produce one mole of H2. In this case, 2 moles of Na yield 1 mole H2, so all you need to do now is convert to grams. (Moles x Molar mass) which is 2 moles Na X 23g . this gives you the answer of 46g of Na.
Answer Link

Otras preguntas

Not sure if i already asked this one! Math help please :)
please help me with this math
how does a silkworm makes silk? Summary about it
Santiago is building a skateboarding ramp by propping the end of a piece of wood on a cinder block. If the ramp begins 63 centimeters from the block and the blo
what is the area in square inches of the trapezoid below. ​
6.5.5 The sum of two numbers is 22. When the second number is subtracted from the first number, the difference is 16. Find the two numbers. What are the two num
What are the causes of air pollution in the environment? Explain.
Identify the volume of the hemisphere in terms of π. HELP ME PLEASE!!! THE RED IS THE ONE I GOT WRONG!
PLEASE HELP REAL ANSWER NO FILE. Part A Electricity generated from any source comes with its own advantages and disadvantages. So, no source of energy for gener
(NEED HELP ASAP) BRAINLIEST NO FAKE ANSWERS 1.A scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relatio