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2 years ago

How many moles of oxygen are needed to react completely with 17.2 moles of aluminum

Chemistry

1 answer:

Butoxors [25]2 years ago

4 0

Answer:As you have asked, I will not do your homework for you but will outline the reasoning…

Find out the atomic weight of all the species involved in the problem. Three decimals is more than sufficient.

Look at the periodic table of the elements and other resources (notes!) as necessary to determine the expected valence of the species

Once you know how many of these go with those, you are cruising…

You already know that 4Al+3O2→2Al2O3

So, you are in a great position to determine the number of moles of O2 , as you know you have 14.8 mol of Al and the ratio of combination is always 4 molecules.

Explanation:

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koban [17]

The answer is: the radiant sun.

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3 years ago

The ionic radius of a sodium ion is 2.27 angstroms (A) . What is this length in um

kipiarov [429]

$\boxed{\sf 1Å=10^{-10}m}$

$\\ \rm\longmapsto 2.27Å$

$\\ \rm\longmapsto 2.27\times 10^{-10}m$

$\\ \rm\longmapsto 0.227\times 10^{-9}m$

$\\ \rm\longmapsto 0.0227\times 10^{-8}m$

$\\ \rm\longmapsto 0.00227\times 10^{-7}m$

$\\ \rm\longmapsto 0.00023\times 10^{-6}m$

$\\ \rm\longmapsto 0.00023\mu m$

6 0

3 years ago

Please select the word from the list that best fits the definition

sammy [17]

Pretty sure it’s ,B. Microscope!

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3 years ago

Measure out 2.87 moles of sodium chloride (Nacl) into a clean dry cup.

Anettt [7]

Answer: weigh is m = n × M = 2.87 mol × 58.44 g/mol

Explanation: mass = amount of substance × molar mass

M((NaCl) = 22.99 +35.45

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3 years ago

Name two products that are made using sodium hydroxide.

zepelin [54]

Answer:

Cleaning agents, tissue disgestion

Explanation:

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3 years ago