Gadget News

I know that to calculate the mole of electrons you multiply the number of moles x by atomic number. However since it is O2 instead of just O do i multiply by twice the atomic number?

Content by Angel Ponsel

What is the chemical formula for the compound composed of Li+ and O2- ions? Use the rules of formula entry given by OWL.

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Hi Guys,

Does anyone know how long the Thames Clipper service takes from Waterloo Pier to the O2?

Thanks!

Content by Angel Ponsel

I unlocked my iphone but found out that you couldnt use the internet anywhere you go so i would like to go on the O2 contract an then get it. If i restore it will i be able to go on the contract then? Also if i click restore it says would you like to restore and download new iphone software, should i do this? Please help asap. thanks.

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Gases are sold in large cylinders for laboratory use. What pressure, in atmospheres, will be exerted by 2,500g of oxygen gas (O2) when stored at 22°C in a 40.0 L?

Thanks in advance to anyone that answers.

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Ethyl alcohol, C2H6O, can be added to gasoline to product “gasohol”, a fuel for automobile engines. The equation for the combustion of ethyl alcohol is C2H6O1 + 3O2 ->2CO2 +3H2O. How many grams of O2 are required for the combustion of 421 grams of C2H6O? The answer is 879G of O2… How do I get there?

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so, I’m just wondering like how many percent of o2 is actually converted to co2 during humans regular respiration. Is it mostly converted or just partially.

Content by Book Store

Given the balanced equation representing a reaction:
4NH3 + 5O2 → 4NO + 6H2O
What is the minimum number of moles of O2 that are needed to completely react with 16 moles of NH3?

1. 16 mol
2. 20. mol
3. 64 mol
4. 80. mol

Content by Angel Ponsel

How does salicylate-induced hyperventilation lead to increase values of O2 and decrease values of CO2 in an aspirin overdosed patient?

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How many moles of O2 are required for the complete reaction of 45 g of C2H4 to form CO2 and H2O?

a) 1.3 x 10^2 mol
b) 0.64 mol
c) 112.5 mol
d) 4.8 mol
e) none of these

Thanks!

Content by Alvisa Rizky

If 0.200L of O2 at 725 mmHg is heated from 300K to 350K, and pressure is increased to 7250 mmHg, what is the resulting volume?

Content by Angel Ponsel

I want to take a very large, drawn out bong hit (+20 seconds), and I was wondering whether or not O2 would help directly before smoking.
EDIT: i would be smoking out of a pipe. there would be nothing on fire at the time i did this.

Content by Alvisa Rizky

I have an o2 simplicity deal, like a very cheap contract that provides some minutes and a few hundred texts uk to uk, but i am wondering, exact or approximate, how much it would cost to call an american mobile or landline from my mobile. (Or even from a bt home phone)
Thanks!!

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What volume of O2 (m3) is needed for the complete combustion of 127 g of CH4 at 25.0oC and 100.0 kPa?

Content by Alvisa Rizky

Here is the equation: 2 KClO3 (s) —-> KCl (s) + 3 O2 (g)

I know the answer is 2.00 but do not know how to get to that answer. Please provide an explanation of the steps to take to get the answer.

Content by Angel Ponsel