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Wittaler [7]
3 years ago
10

How much heat is liberated when 40 gram H, gas react with excess O2 gas

Chemistry
1 answer:
Pavel [41]3 years ago
8 0

Answer:wqqqqqqqqqqqqqqgqr

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Explanation:

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How many grams of diphosphorus trioxide are required to produce 10.2 moles of phosphorus acid
scoundrel [369]

Hey don't know if you still need the answer but its 561g.

8 0
4 years ago
If 2.45 g of iron are placed in 1,5 L of 0.25M HCl, how many grams of FeCl2 are obtained? Identify the limiting and excess react
lys-0071 [83]

Answer:

m_{FeCl_2}=0.652gFeCl_2

Explanation:

Hello there!

In this case, according to the given information and the chemical reaction, whereby iron and hydrochloric acid react in a 1:2 mole ratio, it is firstly necessary to calculate the moles of iron (II) chloride from each reactant in order to figure out the limiting reactant:

n_{FeCl_2}=2.45gFe*\frac{1molFe}{55.845gFe}*\frac{1molFeCl_2}{1molFe}=0.0439molFeCl_2\\\\  n_{FeCl_2}=1.5L*0.25\frac{molHCl}{L} *\frac{1molHCl}{36.46gHCl}*\frac{1molFeCl_2}{2molHCl}=0.00514molFeCl_2

In such a way, we infer the maximum moles of FeCl2 product are yielded by HCl, for which it is the limiting reactant. Finally, we calculate the grams of product by using its molar mass as shown below:

m_{FeCl_2}=0.00514molFeCl_2*\frac{126.75gFeCl_2}{1molFeCl_2} \\\\m_{FeCl_2}=0.652gFeCl_2

Regards!

7 0
3 years ago
Is acid rain exothermic or endothermic?
trasher [3.6K]

Answer:

in the presence of water, a strong acid will dissociate quickly and release heat, so it is an exothermic reaction.

Explanation:

7 0
3 years ago
What are the graduations on the ruler?
avanturin [10]
I have no idea look it up
7 0
3 years ago
Balance the following equation: *<br><br><br>1, 1, 1<br><br>1, 3, 1<br><br>2, 3, 2<br><br>1, 3, 2
alexira [117]
1,3,2

The coefficient multiplied by the subscript will give you how many atoms of the element there are.

So, if we plug in 1,3,2
There will be 2 Nitrogen and 6 Hydrogen in the reactants side of the equation. To balance this on the other side, we must put a 2 in order to get 2 Nitrogen and 6 Hydrogen again.
6 0
3 years ago
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