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Katarina [22]
3 years ago
6

At constant temperature and pressure, the coefficients for gaseous species in a valences chemical reaction can be interpreted as

? 1) grams 2) pressure 3) volume 4) atoms
Chemistry
1 answer:
xenn [34]3 years ago
7 0
At constant temperature 1246 I need points
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d) 2792.8 J

Explanation:

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3 years ago
Which condition will decrease the rate of reaction between excess magnesium and hydrochloric acid?
tekilochka [14]

Answer:

B

Explanation:

The four factors that increase the rate of the reaction:

1.Concentration of the reactants

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4 0
3 years ago
Elemental analysis of the unknown gas from part a revealed that it is 30.45% n and 69.55% o. what is the molecular formula for t
Gnesinka [82]

Assuming we have 100 g of sample

30.45/MW of N 14g = 2.175

69.55/MW of O 16g = 4.34

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6 0
3 years ago
How many moles of O, will occupy 1.00 L at a temper-
Kay [80]

Moles of O₂ = 3.92

<h3>Further explanation</h3>

Given

V=1 L

T=-118 °C + 273 = 155 K

P = 49.77 atm

Required

moles of O₂

Solution

the gas equation can be written  

\large {\boxed {\bold {PV = nRT}}}

where  

P = pressure, atm  

V = volume, liter  

n = number of moles  

R = gas constant = 0.08206 L.atm / mol K  

T = temperature, Kelvin  

Input the value :

n= PV/RT

\tt n=\dfrac{49.77~atm\times 1~L}{0.082\times 155}=3.92~moles

7 0
3 years ago
Which macro-molecule is considered an amino acid?
Alex
The answer is proteins
6 0
3 years ago
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