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Drupady [299]
3 years ago
11

Calculate the percent by mass of each element in

Chemistry
1 answer:
Zepler [3.9K]3 years ago
3 0
The elements present in Ammonium Nitrate are Hydrogen, Nitrogen, and Oxygen at a ratio of 4:2:3, respectively. Hydrogen weighs in at 1.008 amu, Nitrogen at 14.007, and Oxygen at 15.999. This means that the molar mass would be:

Hydrogen
4 x 1.008 = 4.032 amu

Nitrogen
2 x 14.007 = 28.014 amu

Oxygen
3 x 15.999 = 47.997 amu

Total
4.032 + 28.014 + 47.997 = 80.043 amu

The molar mass of Ammonium Nitrate is 80.043 grams per mole.
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Which of these is a unique property of bases?
tatuchka [14]

Answer:

A. Feels slippery

Explanation:

Bases are the only types of compounds that have a slippery feel.

B is <em>wrong</em><em>.</em> Most bases do not contain carbon, but organic compounds always do.

C is <em>wrong</em>. Aqueous solutions of bases conduct electricity, but so do aqueous solutions of salts.

D is <em>wrong</em>. Most bases have a bitter taste. Acids have a sour taste.

7 0
3 years ago
Combustion vapor-air mixtures are flammable over a limited range of concentrations. The minimum volume % of vapor that gives a c
DochEvi [55]
Combustion equation of n-hexane:

2C₆H₁₄ + 19O₂ → 12CO₂ + 14H₂O

a)
Assuming we have 100 moles of air,
Oxygen = 20.9 moles
n-hexane required = 20.9/19 x 2
= 2.2 moles

LFL = Half of stoichometric amount = 2.2 / 2 = 1.1
LFL n-hexane = 1.1% 

b)
1.1 volume percent required for LFL

1.1% x 1
= 0.0011 m³ of n-hexane required
6 0
3 years ago
Read 2 more answers
A block of metal has a volume of 14.0in3 and weighs 5.26lb .
natulia [17]
Mass of block, m = 5.26 lb  
1 lb = 453.592 g
 5.26 lb = 2385.896 g
V = 14 in3
 1 in = 2.5 cm
 1 in3 = 15.625 cm3
 14 in3 = 218.75 cm3


Density = mass/volume
 = 2358.896 / 218.75
 = 10.783 g/cm3
6 0
3 years ago
Read 2 more answers
100 Points! ALSO WILL MARK BRAINLIST IF 100% CORRECT AND HELPFUL !!
Marrrta [24]
<h3><u>Answer</u>;</h3>

= 226 Liters of oxygen

<h3><u>Explanation</u>;</h3>

We use the equation;

LiClO4 (s) → 2O2 (g) + LiCl, to get the moles of oxygen;

Moles of  LiClO4;

(500 g LiClO4) / (106.3916 g LiClO4/mol)

= 4.6996 moles

Moles of oxygen;

But, for every 1 mol LiClO4, two moles of O2 are produced;

= 9.3992 moles of Oxygen

V = nRT / P

= (9.3992 mol) x (8.3144621 L kPa/K mol) x (21 + 273) K / (101.5 kPa)

= 226 L of oxygen

5 0
3 years ago
Which equation agrees with the ideal gas law?
Pavel [41]

The equation for ideal gas law is written as PV = nRT.

<h3>What is Ideal gas law?</h3>

Ideal gas law states that, the volume of a given amount of gas is directly proportional to the number on moles of gas, directly proportional to the temperature and inversely proportional to the pressure.

PV = nRT

where;

  • P is pressure of the gas
  • V is volume of the gas
  • n is number of moles
  • R is ideal gas constant
  • T is temperature

Thus, the equation for ideal gas law is written as PV = nRT.

Learn more about ideal gas law here: brainly.com/question/12873752

#SPJ1

5 0
2 years ago
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