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Alika [10]
2 years ago
6

Liquid nitroglycerin has a density of approximately 1.60 g/mL. The nitroglycerin decomposition reaction equation is:

Chemistry
1 answer:
LekaFEV [45]2 years ago
6 0

Explanation:

Density = 1.60 g/mL

Initial Temperature T1 =  218.0°C + 273 = 491 K (Upon converting to kelvin temperature)

Final Temperature T2 = 750.0°C + 273 = 1023 K (Upon converting to kelvin temperature)

Mass of gas = 1.00 lb = 453.592 g (Upon converting to g)

Final Volume V2 = ?

Initial volume can be obtained from;

Density = Mass / Volume

Volume = Mass / Density

Volume = 453.592 / 1.60 = 283.495 ml

Initial Volume V1 = 283.495 ml

Using charles law;

V1 / T1 = V2 / T2

V2 = V1 * T2 / T1

V2 = 283.495 * 1023 / 491

V2 = 590.66 ml

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A 35.0-ml sample of 0.20 m lioh is titrated with 0.25 m hcl. What is the ph of the solution after 23.0 ml of hcl have been added
kiruha [24]
<h3><u>Answer;</u></h3>

pH = 12.33

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

The equation of reaction is :

LiOH(aq) + HCl(aq) --> LiCl(aq) + H2O(l)

Reactants left after the titrant is added;

Total Moles LiOH;

= 0.035L LiOH × (0.2moles/L)

= 0.007moles of LiOH

Moles of HCl;

= 0.023L HCl × (0.25moles/L)

= 0.00575moles HCl is the limiting reagent

Reacting amount of moles of LiOH;

= 0.0575 moles HCl *(1mole LiOH/1moles HCl)

=0.00575 moles LiOH (reacted)

Moles of LiOH left;

= 0.007moles total - 0.00575moles that react

= .00125 moles of LiOH (left)

LiOH is a strong base, which means that it ionizes completely.  

0.00125moles LiOH *(moles/0.058L) = 0.02155M of LiOH

LiOH(aq) --> Li+(aq) + OH-(aq)

[LiOH] = [OH-] = 0.02155 M

pOH = -log[OH-]

pOH = -log(0.02155)

pOH= 1.67

pH = 14 - pOH

pH = 14 - 1.67

pH = 12.33

7 0
3 years ago
A 0.216 g sample of an aluminium compound X reacts with an excess of water to produce a single hydrocarbon gas. This gas burns c
makkiz [27]
0.216g of aluminium compound X  react with an excess of water water to produce gas. this gas burn completely  in O2  to form H2O and 108cm^3of CO2 only . the volume of CO2 was measured at room temperature and pressure

0.108 / n  =  24 / 1 
n = 0.0045 mole ( CO2 >>0.0045 mole 
0.216 - 0.0045 = 0.2115
so Al =   0.2115 / 27  =>  0.0078 mole 
C = 0.0045 * 1000 => 4.5    and Al  = 0.0078 * 1000 = 7.8 

7 0
2 years ago
URGENT !! A substance has 55.80% carbon, 7.04% Hydrogen, and 37.16% Oxygen. What is it's empirical and molecular formula if it h
Ede4ka [16]
<h3><u>Answer;</u></h3>

Empirical formula = C₂H₃O

Molecular formula = C₁₄H₂₁O₇

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

Empirical formula

Moles of;

Carbon = 55.8 /12 = 4.65 moles

Hydrogen = 7.04/ 1 = 7.04 moles

Oxygen  = 37.16/ 16 = 2.3225 moles

We then get the mole ratio;

4.65/2.3225 = 2.0

7.04/2.3225 = 3.0

2.3225/2.3225 = 1.0

Therefore;

The empirical formula = <u>C₂H₃O</u>

Molecular formula;

(C2H3O)n = 301.35 g

(12 ×2 + 3× 1 + 16×1)n = 301.35

43n = 301.35

  n = 7

Therefore;

Molecular formula = (C2H3O)7

                             <u> = C₁₄H₂₁O₇</u>

6 0
3 years ago
What sort of adaptations are usually passed on to the offspring of an organism
nikdorinn [45]
The sort of adaptations that are usually passed to the offspring of an  organism is the adaptation that helps it survive in its environment. 
3 0
3 years ago
Ammonium sulfate is used as a fertilizer to supply nitrogen to crops. Write the equation for the disassociation of this compound
aksik [14]

Answer:

(NH₄)₂(SO₄)+H₂O⇒(NH₄)₂O+H₂(SO₄)

Explanation:

(NH₄)⁺(SO₄)²⁻+H₂O⇒(NH₄)⁺O²⁻+H₂(SO₄)²⁻

(NH₄)₂(SO₄)+H₂O⇒(NH₄)₂O+H₂(SO₄)

5 0
3 years ago
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