BaOH2+HNO3<br> BaOH2+H2SO4<br> BaOH2+H3PO4<br> BaOH2+CO2<br> BaOH2+N2O5

What is the relationship between a scientific theory and a scientific law

grigory [225]

A scientific theory focuses on explaining a phenomenon, while a law will have a generalised statement about said phenomenon. Often times, we use laws to help us develop theories. =)

5 0

3 years ago

A fuel gas containing 86% methane, 8% ethane, and 6% propane by volume flows to a furnace at a rate of 1450 m3/h at 15°C and 150

Svetach [21]

Answer:

Basis: Hour

From the question, we will have the following reactions;

CH4 + 2O2 -------- CO2 + 2H20 (Methane with O2)

C2H6 + 3.5O2 -------- 2CO2 + 2H2O (Butane with O2)

C3H8 + 5O2 ---------- 2CO2 + 4H2O (Propane with O2)

But we are also given this,

R=8.314J/mol.K, V=1450m3/h, P=150kPa gauge, Pt=150+101kPa=251kPa, T=15C= 288K

Assuming they are all ideal gases, we can find the no of moles of the gases.

n=PV/RT,

n = 251x103 x 1450 /8.314 x 288

n = 151, 999mols = 152kmols

However from the input and complete reactions stoichiometries above, we will have,

1. Methane 86% = 0.86 x 152kmols = 130kmols, required O2 = 2 x 130.7 = 261.44kmols

2. Ethane 8% = 0.08 x 152kmols = 12.2kmols, required O2 = 3.5 x 12.2 = 42.56kmols

3. Propane 6% = 0.06 x 152 kmols = 9.2kmols, required O2 = 5 x 9.1 = 45.5kmols

O2 = 349.5kmols, with 8% excess, Total O2 = 349.5+ (0.08x349.5) = 377.46kmols

But Air:O2 = 21%: 100%

inflow Air = 377.46x 100/21= 1797.5kmols, at standard pressure and temperature.

From PV =nRT

V (M3/H) = nRT/P

===== 1797.5mol x 8.314Nm/mol.K x 273K/101325Nm-2 x 1000

Hence, the required flow rate of air in SCMH = 40,265m³/h

3 0

3 years ago

How many bonding electrons are in the lewis structure of carbon monoxide, co?

arsen [322]

There are six (6) bonding electrons are in the lewis structure of carbon monoxide (CO).
In Lewis structure, there are ten (10) valence electrons of Carbon monoxide (CO). For lewis structure we need a triple bond between carbon and oxygen, so when electrons made a triple bond it means there is six bonding electrons in lewis structure of carbon monoxide.

6 0

3 years ago

Read 2 more answers

1. empirical formula for Cu2o4?

Wittaler [7]

We know that

1) empirical formula of a compound is the representation of a molecules with the elements in simplest mole ratio.

2) the molar mass is the actual proportion of moles of elements present in a molecule

3) there is a simple ratio between the molar mass and empirical mass a molecule

Now let us solve each problem

1) empirical formula of $Cu_{2}O_{4}$ will be $CuO_{2}$

2) empirical formula of $Zn_{3}(NO_{3})_{4}$ will be $Zn_{3}(NO_{3})_{4}$

3) empirical formula of $Ti_{2}S_{2.5}$ will be $Ti_{4}S_{5}$

4) the molecular formula will be :

$Ratio=\frac{molarmass}{empiricalformula}=\frac{112.04}{28.01}=4$

the molecular formula = 4 X empirical formula = 4 X CO = $C_{4}O_{4}$

5) the mole ratio of Cl and Cr is $\frac{1.90}{0.631}=3$

empirical formula will be $CrCl_{3}$

6 0

3 years ago

What are the component of black powder and why are they needed to cause an explosion

melisa1 [442]

Hi There!

Black powder is an explosive powder consisting of saltpeter, sulfur, and charcoal, used chiefly in old guns fired for sport, in fireworks, and for spotting charges in practice bombs; black gunpowder.

In addition to being easily ignited by friction and impact, black powder is also extremely sensitive to flame and spark. It ignites violently when unconstrained and explodes when lit in even the slightest amount of confinement.

Thank you,
Eddie

6 0

2 years ago

BaOH2+HNO3 BaOH2+H2SO4 BaOH2+H3PO4 BaOH2+CO2 BaOH2+N2O5