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4 years ago

PLEASE HELP IF YOU CAN

Chemistry

1 answer:

Kruka [31]4 years ago

7 0

I'm not sure but for those who can help:

<u>Skeleton equation</u>: It's neutralization because acid+base.

HCl + NaOH => H2O + NaCl

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Sulfuric acid is essential to dozens of important industries from steelmaking to plastics and pharmaceuticals. More sulfuric aci

Pavlova-9 [17]

Given:

K = 0.71 = Kp

The reaction of sulphur with oxygen is

S(s) + O2(g) ---> SO2(g)

initial Pressure 6.90 0

Change -x +x

Equilibrium 6.90-x x

Kp = pSO2 / pO2 = 0.71 = x / (6.90-x)

4.899 - 0.71x = x

4.899 = 1.71x

x = 2.86 atm = pressure of SO2 formed

temperature = 950 C = 950 + 273.15 K = 1223.15 K

Volume = 50 L

Let us calculate moles of SO2 formed using ideal gas equation as

PV = nRT

R = gas constant = 0.0821 L atm / mol K

putting other values

n = PV / RT = 2.86 X 50 / 1223.15 X 0.0821 = 1.42 moles

Moles of Sulphur required = 1.42 moles

Mass of sulphur required or consumed = moles X atomic mass of sulphur

mass of S = 1.42 X 32 = 45.57 grams or 0.04557 Kg of sulphur

6 0

3 years ago

A wave is moving towards shore with a velocity of 5.0 MS if it’s frequency is 2.5 Herz what is the wave length

EastWind [94]

Answer:

Explanation:

The wavelength of a wave can be found by using the formula

$\lambda = \frac{c}{f} \\$

where

c is the speed of the wave

f is the frequency

From the question

c = 5 m/s

f = 2.5 Hz

We have

$\lambda = \frac{5}{2.5} = 2 \\$

We have the final answer as

Hope this helps you

8 0

3 years ago

High levels of cholesterol can first lead directly to __________.

Marta_Voda [28]

B) arteriosclerosis

6 0

3 years ago

Read 2 more answers

A pelican is born with a larger bill than other pelicans of the same species. When this pelican

Darya [45]

Answer:

natural selection

Explanation:

it is a biological selection of genes, whether dominant or negative.

8 0

3 years ago

Which statement about oxidation and reduction in a voltaic cell is true? A. Both oxidation and reduction occur at the anode. B.

Anettt [7]

Answer:

C. Oxidation occurs at the anode and reduction occurs at the cathode.

Choice number third is the correct option for the given question

Explanation:

Copper and silver nitrate are the two components that form a voltaic cell. These are the two main ingredients which make the Redox reaction possible. The dog reaction that is taking place result in development of charge.

Since copper here is the anode in the reaction oxidation happens here by the solution $AgNO_3$ is cathode this is where reduction takes place.

6 0

3 years ago

PLEASE HELP IF YOU CAN​

PLEASE HELP IF YOU CAN