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3 years ago

Draw the lewis dot structure of C4H8N2O3

Chemistry

1 answer:

Mrac [35]3 years ago

7 0

Explanation:

Refer to the attachment

Extrashots:-

C4H8N2O3 is called asparagine .

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What is the correct formula for iron (ii) bromide?

neonofarm [45]

The formula for iron bromide is FeBr^2 (one iron and 2 bromines)

3 0

3 years ago

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0.0625 mol of an ideal gas is contained within a 1.0000 Lvolume container. Its pressure is 142,868 Pa and temperature is X K . W

aliya0001 [1]

Answer: The temperature of the ideal gas is $2.75\times 10^2K$

Explanation:

To calculate the temperature, we use the equation given by ideal gas equation:

$PV=nRT$

where,

P = Pressure of the gas = 142,868 Pa = 142.868 kPa (Conversion factor: 1 kPa = 1000 Pa)

V = Volume of gas = 1.0000 L

n = number of moles of ideal gas = 0.0625 moles

R = Gas constant = $8.31\text{L kPa }mol^{-1}K^{-1}$

T = temperature of the gas = ?

Putting values in above equation, we get:

$142.868kPa\times 1.0000=0.0625mol\times 8.31\text{L kPa }mol^{-1}K^{-1}\times T\\\\T=275K=2.75\times 10^2K$

Hence, the temperature of the ideal gas is $2.75\times 10^2K$

8 0

4 years ago

What is the numerical value of Kc for the following reaction if the equilibrium mixture contains 0.51 M

Goryan [66]

The numerical value of Kc is 1.129 x10^4

Explanation

C3H6O +4O2→ 3 CO2 + 3H2O

KC is the ratio of concentration of the product over the reactant.

Each concentration of product and reactant are raised to the power of its coefficient.

Therefore the KC expression of equation above is

Kc=[ (Co2)^3 (H2O)^3] / [(C3H6O) (O2)^4)]

Kc =[(1.8^3) x (2.0^3)] / [(0.51) x (0.30^4)] =1.129 x10^4

3 0

3 years ago

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Iron crystallizes in a body-centered cubic unit cell. The edge length of this cell is 287 pm. Calculate the density of iron in g

Jlenok [28]

Answer:

Density = 7.87 grams per mL

Explanation:

Density is given by the formula:

$d=\frac{Z\times M}{a^{3}\times N_a}$

where

Z = effective number of atoms in one unit cell.

M = Molecular mass of the substance

a = edge length of unit cell

Na = Avogadro number = 6.022×10²³

In this case:

Z=2 as it is body-centered type unit cell

M = 56 g per mole for iron

a = 287 pm = $287\times10^{-10}\ cm$

Substituting the above values in the density formula we get:

$d=\frac{2\times56}{(287\times10^{-10})^{3}\times6.022\times10^{23}}=7.87\ g\ per\ ml$

Density of iron is 7.87 grams per mL.

7 0

3 years ago

The work function of an element is the energy required to remove an electron from the surface of the solid element. The work fun

Anton [14]

Explanation:

The given data is as follows.

Energy needed for 1 mole = 279.7 kJ = $279.7 \times \frac{1000 J}{1 kJ}$

= 279700 J

Therefore, energy required for 1 atom will be calculated as follows.

$\frac{279700}{6.022 \times 10^{22}}$

= $4.645 \times 10^{-19} J$

As relation between energy and wavelength is as follows.

E = $\frac{hc}{\lambda}$

where, h = planck constant = $6.62 \times 10^{-34} Js$

c = speed of light = $3 \times 10^{8} m/s$

$\lambda$ = wavelength

Therefore, putting given values into the above formula as follows.

E = $\frac{hc}{\lambda}$

$4.645 \times 10^{-19} J$ = $\frac{6.62 \times 10^{-34} Js \times 3 \times 10^{8} m/s}{\lambda}$

$\lambda$ = $4.28 \times 10^{-7} m$

or, = $428 \times 10{-9}$ m

= 428 nm

Thus, we can conclude that the maximum wavelength of light that can remove an electron from an atom on the surface of lithium metal is 428 nm.

4 0

3 years ago