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Tatiana [17]
3 years ago
8

The coenzyme involved in a transaminase reaction is: A. biotin phosphate. B. lipoic acid. C. nicotinamide adenine dinucleotide p

hosphate (NADP+ ). D. pyridoxal phosphate (PLP). E. thiamine pyrophosphate (TPP).
Chemistry
1 answer:
PSYCHO15rus [73]3 years ago
4 0

Answer:

D. pyridoxal phosphate (PLP).

Explanation:

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A sample of nitrogen gas occupies a volume of 2.55 L when it is at 755 mm Hg and 23 degrees Celsius. Use this information to det
ivolga24 [154]

<u>Answer:</u> The number of moles of nitrogen gas are 0.1043 moles and the pressure when volume and temperature has changed is 461.6 mmHg

<u>Explanation:</u>

To calculate the amount of nitrogen gas, we use the equation given by ideal gas which follows:

PV=nRT

where,

P = pressure of the gas = 755 mmHg

V = Volume of the gas = 2.55 L

T = Temperature of the gas = 23^oC=[23+273]K=296K

R = Gas constant = 62.364\text{ L.mmHg }mol^{-1}K^{-1}

n = number of moles of nitrogen gas = ?

Putting values in above equation, we get:

755mmHg\times 2.55L=n\times 62.364\text{ L.mmHg }mol^{-1}K^{-1}\times 296K\\\\n=\frac{755\times 2.55}{62.364\times 296}=0.1043mol

To calculate the pressure when temperature and volume has changed, we use the equation given by combined gas law.

The equation follows:

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1,V_1\text{ and }T_1 are the initial pressure, volume and temperature of the gas

P_2,V_2\text{ and }T_2 are the final pressure, volume and temperature of the gas

We are given:

P_1=755mmHg\\V_1=2.55mL\\T_1=23^oC=[23+273]K=296K\\P_2=?\\V_2=4.10L\\T_2=18^oC=[18+273]K=291K

Putting values in above equation, we get:

\frac{755mmHg\times 2.55L}{296K}=\frac{P_2\times 4.10L}{291K}\\\\P_2=\frac{755\times 2.55\times 291}{4.10\times 296}=461.6mmHg

Hence, the number of moles of nitrogen gas are 0.1043 moles and the pressure when volume and temperature has changed is 461.6 mmHg

6 0
3 years ago
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How many significant figures does .150, 20.20, and 25.00 have?
viva [34]
.150 = 3
20.20 = 4
25.00 = 4
If a 0 does not have a number or a period after it, it is not significant.
If the 0 is behind the decimal point, it is always significant.
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3 years ago
How is Earth’s outer layer different from a cracked hard-boiled egg?
Mekhanik [1.2K]
The Earth holds livings things and even the layer has more complex layers in it (Also it's not white) And of course there are no oceans
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In what form metals are found in nature
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Metals in nature are found in rock form, mineral forms etc..

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What are the three types of mixtures?
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Suspension mixture,colloidal mixture or solution
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