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Elan Coil [88]
3 years ago
14

BRAINLIESTTT ASAP!! PLEASE HELP ME :)

Chemistry
2 answers:
Zarrin [17]3 years ago
6 0

well there is a certain margin error. If you rounded any number you will not get the right measurement. if you round up when multiplying you will get a larger number then the answer really is and Vise versa.

Misha Larkins [42]3 years ago
4 0

Answer:

See below  

Step-by-step explanation:

Measurements

Every measurement must be reported with the correct number of significant figures.

  • A measurement can contain only one uncertain digit.

Calculations

The results calculated from a measurement are at least as uncertain as the measurement itself.

You must follow the correct significant figure rules for

  • addition and subtraction
  • multiplication and division.

You must follow the correct rules for rounding the results of your calculations.

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onvert the value of Kc to a value of Kp for the following reaction: N2(g)+3H2(g)⇌2NH3(g) Kc = 0.50 at 400 °C.
ale4655 [162]

Answer:

K_p= 0.00016

Explanation:

The relation between Kp and Kc is given below:

K_p= K_c\times (RT)^{\Delta n}

Where,  

Kp is the pressure equilibrium constant

Kc is the molar equilibrium constant

R is gas constant

T is the temperature in Kelvins

Δn = (No. of moles of gaseous products)-(No. of moles of gaseous reactants)

For the first equilibrium reaction:

N_2_{(g)}+3H_2_{(g)}\rightleftharpoons2NH_3_{(g)}

Given: Kc = 0.50

Temperature = 400^oC=[400+273]K=673K

R = 0.082057 L atm.mol⁻¹K⁻¹

Δn = (2)-(3+1) = -2

Thus, Kp is:

K_p= 0.50\times (0.082057\times 673)^{-2}

K_p= 0.00016

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3 years ago
Which of the following terms refers to the area immediately around the eye
Anit [1.1K]

Answer:

the eye socket

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the area around the eye is called the eye socket or the eye orbit.

5 0
3 years ago
The atomic number determines the identity of the atom. True or False?
Dominik [7]
THE CORRDCT ANSWER IS TRUE
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An 80.0 g sample of a gas was heated from 25 ∘C to 225 ∘C. During this process, 346 J of work was done by the system and its
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Answer:

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Explanation:

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<em></em>

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6 0
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