3 years ago

I need to know the mass of the block of iron

Chemistry

1 answer:

const2013 [10]3 years ago

7 0

800 g

I do believe this is the answer. :D

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Setler [38]

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N2O5 decomposes to form NO2 and O2 with first-order kinetics. The initial concentration of N2O5 is 3.0 M and the reaction runs f

kow [346]

Answer : The final concentration of $N_2O_5$ is, 2.9 M

Explanation :

Expression for rate law for first order kinetics is given by:

$t=\frac{2.303}{k}\log\frac{a}{a-x}$

where,

k = rate constant = $5.89\times 10^{-3}\text{ min}^{-1}$

t = time passed by the sample = 3.5 min

a = initial concentration of the reactant = 3.0 M

a - x = concentration left after decay process = ?

Now put all the given values in above equation, we get

$3.5=\frac{2.303}{5.89\times 10^{-3}}\log\frac{3.0}{a-x}$

$a-x=2.9M$

Thus, the final concentration of $N_2O_5$ is, 2.9 M

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3 years ago

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2 years ago

How many particles are there in 2.8 moles of CO2

Drupady [299]

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3 years ago

A bicycle rider is applying a force of 20 N while heading south against a wind blowing from the south with a force of 5 N

Alenkasestr [34]

Answer:

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