3 years ago

What could cause a test tube to crack?

Chemistry

2 answers:

ladessa [460]3 years ago

7 0

Heat they’re not meant to be used with hot chemicals

Molodets [167]3 years ago

5 0

Answer:

heated test tube in cold water

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3 years ago

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Answer : The concentration of SO₂Cl₂ after 720 min will be, $3.81\times 10^{-4}M$

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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 = $2.80\times 10^{-3}\text{ min}^{-1}$

t = time passed by the sample = 720 min

a = initial amount of the reactant = $2.86\times 10^{-3}M$

a - x = amount left after decay process = ?

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

$720=\frac{2.303}{2.80\times 10^{-3}}\log\frac{2.86\times 10^{-3}}{a-x}$

$a-x=3.81\times 10^{-4}M$

Therefore, the concentration of SO₂Cl₂ after 720 min will be, $3.81\times 10^{-4}M$

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3 years ago