3 years ago

Please help me on this if you dont mind

Chemistry

1 answer:

Annette [7]3 years ago

4 0

Answer:

Explanation:

The person is combining steel using a method which melts steel together

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Would 0.12g/cm^3 float in water?

Leno4ka [110]

Yes that would float in water

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3 years ago

0.000431 L<br><br> Express your answer as an integer.

Molodets [167]

A whole number, not a fraction, that can be negative, positive or zero are integers. They cannot have decimal places.

Now, converting 0.000431 L to decimal an integer as:

$0.000431 L = 431\times 10^{-6} L$

Since, $1 L = 10^{6} \mu L$

So, $431\times 10^{-6} L\times \frac{10^{6 \mu L}}{1 L} = 431 \mu L$ .

Hence, the integer value for 0.000431 L is $431 \mu L[$ .

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3 years ago

The absorbance of an equilibrium mixture containing FeSCN2 was measured at 447 nm and found to be 0.347. What is the equilibrium

Ksenya-84 [330]

Answer:

The concentration is $C = 1.11 mol/L$

Explanation:

From the question we are told that

The absorbance is $A = 0.347$

The length is $l = 447 nm = 447 *10^{-7} \ cm$

Generally absorbance is mathematically represented as

$A = \epsilon* C * l$

where $\epsilon$ is the molar absorptivity of FeSCN2 with a value $\epsilon = 7.0*10^3 L/cm/mol$

and $C$ is the equilibrium concentration of FeSCN2

$C = \frac{A}{\epsilon * l }$

substituting values

$C = \frac{0.347}{7.0*10^{3} * 447 *10^{-7} }$

$C = 1.11 mol/L$

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3 years ago

Which equation agrees with ideal gas law?

Julli [10]

Https://www.gstatic.com/education/formulas2/355397047/en/boyle_s_law.svg

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3 years ago

I need help asap!!!!!!!!

maksim [4K]

Answer:

Explanation:

add 22 with the answers like A, 33+22=55

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2 years ago