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Pavel [41]
3 years ago
6

Did anyone in k12 do the precious cargo lab? i need help

Chemistry
1 answer:
Montano1993 [528]3 years ago
6 0
No but i am glad i havent

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A gas at 400 k is placed in a 4.0 l moveable piston. The gas is cooled to 252 k. What is the new volume of the piston?
katrin [286]

Answer:

2.52L

       

Explanation:

Given parameters:

T₁  = 400K

V₁  = 4L

T₂ = 252K

unknown

V₂ = ?

Solution:

To solve this problem, we are going to apply charle's law. The law states that the volume of a fixed mass of gas is directly proportional to temperature provided pressure is constant.

Mathematically,

               \frac{V_{1} }{T_{1} }  = \frac{V_{2} }{T_{2} }

Substitute and solve for V₂

           \frac{4}{400}  = \frac{V_{2} }{252}

        V₂ = 2.52L

         

6 0
3 years ago
A carbon molecule that has a different arrangement of atoms is known as a/an
maw [93]
The correct response I believe is A. Isomer. If a carbon molecule possess more than one arrangement of how its atoms can be arranged, those other arrangements are known as isomers.
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If you need to measure the mass of a greeting card you are sending to a friend through the mail, what unit of measurement would
erica [24]
You would use grams to measure ot
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A- is a weak base. which equilibrium corresponds to the equilibrium constant ka for ha?
vekshin1

Answer:

K_a=\frac{[H^+][A^-]}{[HA]}

Explanation:

ka is defined as the dissociation constant of an acid. It is defined as the ratio of concentration of products to the concentration of reactants.

For the dissociation of weak acid, the chemical equation follows:

HA\rightleftharpoons H^++A^-

The equilibrium constant is defined by the equilibrium concentration of products over reactants:

K_a=\frac{[H^+][A^-]}{[HA]}

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Bonds between two atoms that are equally electronegative are _____. bonds between two atoms that are equally electronegative are
DanielleElmas [232]
Bonds between two atoms that are equally electronegative are nonpolar covalent bonds
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3 years ago
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