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Artemon [7]
3 years ago
12

10.

Chemistry
1 answer:
kondor19780726 [428]3 years ago
5 0

Answer:

A.  

Explanation:

The leading zeros in c, d, and e are not significant.  There is no zero in b.  Just one left and all it's zeros are significant.

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The rate of a chemical reaction may be defined as Select one: a. the time it takes for the reaction to be completed b. the chang
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An atom of aluminum has 13 protons and 14 neutrons. what is the atomic mass
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2 years ago
The solubility of potassium sulfate in water is 16 grams per 100
kicyunya [14]

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7 0
2 years ago
The volume of a sample gas, initially at 25 C and 158 mL, increased to 450 mL. What is the final temperature of the sample of ga
Rashid [163]

Answer:

Final temperature of the gas is  576 ^{0}\textrm{C}.

Explanation:

As the amount of gas and pressure of the gas remains constant therefore in accordance with Charles's law:

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

where V_{1} and V_{2} are volume of gas at T_{1} and T_{2} temperature (in kelvin scale) respectively.

Here V_{1}=158mL , T_{1}=(273+25)K=298K and V_{2}=450mL

So  T_{2}=\frac{V_{2}T_{1}}{V_{1}}=\frac{(450mL)\times (298K)}{(158mL)}=849K 

849 K = (849-273) ^{0}\textrm{C} = 576 ^{0}\textrm{C}

So final temperature of the gas is  576 ^{0}\textrm{C}.

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3 years ago
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