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Angelina_Jolie [31]
3 years ago
10

Suppose your thermometer is off by 1.5 oc i.e. it reads values that are 1.5 oc higher. how would this affect the results in this

experiment? (3 pts)
Chemistry
1 answer:
larisa86 [58]3 years ago
5 0
I assume that the experiment is about calculating the enthalpy of a reaction. 
If you consistently use the thermometer for all procedure in the experiment, the effect will be negligible because all temperature will be increased by 1.5 °C.

In enthalpy calculation, the energy is determined by the temperature differences. If the final and initial temperature increased by 1.5 °C, then the difference will not be changed.
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Do the following problem using significant figures.<br> 4.5 cm x 2000.0 cm x 4 cm =<br> I<br> cm^3
Anon25 [30]

Given :

Measurements 4.5\ cm\times 2000.0\ cm\times 4\ cm .

To Find :

The multiplication using significant figures .

Solution :

We know , the least number of significant figures in any number of the problem determines the number  of significant figures in the answer.

So , significant figure( S.F) in 4.5 cm is 2 .

S.F in 2000.0 cm is 5 .

S.F in 4 cm is 1 .

So , minimum S.F is 1 .

Therefore , S.F of their product is 1 .

Now , multiplying them we will get :

M=4.5\times 2000.0\times 4 \ cm^3\\\\M=36000\ cm^3

Now , converting 36000 in 1 significant digit .

First we will write it in exponential 2 S.F form.

3.6\times 10^4 \ cm^3

Now , to convert 3.6 into 1 S.F we should round off this .

So , round off 3.6 we will get 4 .

Therefore , The multiplication using significant figures is 4\times 10^4\ cm^3 .

Hence , this is the required solution .

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Write a balanced equation to show the reaction of sulfurous acid with lithium hydroxide to form water and lithium sulfite
77julia77 [94]
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True or false ? Someone help me
zlopas [31]

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olya-2409 [2.1K]

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Answer:

No reaction.

Explanation:

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So much heat is generated that the hydrogen explodes:

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