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Elenna [48]
4 years ago
11

I need the measurements to the appropriate amount of significant figures on this pleasee

Chemistry
1 answer:
klio [65]4 years ago
3 0

Answer:

the blue paper, 10.9

Explanation:

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A gas-forming reaction produces 1.15 m 3 of gas against a constant pressure of 102.0 kPa. Calculate the work done by the gas in
Aleonysh [2.5K]

Answer:

The work done by the gas is 117,300 Joules.

Explanation:

Pressure applied on the gas , P= 102.0 kPa = 102000 Pa ( 1kPa = 1000 Pa

Change in volume of the gas ,ΔV= 1.15 m^3

Here the work is done by system so, the value of work done will be negative.

W=-P\Delta V

=W=-102000 Pa\times 1.15 m^3=117,300 J

The work done by the gas is 117,300 Joules.

8 0
4 years ago
How many moles are present 560.0 g of iron (lll) sulfate
xxMikexx [17]

Answer:

1.400 mol

Explanation:

To convert grams to moles, you will need the molar mass.  The molar mass of iron(iii) sulfate is 399.88 g/mol.  Divide grams by the molar mass to find moles.

(560.0 g)/(399.88 g/mol) = 1.400 mol

There are 1.400 mol present in 560.0 g of iron(iii) sulfate.

3 0
4 years ago
Perform the following mathematical operations and express the correct answer to the proper number of significant figures or deci
nordsb [41]

Answer: 7.71 + 4.31 + 1.7 + 4.00141= 17.72141

7.71 x 4.31 x 1.7 x 4.00141=  226.04433255

Explanation:

(i) 7.71 + 4.31 + 1.7 + 4.00141

= 7.71000+4.31000+1.70000+ 4.00141   [make like decimals]

= 17.72141    [By adding the corresponding places ]

(ii)  7.71 x 4.31 x 1.7 x 4.00141 =( 7.71 x 4.31) x 1.7 x 4.00141

= 33.2301 x 1.7 x 4.00141

= (33.2301 x 1.7) x 4.00141

=  56.49117 x 4.00141

= ( 56.49117 x 4.00141 )

=  226.04433255

Hence,  7.71 + 4.31 + 1.7 + 4.00141= 17.72141

7.71 x 4.31 x 1.7 x 4.00141=  226.04433255

7 0
3 years ago
As you can see, there are numerous volcanic mountains in the Pacific Northwest. What is the most likely cause of the volcanic an
yKpoI14uk [10]
D. collision of tectonic plates
3 0
3 years ago
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Are all elements abbreviated with one or two letters? If not, name some that aren't.
mixas84 [53]
Some elements that are not abbreviated with one or two letters on the periodic table are Ununoctium (Uuo) and Ununtrium (Uut).
7 0
4 years ago
Read 2 more answers
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