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Effectus [21]
3 years ago
10

Siy-epdv-fwo luna please join​

Chemistry
1 answer:
romanna [79]3 years ago
7 0

is this a cult?im confused

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A sample of nitrogen gas has a volume of 478 cm3 and a pressure of 104.1 kPa. What volume would the gas occupy at 88.2 kPa if th
nadezda [96]

<span>1.    </span>To solve this we assume that the gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant temperature and number of moles of the gas the product of PV is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

P1V1 =P2V2

V2 = P1 x V1 / P2

 V2 = 104.1 x 478 / 88.2

<span> V2 =564.17 cm^3</span>

6 0
3 years ago
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If ine mole of pennies were divided amung 250 million peoplein
Airida [17]

Answer:

2.4088\times 10^{13} dollars each person will receive.

Explanation:

Number of people in which 1 mole of pennies is distributed = 250 million =

1 million = 10^6

250 million = 2.5\times 10^8 persons

Number of pennies in 1 mole = 6.022\times 10^{23}

Pennies per person:

\frac{6.022\times 10^{23} pennies}{2.5\times 10^8 persons}=2.4088\times 10^{15} pennies/person

1 penny = 0.01 $

2.4088\times 10^{15} pennies/person=2.4088\times 10^{15}\times 0.01 \$/person=2.4088\times 10^{13} \$/person

2.4088\times 10^{13} dollars each person will receive.

7 0
3 years ago
How many grams oxygen are present in 76.8g of CO2
katrin [286]
There would be 55.8 g present
8 0
3 years ago
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6.285×10^3 mg = _____? _____ kg
TiliK225 [7]
One kilogram is equal to one thousand grams. Further, one gram is equal to 1000 mg. The conversion is as shown below,
                    (6.285 x 10³ mg) x (1 g / 1000 mg) x (1 kg / 1000 g)
The numerical value of the operation above is 0.006285 kg. 
6 0
3 years ago
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What is the mass, in grams, of a sample of 6.12 × 10^24 atoms of manganese (Mn)? Show your work or explain the steps that you us
e-lub [12.9K]
<span>6.12<span>(<span>1024</span>)</span></span><span>=<span><span>(6.12)</span><span>(<span><span>1e</span>+24</span>)</span></span></span><span>=<span><span>6.12e</span>+24</span></span> <span> = </span>
6 0
3 years ago
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