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Evgen [1.6K]
3 years ago
8

0.65743 In scientific notation

Chemistry
1 answer:
Goryan [66]3 years ago
6 0
202827.0000 is the answer I think idrk
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A compound is 44.7% P and the rest O. Determine its emperical formula.
svet-max [94.6K]

Answer:  

P₅O₁₂

<em>Explanation:  </em>

Assume that you have 100 g of the compound.  

Then you have 44.7 g P and 55.3 g O.  

1. Calculate the <em>moles</em> of each atom  

Moles of P  = 44.7 × 1/30.97 = 1.443 mol Al  

Moles of O = 55.3 × 1/16.00 = 3.456 mol O  

2. Calculate the <em>molar ratios</em>.  

P: 1.443/1.443 =   1  

O: 3.456/1.443 = 2.395

3. Multiply by a number to make the ratio close to an integer

P:  5 × 1         =  5

O: 5 × 2.395 = 11.97

3. Determine the <em>empirical formula </em>

Round off all numbers to the closest integer.  

P:   5

O: 12

The empirical formula is <em>P₅O₁₂</em>.  

6 0
3 years ago
a gas has a volume of 750ml at pressure of 2.15atm what will the pressure be if the volume is 1.25ml​
Dmitry [639]

Answer:

1290 atm

Explanation:

P1V1=P2V2

P2= (P1V1)/V2

P2=(2.15 atm * 750 mL)/(1.25 mL)

P2=1290 atm

6 0
3 years ago
What mass of carbon is present in 0.500 mol of sucrose?
AlexFokin [52]
C12H22O11
12×12×0.5=72
3 0
3 years ago
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Which is not a particle within an atom?
Karolina [17]

Answer:

an ion

Explanation:

An ion is an atom or molecule with a net electric charge due to the loss or gain of one or more electrons. This is not a particle within an atom

6 0
3 years ago
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What happens in the process of gravitational condensation? (one answer pls)
Masja [62]

Answer:

Explanation:

An object decreases in size due to the collision of materials. An object increases in size due to the addition of materials. Gas particles are formed from solar nebula materials.

3 0
3 years ago
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