Which number is equal to -906,060?

Chemistry

2 answers:

Eva8 [605]2 years ago

7 0

Answer:

it would be c

Explanation:

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Lyrx [107]2 years ago

5 0

Answer: The given number is equal to $-9.0606\times 10^{5}$

Explanation:

Scientific notation is defined as the notation in which a number is expressed in the decimal form. This means that the number is always written in the power of 10 form. The numerical digit lies between 0.1.... to 9.9.....

If the decimal is shifting to right side, the power of 10 is negative and if the decimal is shifting to left side, the power of 10 is positive.

We are given:

A quantity having a value of -906,060

Converting this into scientific notation, we get:

$\Rightarrow -906,060=-9.0606\times 10^{5}$

As, the decimal point is shifting to left side, thus the power of 10 is positive.

Hence, the given number is equal to $-9.0606\times 10^{5}$

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What pressure (in atm) would be exerted by 76 g of fluorine gas (f2) in a 1.50 liter vessel at -37oc? (a) 26 atm(b) 4.1 atm(c) 1

nirvana33 [79]

Let's assume that the F₂ gas has ideal gas behavior.

Then we can use ideal gas formula,
PV = nRT

Where, P is the pressure of the gas (Pa), V is the volume of the gas (m³), n is the number of moles of gas (mol), R is the universal gas constant ( 8.314 J mol⁻¹ K⁻¹) and T is temperature in Kelvin.

Moles = mass / molar mass

Molar mass of F₂ = 38 g/mol

Mass of F₂ = 76 g

Hence, moles of F₂ = 76 g / 38 g/mol = 2 mol

P = ?
V = 1.5 L = 1.5 x 10⁻³ m³

n = 2 mol

R = 8.314 J mol⁻¹ K⁻¹
T = -37 °C = 236 K

By substitution,

P x 1.5 x 10⁻³ m³ = 2 mol x 8.314 J mol⁻¹ K⁻¹ x 236 K

p = 2616138.67 Pa

p = 25.8 atm = 26 atm

Hence, the pressure of the gas is 26 atm.

Answer is "a".