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coldgirl [10]
3 years ago
9

Express this number in scientific notation 50000​

Chemistry
2 answers:
posledela3 years ago
7 0

Answer: 5×10^4

Explanation:

scientific notation: a×10^b, where should be 0<a<10

Step 1. Count the zeros

There are in total 4 zeros in 50000, so we write the exponent as 10^4

Step 2. Look at the number left

The number left is 5, which technically should be the [a] in the expression. But first, we need to check whether or not is it in the proper range of [a].

0<5<10, is it true? YES

So the final expression should be 5×10^4

Hope this helps!! :)

Please let me know if you have any question

Kazeer [188]3 years ago
6 0

Answer:

We write 50,000 in scientific notation,

it is written as 5 x 10⁴.

Hope it helps.

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Answer:

The vapor pressure of benzaldehyde at 61.5 °C is 70691.73 torr.

Explanation:

  • To solve this problem, we use Clausius Clapeyron equation: ln(P₁/P₂) = (ΔHvap / R) (1/T₁ - 1/T₂).
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  • The second case: P₂ = <em>??? needed to be calculated</em> and T₂ = 61.5 °C = 334.5 K.
  • ΔHvap = 48.8 KJ/mole = 48.8 x 10³ J/mole and R = 8.314 J/mole.K.
  • Now, ln(P₁/P₂) = (ΔHvap / R) (1/T₁ - 1/T₂)
  • ln(760 torr /P₂) = (48.8 x 10³ J/mole / 8.314 J/mole.K) (1/451 K - 1/334.5 K)
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So, The vapor pressure of benzaldehyde at 61.5 °C is 70691.73 torr.

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