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実験のやり方を変えてみたんです。今度はきっと成功するはずです。期待していてください。

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実験のやり方を変えてみたんです。だから、こんなにいい結果が出たわけです

Can someone explain what the difference between these two sentences above is? Mainly the difference between はず and わけ.

They both mean the same thing to me, the experiment was changed so the output should be a success.

What gives?

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今度はきっと成功するはずです means It should be successful this time.

今度 means this time, きっと is an adverb indicating certainty, 成功する is a suru verb that means to succeed and はず, a noun, which can appear at the end of a sentence followed by だ or です to mean 'to be supposed to (do)'. It is used when the speaker draws a conclusion from preexisting understandings.

だから、こんなにいい結果が出たわけです means In this way, I got a good outcome.

だから is a conjunction indicating consequence, こんなに is an adverb meaning in this way, いい is an adjective meaning good, 結果 is a noun meaning result, 出た is the past form of 出る that, in this case, means to get. Finally, わけ is a noun that means reason. This noun can be followed by だ or です at the end of a sentence to mean 'that's why' and it can follow:

  • Adjectives and verbs in the dictionary or ta-form.
  • Adjectival nouns or nouns + na/no or datta

In this case it follows 出た.


As for 実験のやり方を変えてみたんです, which means I changed the way I experimented, you may consult:

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  • I wonder if the poster is trying to get at the diffences between: 実験のやり方を変えてみたんです。今度はきっと成功するはずです。 And 実験のやり方を変えてみたんです。今度はきっと成功するわけです。 Sep 16 at 7:49
  • I specifically said in my post: Mainly the difference between はず and わけ. YES I mean the difference between the 2 sentences, thank you.
    – fynxgloire
    Sep 16 at 16:35

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