How quickly will I receive my key after purchase?

Most keys are delivered instantly by sellers after payment confirmation. You will receive the key by email or directly on the website.

Can I return or exchange a key if it doesn’t work?

Usually yes, key sellers provide a guarantee on all keys. In case of activation issues, contact the seller’s chat for assistance.

Are keys supported for different platforms — Steam, Xbox, PlayStation, and others?

Yes, on Irongamers you will find keys and accounts for most popular platforms, including Steam, EA Play, Uplay, Xbox, Twitch, and Epic Games.

Can I get discounts and bonuses for referrals?

Usually yes, sellers can give personal discounts on new games and keys.

What payment methods are available?

We support various payment methods: bank cards, e-wallets, SBP, and other convenient options.

How is security and confidentiality ensured when buying?

The purchasing process takes place on a special page that uses modern data protection methods, encryption, and guarantees full confidentiality of your payment and personal data.

01. Solving a chemistry problem

Content: 2.zip (23.70 KB )
Uploaded: 10.09.2023

Positive responses: 0
Negative responses: 0

Sold: 0
Refunds: 0

Seller: Derkach

Ask a question

$1.18

i agree with "Terms for Customers"

Bookmark

Description

01. Solving a chemistry problem - irongamers.ru

2. The results of parallel determinations of ethanol in wine by the enzymatic method were 13.1, 12.7, 12.6, 13.3 and 13.3%. For this series of data, calculate: a) standard deviation; b) relative standard deviation; c) standard deviation of the mean; d) relative standard deviation of the mean.

Additional information

If you do not open the file - install the RAR archiver. Inside the archive you will find a solution in Word format.

Responses

No feedback yet