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.

141. Solving a chemistry problem

Content: 8-0.rar (20.11 KB )
Uploaded: 14.05.2022

Positive responses: 0
Negative responses: 0

Sold: 0
Refunds: 0

Seller: Derkach

Ask a question

$1.25

i agree with "Terms for Customers"

Bookmark

Description

8. To determine cadmium in the alloy by the addition method, a sample of the alloy weighing m g was dissolved in a mixture of acids and the solution was diluted to 250.0 ml. An aliquot with a volume of 20.00 ml was polarographed and the height of the polarographic wave of cadmium was measured. Other alloy components under these conditions did not interfere with the determination of cadmium. After adding a standard solution Vst ml of 0.0300 M CdSCO4 to the electrolyzer, the wave height increased to h2.
Determine the mass fraction (%) of cadmium in the alloy for the following options:
Option 1
m, g 3,542
h1, mm19,0
Vст, ml10,00
h2, mm29,0

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