3 years ago

Quais das substâncias abaixo não conduziram a corrente elétrica em solução aquosa

Chemistry

1 answer:

Lilit [14]3 years ago

4 0

Je parle francais aussi

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All matter has __. A.) COLOR B.) MASS C.) VOLUME D.) WEIGHT

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I'm pretty sure it's B) Mass

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3 years ago

How many moles are present in 1.75 g of zinc sulfate, Znso, ?

Cerrena [4.2K]

Explanation:

We assume you are converting between grams ZnSO4 and mole. You can view more details on each measurement unit: molecular weight of ZnSO4 or mol This compound is also known as Zinc Sulfate. The SI base unit for amount of substance is the mole. 1 grams ZnSO4 is equal to 0.0061941519772353 mole.

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3 years ago

Put the following steps of specimen preparation and staining in order: I. Application of staining dyes II. Heat fixation III. Sm

MrRissso [65]

Answer:

Explanation:

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3 years ago

1. A 225-L barrel of white wine has an initial free SO2 concentration of 22 ppm and a pH of 3.70. How much SO2 (in grams) should

Alexandra [31]

Answer:

The appropriate answer is "9.225 g".

Explanation:

Given:

Required level,

= 63 ppm

Initial concentration,

= 22 ppm

Now,

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= $Required \ level -Initial \ concentration$

= $63-22$

= $41 \ ppm$

The amount of free SO₂ to be added will be:

= $41\times 225$

= $9225 \ mg$

∵ 1000 mg = 1 g

So,

= $9225\times \frac{1}{1000}$

= $9.225$

Thus,

"9.225 g" should be added.

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3 years ago

A solution that is a 4 on pH scale is a

Dominik [7]

A pH scale runs from 1 to 14 with 7 being neutral.

1-6 has base like properties
8-14 has avid line properties

since this solution has a pH scale of 4.... the solution is basic

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3 years ago

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