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3 years ago

1 What is the mass of 0.328 mol of CO2?

2 answers:

5 0

A practical chemical unit for handling atoms and molecules. Since atoms and molecules are so small, it is impossible to handle and count atoms and molecules individually. Therefore, the Chemists devised a special unit to describe very large number of atoms, ions and molecules and it is called mole and is abbreviated as mol.

Crank3 years ago

3 0

Answer:

use this conversation units to help you hope it helps

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Which of the following bases can remove a proton from formic acid in a reaction that favors products?

Debora [2.8K]

Hydroxide ion is a strong and would react with H+ to form water

OH-+H+---->H2O

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3 years ago

What grey rock that has crinoids and brachiopods reacts to hydrochloric acid?

Anon25 [30]

The rock is limestone, I hope this helps!!

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3 years ago

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Which of the following NOT a principle of deep ecology, according to Arne Naess? All life has intrinsic value Environment must b

motikmotik

Answer:

On the picture are all principles cited on wikipedia.

Explanation:

So the answer is

1. Environment must be exploited to improve living standards

2. Flourishing human and nonhuman life depends on diversity of life forms

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4 years ago

In an experiment, 34.8243g of copper (II) nitrate hydrate, Cu(NO3)2•zH2O was heated to a constant mass of 27.0351g. Calculate th

Leto [7]

Answer:

1) The mass of water lost = 7.7892 grams

2) Z = 3: Cu(NO3)2*3H2O

Explanation:

Step 1: Data given

Mass of copper (II) nitrate hydrate, Cu(NO3)2•zH2O = 34.8243 grams

Mass of substance after heating = 27.0351 grams

Molar mass of Cu(NO3)2 = 187.56 g/mol

Molar mass of H2O = 18.02 g/mol

Step 2: Calculate mass of water

The mass of water is the mass lost after heating.

Mass water = 34.8243 - 27.0351 = 7.7892 grams of water

Step 3: Calculate moles of Cu(NO3)2

Moles Cu(NO3)2 = Mass Cu(NO3)2 / Molar mass Cu(NO3)2

Moles Cu(NO3)2 = 27.0351 grams / 187.56 g/mol

Moles Cu(NO3)2 = 0.144 moles

Step 4: Calculate moles of H2O

Moles H2O = 7.7892 grams / 18.02 g/mol

Moles H2O = 0.432 moles

Step 5: Calculate Z

z = moles H2O / moles Cu(NO3)2

Z = 0.432/0.144

Z = 3

This means we have 3 water molecules in the formula. This makes the formula ofthe hydrate: Cu(NO3)2*3H2O

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3 years ago

sample of carbon dioxide is contained in a 500.0 mL flask at 0.955 atm and 15.9 ∘ C. How many molecules of gas are in the sample

Ray Of Light [21]

Hope this helped, if you found it helpful please mark me as brainliest or give thanks :)

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4 years ago

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