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azamat
2 years ago
11

Mole ratio practice worksheet part 1

Chemistry
1 answer:
Arlecino [84]2 years ago
7 0
2. 0.05733 mol CuCl2 (1 mol Cu(OH)2 / 1 mol CuCl2) = 0.05733 mol Cu(OH)2 <-- It's the same because there's a 1:1 ratio between the reactant and the product.
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What is the mass of silver metal produced from 6.35 g of copper when copper reacts with excess silver nitrate in a single replac
frutty [35]
<span>21.6 grams The balanced equation for the reaction is Cu + 2AgNO3 ==> 2Ag + Cu(NO3)2 So you can easily determine that for each mole of copper used, 2 moles of silver are produced. So let's lookup the atomic weights of copper and silver. Atomic weight copper = 63.546 Atomic weight silver = 107.8682 Moles copper = 6.35 g / 63.546 g/mol = 0.099927611 mol Since we'll produce 2 moles of silver per mole of copper used, we get 0.099927611 mol * 2 = 0.199855223 mol And to get the mass, just multiply by the atomic weight of silver. So 0.199855223 * 107.8682 = 21.55802316 g Finally, round to 3 significant figures, giving 21.6 g.</span>
8 0
4 years ago
How many protons, neutrons, and electrons does the following atom have?
yarga [219]

Answer:

Option C 28 Proton 31 neutron 26 elecrtons

Explanation:

8 0
3 years ago
If this compounds (N2O) molecular mass is 88g are the empirical and molecular formulas the same as one another or different
Softa [21]

Answer:

No

Explanation:

Let us examine this problem carefully:

Given compound is N₂O

Molecular mass = 88g

Now,

The empirical formula is the simplest formula of a compound.

The molecular formula is the true formula of the compound that shows that actual ratios of the atoms in a compound.

To find if they both have the same molecular and empirical formula, they must have the same molecular mass.

 For N₂O;

     Molecular mass = 2(14) + 16 = 44g/mole

But the true and given molecular formula of the compound is 88g/mole

This shows that the compound given is the empirical formula of the compound.

  Molecular formula:

              molecular mass of empirical formula x n = molecular mass of molecular formula

         n  = \frac{88}{44}  = 2

Molecular formula of compound = 2(N₂O) = N₄O₂

Therefore the empirical and molecular formulas are not the same

8 0
4 years ago
Describe how a compound different from the elements that make it up?
Shkiper50 [21]

Answer:  The difference between an element and a compound is that an element is a pure substance that is made of only one element, but a compound is 2 or more elements together

Explanation:

3 0
3 years ago
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What is the difference between diffusion and osmoses<br><br>​
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Answer:

Diffusion means that particles travel from a higher concentration to a lower concentration region before balance is achieved. The semi-permeable membrane is present in osmosis, so that only solvent molecules can travel freely to equalize the levels.

5 0
3 years ago
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