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slavikrds [6]
2 years ago
13

Cl2 + 2na → 2nacl 1.5 moles of cl2 and 4.0 moles of na are combined and allowed to react. the limiting reactant will be ___(i)__

_, and the theoretical yield of nacl will be ___(ii)____.

Chemistry
1 answer:
cricket20 [7]2 years ago
7 0
Hope this helps you;):):

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Combining 0.380 mol Fe2O3 with excess carbon produced 13.7 g Fe
Alex_Xolod [135]

Answer:

Percent yield = 32.9%

Explanation:

Given data:

Number of moles of Fe₂O₃ = 0.380 mol

Number of moles of Fe produced = 13.7 g

Theoretical yield = ?

Actual yield of iron in mol = ?

Percent yield = ?

Solution:

Chemical equation:

Fe₂O₃ + 3C   →   2Fe  + 3CO

Actual yield of iron in moles:

Number of  moles = mass/ molar mass

Number of moles = 13.7 g/ 55.8 g/mol

Number of moles = 0.25 mol

Theoretical yield:

                    Fe₂O₃          :           Fe

                      1                :              2

                    0.380         :          2×0.380 = 0.76

Theoretical yield = 0.76 mol

Percent yield:

Percent yield = actual yield / theoretical yield × 100

Percent yield = 0.25 mol /0.76 mol × 100

Percent yield = 32.9%

8 0
3 years ago
What element is being oxidized in the following redox reaction?
bogdanovich [222]

Answer:

Cr

Explanation:

Cr goes from +3 to +6 and when it increases it means is being oxidized.

8 0
2 years ago
Name the following ionic compounds, keeping in mind that a transition metal cation must include its charge. ____________________
Lilit [14]

Answer :

(a) The name for TiO_2 is titanium(IV) oxide.

(b) The name for BaCl_2 is barium chloride.

(c) The name for CuCl_3 is copper(III) chloride.

(d) The name for KI is potassium iodide.

(e) The name for SrCl_2 is strontium chloride.

(f) The name for CuBr_2 is copper(II) bromide.

Explanation :

Ionic compound : It is defined as the compound which is formed when electron gets transferred from one atom to another atom.

Ionic compound are usually formed when a metal reacts with a non-metal.

The nomenclature of ionic compounds is given by:

1. Positive ion is written first.

2. The negative ion is written next and a suffix is added at the end of the negative ion. The suffix written is '-ide'.

3. In case of transition metals, the oxidation state are written in roman numerals in bracket in-front of positive ions.

(a) TiO_2

TiO_2 is an ionic compound because titanium element is a metal and oxygen element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on tin is (+4) and the the charge on oxygen is (-2). Thus, the name for TiO_2 is titanium(IV) oxide.

(b) BaCl_2

BaCl_2 is an ionic compound because barium element is a metal and chlorine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on barium is (+2) and the the charge on chlorine is (-1). Thus, the name for BaCl_2 is barium chloride.

(c) CuCl_3

CuCl_3 is an ionic compound because copper element is a metal and chlorine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on copper is (+3) and the the charge on chlorine is (-1). Thus, the name for CuCl_3 is copper(III) chloride.

(d) KI

KI is an ionic compound because potassium element is a metal and iodine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on potassium is (+1) and the the charge on iodine is (-1). Thus, the name for KI is potassium iodide.

(e) SrCl_2

SrCl_2 is an ionic compound because strontium element is a metal and chlorine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on strontium is (+2) and the the charge on chlorine is (-1). Thus, the name for SrCl_2 is strontium chloride.

(f) CuBr_2

CuBr_2 is an ionic compound because copper element is a metal and bromine element is a non-metal. The bond formed between a metal and a non-metal is always ionic in nature.

The charge on copper is (+2) and the the charge on bromine is (-1). Thus, the name for CuBr_2 is copper(II) bromide.

3 0
3 years ago
The chemical formula for beryllium oxide is BeO.A chemist determined by measurements that 0.045 moles of beryllium participated
blondinia [14]

Answer: 0.405g

Explanation:

Molar Mass of Be = 9g/mol

Number of mole of Be = 0.045mol

Mass conc. Of Be = 0.045 x 9 = 0.405g

8 0
3 years ago
A negative change in entropy indicates that...
vovangra [49]

Answer:

B. the products have a smaller number of available energy microstates than the reactants.

4 0
2 years ago
Read 2 more answers
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