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3 years ago

How do people start alcohol consumption

Chemistry

1 answer:

Debora [2.8K]3 years ago

6 0

Answer:

Explanation:Due to the mental pressure,

Due to peer pressure,

Lack of love and affection from the family members.

Influence from the T.V advertisement.

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Which elements make up a water molecule?

shutvik [7]

Answer:

Hydrogen and Oxygen

Explanation:

also it can be written as H2O

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3 years ago

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The theoretical yield for a reaction is 55.9 g LiCl. The actual yield is 24.6 g LiCl. What is the percent yield of the reaction?

Alexxx [7]

% yield = actual yield divided by theoretical x 100
24.6 divided by 55.9 is 0.44
.44 x 100 =44%
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4 years ago

How many acetone molecules are in a bottle of acetone with a volume of 445 mL ? (density of acetone = 0.788 g/cm3).

Mkey [24]

<h2>Hello!</h2>

The answer is: $3.63x10^{24}particles$

First, we need to calculate the molecular weight of the acetone (CH3COCH3)

So,

$C=12.011g/mol\\O=15.99g/mol\\H=1.008g/mol$

Then,

$CH3COCH3=12.011+(1.008)*3+12.011+15.999+12.011+(1.008)*3=58.08g/mol$

Second, we need to calculate the mass of the acetone in the bottle

We need to remember that $1cm^{3}=1mL$

So,

$445cm^{3}*\frac{0.788g}{cm^{3}}=350.66g$

Third, we need to calculate the number of moles:

$350.66g*\frac{1mol}{58.08g}=6.03moles$

Fourth, we need to calculate the number of atoms:

Remember, $1 mol=6.022x10^{23}particles$

Therefore,

$6.03moles*\frac{6.022x10^{23}particles }{1mol}=3.63x10^{24}particles$

Have a nice day!

4 0

4 years ago

Read 2 more answers

socratic For the following reaction, 25.6 grams of hydrochloric acid are allowed to react with 52.4 grams of barium hydroxide .

TEA [102]

Answer:

63.7g BaCl₂

Explanation:

Based on the chemical reaction:

2HCl + Ba(OH)₂ → BaCl₂ + 2H₂O

<em>2 moles of HCl reacts per mole of barium hydroxide</em>

To solve this question, we need to convert the moles of each reactant to moles and, using the chemical reaction, find limiting reactant as follows:

<em>Moles Ba(OH)₂ - Molar mass: 171.34g/mol-</em>

52.4g Ba(OH)₂ * (1mol / 171.34g) = 0.306 moles Ba(OH)₂

<em>Moles HCl - Molar mass: 36.46g/mol-</em>

25.6g HCl * (1mol / 36.46g) = 0.702 moles HCl

For a complete reaction of 0.702 moles HCl are required:

0.702 moles HCl * (1mol Ba(OH)₂ / 2mol HCl) = 0.351 moles of Ba(OH)₂

As there are just 0.306 moles, limiting reactant is Ba(OH)₂

That means the maximum amount of BaCl₂ produced is:

0.306 moles Ba(OH)₂ * (1mol BaCl₂ / 1 mol Ba(OH)₂) = 0.306 moles BaCl₂

In mass -Molar mass BaCl₂: 208.23g/mol-

0.306 moles BaCl₂ * (208.23g / mol) = 63.7g BaCl₂

3 0

3 years ago

Which of the following is a physical change?

yan [13]

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds.

6 0

3 years ago

How do people start alcohol consumption​

How do people start alcohol consumption