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inysia [295]
3 years ago
12

Question is chemistry:

Chemistry
1 answer:
Black_prince [1.1K]3 years ago
8 0

H2S hydrogen sulfide gas has a higher lattice energy because

Formula: H2S

Molar mass: 34.1 g/mol

Boiling point: -76°F (-60°C)

Melting point: -115.6°F (-82°C)

Density: 1.36 kg/m³

Soluble in: Water, Alcohol

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Morphine has the formula c17h19no3. it is a base and accepts one proton per molecule. it is isolated from opium. a 0.685 −g samp
kotykmax [81]
2 C₁₇H₁₉NO₃ + H₂SO₄ → Product
Moles of H₂SO₄ = M x V(liters) = 0.0116 x 8.91/1000 = 1.033 x 10⁻⁴ mole 
moles of morphine = 2 x moles of H₂SO₄ = 2.066 x 10⁻⁴
Mass of morphine = moles x molar mass of morphine = 2.066 x 10⁻⁴ x 285.34 
                             = 0.059 g
percent morphine = \frac{mass of morphine}{mass of opium} x 100
                             = \frac{0.059}{0.685} x 100 = 8.6 %   
7 0
3 years ago
It takes about 38 m3 of boards and plywood to build an average-size, single-family home. Can an average-size, single-family home
Alexeev081 [22]

A) The answer to whether an average-size, single-family home be built with one day’s output from the saw mill is; No, it can't be built from one days output

B) The number of days will it take for the saw mill to produce enough lumber to build a neighborhood of 100 average-size homes is; 1100 days

A) From research, the average size capacity saw mill usually produces around 1500 board feet of boards per day.

Now, converting board ft to cubic meter gives;

1 board feet = 1/424 m³

Thus; 1500 board feet = 1500 * 1/424 ≈ 3.54 m³

Now, we are told that it takes 38 m³ of boards and plywood to build an average size single family home.

Since one days output = 3.54 m³

It is less than the volume required for the average sized house and so the daily output will not be sufficient.

B) Number of days to produce enough boards and plywood for the average sized family home = 38/3.54 ≈ 11 days

Thus, for 100  homes;

Number of days = 100 * 11 = 1100 days

Read more about production capacity at; brainly.com/question/25899399

4 0
2 years ago
Which of these is made up of cells and tissues that perform a larger function? Group of answer choices Atom Compound Molecule Or
Anit [1.1K]

Answer:

compound

Explanation:

because it is made up of pure substance consists of atom

5 0
2 years ago
Read 2 more answers
Which of the following is most clearly an example of a physical change?
kaheart [24]

Physical change is described as the change that affects the form of a chemical compound but not its chemical composition. It involves the change in physical properties.

When a solid is dissolved in the liquid the solid gets dissolved in the liquid there is no breakage in the bonds and same composition of the compounds are at the end of the change. When a solution changes colour due to the addition of an other substance the bonds are broken or formed between molecules or atoms. The substance with a certain set of properties is turned into different substance with different properties. Hence it is a chemical change.

Two liquids producing heat when mixed together results in the temperature change. The heat is produced due to the increase in the temperature. Hence it is a chemical change.

When two solutions are combined gas is released due to the temperature change. This is also a chemical change

Therefore the answer is A.

7 0
3 years ago
Will an object with a net force of zero acting on it move? Explain why or why not
Vesnalui [34]

Answer:

If the object was already moving, then it will just keep moving. So, yes, the object can be moving when there is no force applied to it. Note: "force" in this discussion is to be interpreted as net force. Net force is the vector sum of all forces acting on the object.

Explanation:

8 0
3 years ago
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