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3 years ago

Plssss its a chem test help me

Chemistry

1 answer:

ad-work [718]3 years ago

6 0

Answer:

a. looks to be directly proportional because as one goes up, so does the other.

b. the pressure can be found from the line you create with the x and y values. the pressure will be less than 726 since you can see the values go down as temp goes down.

if that website calculator does not have an equation creator, you'd have to use excel to calculate pressure at 0°c, there's an excel function thst would estimate the value.

since it's a test, this was the fastest info I could gather.

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3 years ago

Which of these is the final result of secondadry succession?

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Explanation:

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What are different type of plastids explain them?

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Answer:

Explanation:

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3) Leucoplasts:- The colourless plastids for monoterpene synthesis found in non- photosynthetic parts of the plants.

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3 years ago

Ethylene produced by fermentation has a specific gravity of 0.787 at 25 degree Celsius. What is the volume of 125g of ethanol at

WITCHER [35]

Answer: The volume of given amount of ethanol at this temperature is 159.44 mL

Explanation:

Specific gravity is given by the formula:

$\text{Specific gravity}=\frac{\text{Density of a substance}}{\text{Density of water}}$

We are given:

Density of water = 0.997 g/mL

Specific gravity of ethanol = 0.787

Putting values in above equation, we get:

$0.787=\frac{\text{Density of a substance}}{0.997g/mL}\\\\\text{Density of a substance}=(0.787\times 0.997g/mL)=0.784g/mL$

Density is defined as the ratio of mass and volume of a substance.

$\text{Density}=\frac{\text{Mass}}{\text{Volume}}$ ......(1)

Given values:

Mass of ethanol = 125 g

Density of ethanol = 0.784 g/mL

Putting values in equation 1, we get:

$\text{Volume of ethanol}=\frac{125g}{0.784g/mL}=159.44mL$

Hence, the volume of given amount of ethanol at this temperature is 159.44 mL

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