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3 years ago

Why could prouts idea be considered a creative thought?

Chemistry

1 answer:

gladu [14]3 years ago

6 0

Answer:

He was the first person in history to figure out the basic components of foodstuffs. A brilliant chemist, he's still best known for having one of the nearest misses in all of science. Probably he shouldn't have named the one wrong hypothesis of his career after himself.

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A piece of an unknown substance weighing 124.0 grams is heated in boiling water to 100.0oc. when the substance is placed in a ca

MakcuM [25]

The heat cause 300g water temperature increase from 20 to 26 celcius. The heat transferred would be: 300g * (26 °C -20 °C) *4.2 joule/gram °C= 7560J

The unknown substance is added to the water, so its final temperature should be the same as the water. The calculation would be:

7560J= 124g * (100-26)* specific heat

specific heat= 7560J / 124g / 74 °C= 0.8238 J/gram °C

3 0

4 years ago

PLEASE HELP!! WILL MARK BRAINLIEST AND THANK YOU!! EXTRA POINTS!!

babunello [35]

Answer:

Balance

Measures mass

Metric Ruler

Measures length

Units - centimeter

Spring Scale

Measures weight

Units - grams

Graduated Cylinder

Measures liquid volume

i think this is the right answer please don't report me

8 0

3 years ago

Is matter smooth and continuous?

Strike441 [17]

Answer:

Explanation:

<h2><u><em> Matter is smooth and continuous. ... A liquid has a definite volume; but it has no definite shape.</em></u></h2>

3 0

3 years ago

Indicate whether aqueous solutions of each of the following solutes will contain only ions, only molecules, or mostly molecules

Zanzabum

Answer:

Following are the solution to the given points:

Explanation:

In point a, the answer is only ions because of $NH_4Cl$ has a strong electrolyte.

In point b, the answer is the only molecules because of ethanol $CH_3CH_2OH$ , it has a nonelectrolyte.

In point c, the answer is the few ions because of hydrocyanic acid HCN, which has a weak electrolyte.

6 0

3 years ago

The density of a 45.0 mass % solution of ethanol (C2H5OH) in water is 0.873 g/mL. What is the molarity of the solution?

antoniya [11.8K]

Answer : The concentration of solution is, 8.53 M.

Explanation :

As we are given, 45.0 mass % solution of ethanol in water that means 45.0 g of ethanol present in 100 g of solution.

First we have to calculate the volume of solution.

$\text{Volume of solution}=\frac{\text{Mass of solution}}{\text{Density of solution}}$

$\text{Volume of solution}=\frac{100g}{0.873g/mL}=114.5mL$

Now we have to calculate the molarity of solution.

Mass of $C_2H_5OH$ = 45.0 g

Volume of solution = 114.5 mL

Molar mass of $C_2H_5OH$ = 46.07 g/mole

Molarity : It is defined as the number of moles of solute present in one liter of volume of solution.

Formula used :

$\text{Molarity}=\frac{\text{Mass of }C_2H_5OH\times 1000}{\text{Molar mass of }C_2H_5OH\times \text{Volume of solution (in mL)}}$

Now put all the given values in this formula, we get:

$\text{Molarity}=\frac{45.0g\times 1000}{46.07g/mole\times 114.5mL}=8.53mole/L=8.53M$

Therefore, the concentration of solution is, 8.53 M.

6 0

3 years ago

Why could prouts idea be considered a creative thought?​

Why could prouts idea be considered a creative thought?