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3 years ago

8

When a reaction between Magnesium and Hydrochloric acid take place the mass of the reactants is more than the mass of the produc

ts. Why would this occur?

1 answer:

LiRa [457]3 years ago

4 0

Https://edu.rsc.org/resources/the-rate-of-reaction-of-magnesium-with-hydrochloric-acid/1916.article

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Arterial blood contains about 0.25 g of oxygen per liter at 37°C and standard atmospheric pressure. Under these conditions, the

Olin [163]

Firstly we need to determine the partial pressure of O2:

$\begin{gathered} P_{O_2}=X\times P_T \\ P_{O_2}:partial\text{ }pressure \\ X:mole\text{ }fraction \\ P_T:total\text{ }pressure \\ \\ P_{O_2}=0.209\times0.35\text{ }atm \\ P_{O_2}=0.073\text{ }atm \end{gathered}$

We will now use the Henry's Law equation to determine the solubility of the gas:

$\begin{gathered} c=K_H\times P_{O_2} \\ c:solubility\text{ }or\text{ }concentration\text{ }of\text{ }the\text{ }gas(M) \\ K_H:Henry^{\prime}sLawconstant=3.7\times10^{-2}M\text{ }atm^{-1} \\ P_{O_2}:partial\text{ }pressure\text{ }of\text{ }the\text{ }gas=0.073atm \\ \\ c=3.7\times10^{-2}M\text{ }atm^{-1}\times0.073 \\ c=2.7\times10^{-3}M \end{gathered}$

Answer: Solubility is 2.7x10^-3 M

6 0

8 months ago

The first word in the name of an ester is derived from the ________ used in the esterification.

oksian1 [2.3K]

The first word in the name of an ester is derived from the alcohol used in the esterification.

<h3>What is esterification?</h3>

Esterification is a chemical process where an organic acid with the formula is combined with an alcohol molecule having the chemical formula (ROH).

The process of esterification is known to produce an ester molecule and during this phenomenon is released water (H2O).

An example of an esterification reaction occurs when ethanoic acid (i.e., the active ingredient of vinegar) can react with C2H5OH (i.e., ethanol) in order to form the ethyl ethanoate molecule, which is a well-known ester molecule.

In conclusion, the first word in the name of an ester is derived from the Alcohol used in the esterification.

Learn more about esterification here:

brainly.com/question/14028062

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8 0

2 years ago

Covalent bonds take place between..

umka2103 [35]

Answer:

Covalent Bonds are formed when two non-metals share electrons

Hope this helps

7 0

2 years ago

What type of organism does this cell most likely belong to?

maks197457 [2]

Answer:

A) a plant

Explanation:

A plant cell consists of cytoplasm, chloroplast, nucleus, mitochondria, cell wall, and a Golgi apparatus. They represent a eukaryotic cell of green plants and there are various types of plant cells such as Parenchyma, Collenchyma, Sclerenchyma, Xylem, Phloem, and the Epidermis.

4 0

3 years ago

Simon has collected three samples from the coral reef where he observes marine life. He must determine whether each one is a pur

-Dominant- [34]

Answer:

SAMPLE A - pure substance.

SAMPLE B - homogeneous mixture.

SAMPLE C - heterogeneous mixture.

Explanation:

3 0

3 years ago