Generate Quiz 68B09F5012654

60g/mol is Mr of 1-propanol.

12-29g/mol is Mr of 1-bromopropane.

60g => 122.9g

10g => xg

x = 20.5

(Actual Yield / Theoretical Yield) × 100 = Percentage Yield

= 12/20 x 100

= 58%

Instead of acting as a weak base in water, H2S functions as a weak acid. Because the nucleus has less of an impact in H2S, it can release its electrons.

Silver nitrate is broken down to produce silver, nitrogen dioxide, and oxygen gas. The balanced chemical equation for silver nitrate’s breakdown is as follows:

2AgNO3 → 2Ag + 2NO2 + O2

We obtain from a balanced chemical equation:

Two moles of Ag are produced from two moles of lunar caustic (AgNO3).

Thus, 0.5 moles of Ag will be produced from 0.5 moles of lunar caustic.

Mass/molar mass = moles

mass = molar mass * moles

0.5 * 107.8 = mass

mass = 53.9 or 54 g.

Mg : O 60/24 : 40/16 2.5 : 2.5 1 : 1

The amino acids are considered basic because they have more -NH2 than -COOH. They have high pKa values and function as bases in nature.

The structure of lysine is shown below;

It functions as a basic amino acid because it has two -NH2 groups and only one -COOH group.

An organic molecule with two distinct oxygen atoms single-bonded to a central carbon atom is called an acetal. Acetals are geminal-diether derivatives of aldehydes or ketones that are created when two equivalents (or more) of alcohol react with them and water is removed.

For a reaction of the first order (half life is constant), For a second-order reaction, half-life rises as concentration falls.

The enzyme lactate dehydrogenase-1, or LDH-1, is present in the heart, liver, kidneys, and red blood cells, among other tissues. When evaluating specific medical conditions, it is a crucial diagnostic marker.
Specifically, heart conditions like myocardial infarction (heart attack), congestive heart failure, and other types of cardiac injury or damage are frequently linked to elevated levels of LDH-1. LDH-1 levels rise as a result of the heart muscle’s release of the hormone into the bloodstream in response to injury or stress.
As a result, patients with heart problems frequently exhibit elevated LDH-1, which makes it a valuable marker for evaluating heart health and identifying associated disorders.

A chemical process that releases heat into the environment and raises the temperature is known as an exothermic reaction. Ammonia is produced by an exothermic reaction between nitrogen and hydrogen gases in the Haber process. This makes it appropriate for manufacture on an industrial scale since heat is generated throughout the reaction.

The overall trend can be explained by the two forces at play: inter-electronic repulsions and nuclear attractions, which support an increase in atomic radii and a decrease in atomic radii, respectively.

Since there are fewer electrons in the inner shell and the shielding power of the d orbital is low, inter-electronic repulsions will be working less than nuclear charge, which causes a decrease in atomic radii. This is the first factor that causes nuclear charge to increase as we move from Sc to Zn.

These two factors are essentially operating at equal levels in the middle, which leads to size consistency.

Ultimately, the outer electrons experience stronger repulsions and are marginally pushed away as the inner orbital’s electron count rises. Even though the d orbital has less shielding power, there are too many electrons for electronic repulsion to become the dominant factor in the end, which causes the atomic radii to increase.

O = 16 g/mol

Mr. = 16

Mass/Mr = Mole => 32/16 => 2mol

1mol => 6.02×10^23 molecules

2mol => x molecules

x=2 x 6.02×10^23 molecules

When all of the substances involved in the reaction are in their standard states—solutions at 1M concentrations, gases at 1 atm pressure, and solids and liquids in pure form at 25C—the standard electrode potential, represented by the symbol E°, is the potential of the reaction that takes place at the electrode.

The number of particles in one mole of a substance is known as Avogadro’s number. It is roughly equivalent to 6.022 x 1023 particles per mole and was determined experimentally.

22.4 litres of CO2 has 44 grams weight. One mole is involved.

In 11.2 litres of CO2​, it weighs only 22 grams. The amount is 0.5 mole.

The proton, which is the lightest of all the positive particles derived from hydrogen, has a mass 1836 times that of their electron counterpart.

Since these gases are inert and not charged, options B and C are incorrect.

The majority of the gases that make up air are nitrogen and oxygen, both of which are heavy and negatively charged.

Carboxylic acids are condensed to acid anhydrides using phosphorous pentoxide.

Mole= Mass/ relative atomic mass.

Mole x Relative Atomic Mass = Mass

Mass is equal to 2 x 32.(The fact that oxygen gas is written as O2 means that O2 is 32.)

64g is the mass.