505 grams of KOH are required to completely react with 4.50 mole of sulfuric acid. How many moles of products are produced?
Answers
Answer : The moles of products and
are, 4.50 and 9 moles.
Explanation : Given,
Mass of water = 5.2 g
Molar mass of water = 18 g/mole
Molar mass of = 32 g/mole
The balanced chemical reaction will be,
First we have to calculate the moles of KOH.
Now we have to calculate the limiting and excess reactant.
From the balanced reaction we conclude that
As, 1 mole of react with 2 mole of
So, 4.50 moles of react with
moles of
From this we conclude that, is an excess reagent because the given moles are greater than the required moles and
is a limiting reagent and it limits the formation of product.
Now we have to calculate the moles of products and
.
From the balanced chemical reaction, we conclude that
As, 1 moles of react to give 1 moles of
So, 4.50 moles of react to give 4.50 moles of
and,
As, 1 moles of react to give 2 moles of
So, 4.50 moles of react to give
moles of
Therefore, the moles of products and
are, 4.50 and 9 moles.
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The recipe for pumpkin pie calls for 3 tablespoons of flour and 1.5 cups of sugar for each pie. Which of the following conversion factors would be used to find out how many pies could be made from 7.5 cups of sugar.
Which substance is NOT a compound?a. salt b. sodium c. pure water d. carbon monoxide
O B. oxygen
O
C. mercury
O D. aluminum
Answers
Aluminum is solid at room temperature and will, therefore, have a melting point that is above room temperature.
Melting point
The room temperature is about 25 degrees Celsius.
Argon and oxygen are gases at room temperature.
Mercury is a liquid at room temperature.
Aluminum, on the other hand, is solid at room temperature. Hence, its melting point is definitely somewhere above room temperature.
More on melting points can be found here: brainly.com/question/25777663
volcanoes erupting
underwater earthquakes
O greenhouse gases forming
evaporation from lakes and rivers
Answers
Answer:
Option D:
evaporation from lakes and rivers
Explanation:
The water cycle is a natural cycle that shows how water moves and circulates within a natural environment. Water usually moves between the hydrosphere and the atmosphere through evaporation and condensation.
When water evaporates from the hydrosphere (the water bodies), it goes up into the atmosphere where it cools to become clouds. As more water evaporates, the clouds formed increase in mass. Once the clouds are too heavy to be held up in the sky, they fall down as precipitation (rain, snow, hail) into the water bodies and surrounding land below.
Answers
Answer:The percent composition by mass of hydrogen in is 6.32 %.
Explanation:
Molecular mass of the = 79 g/mol
Mass of the hydrogen atom present in one formula unit of :
The percent composition by mass of hydrogen in is 6.32 %.
Answers: 6.3%
Explanation:
Answers
Answers
Answers
The main distinction between ionic and covalent bonding is that ionic bonding is the complete transfers of electrons between atoms whereas covalent bonding is the sharing of electrons between atoms.
Final answer:
The main difference between ionic and covalent bonding is the way electrons participate in the bonding. In ionic bonds, electrons are transferred and attract each other due to opposite charges. In contrast, covalent bonding involves sharing of electron pairs between atoms, usually resulting in stronger bonds.
Explanation:
The main distinction between ionic and covalent bonding is the way in which the electrons are involved. In an ionic bond, electrons transfer from one atom to another, resulting in a positive and a negative ion that attract each other due to opposite charges. The energy change associated with ionic bonding depends on three key processes; the ionization of an electron from one atom, the acceptance of the electron by the second atom, and the Coulomb attraction of the resulting ions.
On the other hand, the covalent bond involves sharing of electrons between two atoms. These electrons move back and forth between the atoms and do not permanently stay with one atom. Because of this shared electron pair, covalent bonds are stronger than ionic bonds.
Deciding whether a bond is ionic or covalent often involves considering the types of atoms involved and their relative positions on the periodic table. Bonds between two nonmetals are generally covalent, while bonding between a metal and a nonmetal is often ionic by nature.
Learn more about Ionic and Covalent Bonding here:
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