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How much water in grams can be made from 1.95 and times 1024 hydrogen molecules Answer in units of g.?
Wiki User
∙ 7y ago
2H2 + O2 ==> 2H2O
1.95x10^24 H2 molecules x 2 molecules H2O/2 molecules H2 x 1 mole H2O/6.02x10^23 molecules = 3.24 moles H2O x 18 g/mole = 58.3 g H2O
Wiki User
∙ 7y ago
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How many H atoms in a mole of hydrogen?
Trick question. Hydrogen is a diatomic molecule; it travels around with a buddy as H2 and not as a single atom. This is generally true of all gases except the inert gases. By definition, a mole of anything has 6.022 x 1023 "units" of that stuff. (That's Avogadro's number.) The "stuff" is the atoms or the molecules of that "stuff" and it can be thought of in terms of the "reaction units" of that stuff. We do not have H2 + O = H2O. We have 2H2 + O2 = 2H2O because oxygen is diatomic like hydrogen. The "reaction units" of hydrogen and oxygen are H2 and O2 respectively. Now the answer will appear. A mole of hydrogen is 6.022 x 1023 units of hydrogen which will be 6.022 x 1023 molecules of hydrogen which will be (6.022 x 1023 times 2) atoms of hydrogen which will be 1.204 x 1024 atoms of hydrogen.
What chemical elements are combined to make molecules of starch and cellulose?
Starch is made up primarily of glucose. These glucose units are joined by glycosidic bonds. The two primary molecules are amylose and amylopectin. Its chemical formula is C12H22O11.
How many moles are there in 235 grams of H2O?
For this you need the atomic (molecular) mass of H2O. Take the number of grams and divide it by the atomic mass. Multiply by one mole for units to cancel. H2O=18.0 grams235 grams H2O / (18.0 grams) = 13.1 moles H2O
What is the mass in grams of 4.80 x 1023 formula units of iron III nitrate?
6.023 x 1023 molecules of iron(III) nitrate weigh 241.86 g So, 4.80 x 1023 molecules will weigh 192.75 g
What is the smaller units that compose molecules?
atoms
How many grams of salt are in 3.23x1023?
31,35 g in 3,23.1023 molecules (formula units).
How many H atoms in a mole of hydrogen?
Trick question. Hydrogen is a diatomic molecule; it travels around with a buddy as H2 and not as a single atom. This is generally true of all gases except the inert gases. By definition, a mole of anything has 6.022 x 1023 "units" of that stuff. (That's Avogadro's number.) The "stuff" is the atoms or the molecules of that "stuff" and it can be thought of in terms of the "reaction units" of that stuff. We do not have H2 + O = H2O. We have 2H2 + O2 = 2H2O because oxygen is diatomic like hydrogen. The "reaction units" of hydrogen and oxygen are H2 and O2 respectively. Now the answer will appear. A mole of hydrogen is 6.022 x 1023 units of hydrogen which will be 6.022 x 1023 molecules of hydrogen which will be (6.022 x 1023 times 2) atoms of hydrogen which will be 1.204 x 1024 atoms of hydrogen.
How many molecules of carbon dioxide are there in 924 grams of this substance?
CO2 has a molecular weight of 44.01 g/mol, so 924 grams is equivalent to 20.99522835719155 moles. Avogadro's number gives the number of units in one mole of any substance (defined as its molecular weight in grams), equal to 6.022140857 × 10 to the 23 (Note the units may be electrons, atoms, ions, or molecules, depending on the nature of the substance). Thus the number of molecules in 924 grams of Carbon Dioxide is = 20.99522835719155 times 6.022140857 × 10 to the 23. = 126.4362224918882 × 10 to the 23
Which of the following elements have molecules as their basic units?
A.chlorine B. silver C. helium D. hydrogen The answer is A and D
What is the number of moles in 4.50 grams of H2O?
There are four molecules of water in 4H2O. One molecule of water is written as H2O. The subscript 2 tells you that there are two H(hydrogen) atoms. Since there is no subscript after the O there is one O(oxygen) atom. Now back to 4H2O. The coefficient 4 tells you there are four molecules of H2O. Therefore there are eight H(hydrogen) atoms and four O(oxygen) atoms.
Are Polymers molecules made from repeating units of identical organic compounds that are linked together by hydrogen bonds?
False, they are by covalent bonds
What chemical elements are combined to make molecules of starch and cellulose?
Starch is made up primarily of glucose. These glucose units are joined by glycosidic bonds. The two primary molecules are amylose and amylopectin. Its chemical formula is C12H22O11.
How many molecules are in 7.4 g H'S?
By definition, Avogadro's Number is the number of molecules or formula units in the number of grams corresponding to the gram molecular weight or gram formula unit, and by experiment, Avogadro's Number is about 6.022 X 1023. Therefore, 7.75 X 1025 formula units contains (7.75 X 1025/6.022 X 1023) or 1.29 X 102 moles or formula units, to the justified number of significant digits.
How many grams are in a mole of hydrogen chloride?
Trick question. Hydrogen is a diatomic molecule; it travels around with a buddy as H2 and not as a single atom. This is generally true of all gases except the inert gases. By definition, a mole of anything has 6.022 x 1023 "units" of that stuff. (That's Avogadro's number.) The "stuff" is the atoms or the molecules of that "stuff" and it can be thought of in terms of the "reaction units" of that stuff. We do not have H2 + O = H2O. We have 2H2 + O2 = 2H2O because oxygen is diatomic like hydrogen. The "reaction units" of hydrogen and oxygen are H2 and O2 respectively. Now the answer will appear. A mole of hydrogen is 6.022 x 1023 units of hydrogen which will be 6.022 x 1023 molecules of hydrogen which will be (6.022 x 1023 times 2) atoms of hydrogen which will be 1.204 x 1024 atoms of hydrogen.
What is a conversion in math?
A conversion is the change between two units (usually units of measurement). For example... if you have 2 kg and you want to find out how many grams are in it, you multiply by the amount of grams there are in ONE kilogram, 1000. Therefore, 2 times 1000 is 2000 grams.
If 1 unit equals 15 grams how many units for 9.374 grams?
# of units = 9.374/15 = 0.625 units
What are the molecules in starch?
Starch consist of the elements Carbon, Hydrogen and Oxygen.
