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molar mass is the mass of one mole of a substance. A mole is an amount, refers to Avogadros number which is 6.022 x 1023. a mole of atoms is that many atoms. therefore the molar mass of potassium hydroxide KOH is the mass of that many molecules of KOH. On the Periodic Table the mass number for each element is molar, so all you need to do is add together the molar mass of each element in the compound. Molar mass of potassium (K) is 39 Molar mass of oxygen (O) is 16 Molar mass of hydrogen (H) is 1 There is one of each of these elements in a molecule of potassium hydroxide therefore the molar mass = 39 + 16 + 1 = 56
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∙ 16y ago
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∙ 11y agoThe molar mass of the element potassium is 39 g/mol.
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∙ 14y agoPotassium hydroxide is KOH. It has mass of 39+17=56
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∙ 11y agoThe atomic weights of hydrogen, oxygen and potassium are 1, 8 and 39 respectively. Threrefore the molecular weight of KOH is 48 g/mol.
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∙ 11y ago39+55+64=158
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∙ 13y ago212.27 g/mol
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∙ 13y ago17.08
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∙ 12y ago56.1056
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How many moles are in 234.1 grams of KOH?
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
How many moles are present in 34 grams of KOH?
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
The mass of a mole of a substance expressed in grams is called a?
molacular mass
How is the molar mass of an element determined?
the Atomic Mass in g/ml is the molar mass of the element
What is relationship between the formula weight of a substance and its molar mass?
Molar mass is the mass of particles in one mole of a substance. Molar mass is equal to atomic/ molecular/ formula mass in amu. Formula mass is in atomic mass unit while molar mass is in grams .
How many moles are in 234.1 grams of KOH?
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
How many moles are present in 34 grams of KOH?
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
What is the molar mass of sulfur?
The molar mass of sulfur is 32.065. Molar mass is the mass per mole of a substance. In other words, Molar Mass = Mass/Amount of Substance.
The mass of a mole of a substance expressed in grams is called a?
molacular mass
What is the molar mass of SiC?
Molar Mass of Carbon + Molar Mass of Silicon = Molar Mass of SiC. 12.0107 + 28.0855 = 40.0962 g / mol.
What is the molar mass of the sugar called glucose?
The molar mass of glucose is 180,16 g.
The molar mass of C3H8O2 is?
to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu) to find molar mass you add the molar mass of the carbons 3(amu)+ molar mass of the hydrogens 8(amu)
What is the molar mass of NaCl?
what is the molar mass for NaC1 !!!???!!!???!!!??? --- The molar mass of sodium chloride (NaCl) is 57,958 622 382.
How is the molar mass of an element determined?
the Atomic Mass in g/ml is the molar mass of the element
What is the molar mass of CuCl?
The molar mass of Copper is 63.54 g/mol http://www.noblemind.com/search.exe?keyword=Copper+Molar+Mass&var=2
What is molar mass of iron?
The molar mass of iron is 55.845g per mol. Molar mass is the mass of a given substance divided by its amount of substance.
What is the molar mass of MgS?
The molar mass of Mg = 24.305 g/mol
