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
The molar mass of KOH (potassium hydroxide) is approximately 56.11 g/mol.
The molar mass of the element potassium is 39 g/mol.
Potassium hydroxide is KOH. It has mass of 39+17=56
The atomic weights of hydrogen, oxygen and potassium are 1, 8 and 39 respectively. Threrefore the molecular weight of KOH is 48 g/mol.
39+55+64=158
212.27 g/mol
17.08
56.1056
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
To calculate the number of moles of KOH, first find the molar mass of KOH which is 56.11 g/mol. Then, divide the given mass (1.350g) by the molar mass to get the number of moles. 1.350g / 56.11 g/mol = 0.024 moles of KOH.
The balanced chemical equation for the reaction is: 2 KOH + H2SO4 -> K2SO4 + 2 H2O From the equation, it can be seen that 2 moles of KOH react with 1 mole of H2SO4. Calculate the moles of H2SO4 (2.70 g / molar mass of H2SO4) and then use the mole ratio to find the moles of KOH required. Finally, convert the moles of KOH to mass (moles of KOH x molar mass of KOH) to get the required mass of KOH.
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
To find the molarity, first calculate the number of moles of KOH using its molar mass (56.11 g/mol). Then, divide the number of moles by the volume of solution in liters (0.7 L) to get the molarity. This will give you the concentration of KOH in moles per liter.
Molar mass of KOH = 39.1+16.0+1.0 = 56.1Amount of KOH = mass of sample / molar mass = 32/56.1 = 0.570mol
Depending upon how precise your masses are, KOH has a molar mass of about 56, so your answer is about 34/56.
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 the molar mass. This value is numerically equal to the atomic or molecular weight of the substance and is expressed in units of grams per mole.
Molar Mass of Carbon + Molar Mass of Silicon = Molar Mass of SiC. 12.0107 + 28.0855 = 40.0962 g / mol.
The molar mass of glucose is 180,16 g.
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 for NaC1 !!!???!!!???!!!??? --- The molar mass of sodium chloride (NaCl) is 57,958 622 382.
the Atomic Mass in g/ml is the molar mass of the element
The molar mass of Copper is 63.54 g/mol http://www.noblemind.com/search.exe?keyword=Copper+Molar+Mass&var=2
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.
The molar mass of Mg = 24.305 g/mol