Write the Molar St Mass?

Q: how many moles are in 13.4 g CaS?

A:

Q: the mass of 0.014 moles of sodium sulfate, in grams?

A: The relation between number of moles(n), molar mass(M) and mass (m) of a substance can be given by…

Q: Find the percentage oxygen by weight in KMnO4.

A: Percentage by mass – Formula is, This is formula for liquids. But for certain element present in a…

Q: 1.39 mol Nal is used in a reaction.  What is the mass of Nal present?

A:

Q: Write the two possible conversion factors that can be obtained from the molar mass for oxygen.

A: Molar mass of oxygen = 32 g/mol

Q: What is the molar mass of cholesterol if 0.00105 mol hasa mass of 0.406 g?

A:

Q: A cylinder of neon gas, Ne, contains 220.5 grams of gas. How many moles of neon gas does the sample…

A:

Q: What mass of carbon monoxide must react with oxygen to produce 0.69 g of carbon dioxide?

A: Given : mass of carbon dioxide i.e CO2  produced = 0.69 g Molar mass of CO2 = Atomic mass of C +…

Q: What is the molar mass of H2CO3? Enter your answer rounded to four sig figs, without units

A: Molar mass of a substance is calculated by the numerical sum of atomic masses.

Q: How do you find the molar mass of a solute? What do you do with it to find the number of moles of a…

A: Explained as follows

Q: If 0.274 moles of a substance weight 62.5 g what is the molar mass of the substance in units of…

A: as we know,                      number of moles = mass / molar mass                    molar mass=…

Q: How many grams are in 0.00156 molecules of water?

A:

Q: How many moles in 43.1 g carbon?

A: Molar mass of C is 12g/mol. Means 12 grams  of carbon is equals to 1 mole of C.

Q: Given the equation 2 NH3 -->  N2 + 3 H2, convert 5.25 mol N2 to moles of H2.  Round to the nearest…

A:

Q: How many moles would be in 75.45 g NaCl?  (no units/labels and the number should NOT be written in…

A: Given  mass of NaCl  = 75.45 gram  Molar mass of NaCl  = (23 + 35.5)gram/mole…

Q: According to the following reaction: CO (g) + H2O (l)  CO2 (g) + H2 (g) What would you multiply…

A:

Q: How many molecules are in 4.7 mol of BaSO4?

A: Given values, Moles of BaSO4 = 4.7 mol One  mole of any substance is equal to 6.022 x 10^23…

Q: reactant controls the amount of product formed in a chemical reaction? A. excess reactant B. mole…

A: Since you asked multiple questions so as per Q&A guidelines of portal I solved first question…

Q: How many grams is equivalent to 1.204x1024 molecules of H2O?

A: Given :  Number of molecules = 1.204x1024 molecules  To calculate : Mass of water

Q: A large organic molecule has a mass of 1.41 * 10-21 kg. What is the molar mass of this compound?

A: Given that, Mass of organic molecule= 1.41×10-21 kg Molar mass is given by the following formula…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.