Calculating Number of Molecules: We can calculate the number of molecules in a sample from the amount of samples given. Initially, we have to calculate the number of moles present in the given sample.1 mol of any sample contains6.022×1023molecules. Thus, we can calculate the number of mo...
To calculate the number of molecules in 1 cc of an ideal gas at 27°C and a pressure of 10 mm of mercury, we can follow these steps:Step 1: Convert Pressure from mmHg to dynes/cm² The pressure exerted by the gas is given as
Calculate the number of molecules in 2.00 moles of {eq}H_2S {/eq}. Hydrogen Sulfide: Hydrogen sulfide is a gaseous compound that has three atoms (one sulfur atom and two hydrogen atoms) and is identified by {eq}{{\text{H}}_{2}}\text{S} {/eq}. This is a highly toxic and fla...
In the planet Mars, the average temperature is around −53∘C and atmospheric pressure is 0.9 kPa. Calculate the number of molecules in unit volume in the planet Mars? Is this greater than that in earth ? Show More | ShareSaveClass...
Can the number of moles be a fractional value? Yes, the number of moles can be a fractional value. This usually occurs when dealing with small particles, such as atoms or molecules, where the mass is very small. In these cases, the number of moles is often expressed in...
Calculate the moles present in: 1) 2.00 grams of H 2 O .111 mol 2) 75.57 grams of KBr .6350 mol 3) 100. grams of KClO 4 .722 mol 4) 8.76 grams of NaOH .219 mol 5) 0.750 grams of Na 2 CO 3 7.08 x 10 -3 How many molecules are present in 40.0 g of H ...
The mole is one of the more important concepts in chemistry. In technical terms a mole consists of 6.022 x 1023molecules of a substance. In more practical terms a mole is the number of molecules necessary to have an amount of substance in grams equal to the substance’s molecular weight in...
3. Calculate the mass in grams of .38 mol sodium sulfite 4. Calculate the number of moles in 35.4 grams lithium carbonate 5. Calculate the number of atoms in 777.46 g of Li 6. Number of molecules in 43 g of ammonia 7. Number of F.U. in 105.2 grams of magnesium sulfate ...
Calculate the root mean square velocity and kinetic energy of F2, Cl2, and Br2 at 292 K. The concentration of a biomolecule inside a rod-shaped prokaryotic cell is 0.0041 M. (a) Calculate the number of molecules inside the cell, which is 4.9 mu m ...
Calculate the sum of the product of the number of molecules (Ni) and the mass of each molecule (Mi) for all data points. Step 1 Calculate the molecular weight (number average). MW―n=f1+f2+f3+f4f1M1+f2M2+f3M3+f4M4=0.20+0.30+0.30+0.200.20...