To find the molar mass of NaCl, you add the mass of each element. Work out 22.9898 + 35.4530 = 58.4538.Moles of Solute Say you create a solution with 200 grams of table salt. One mole equals the molar mass of the solute which is 58.4538 grams. Divide the mass of the solute by the...
21%=massingofNaCl100mLoftotalsolution×100% Solving for the mass of solute you find: 21=massingofNaCl This means that there are 21 grams of NaCl in every 100 mL of solution. To find molarity you will need to convert this number of grams into moles by using the molar mass of NaCl: 21...
Say you need to make a solution of 1M NaCl for a reaction you are running. How would you know how much salt to weigh out and then add to a given volume of water? To do this, you need to find a way to relate the mass of a compound (salt) to the number of moles of that comp...
To solve the problem of how much NaCl should be added to 600 g of water to decrease the freezing point to -0.2°C, we will follow these steps:Step 1: Identify the given data - Mass of water (solvent) = 600 g - Density of water
1. Find the Number of Moles of Salt Rounding to one decimal place, the mass of one mole of sodium (Na) is 23.0 grams and that of chlorine (Cl) is 35.5 grams, so one mole of NaCl has a mass of 58.5 grams. You have 12 grams, which equals 12/58.5 = 0.21 moles. ...
Grams to Moles Conversion:Water, like any pure chemical compound, has a definite mass-mole correspondence or conversion. The correspondence or conversion factor is the molar mass of water. A mole of water constitutes 6.02×1023 molecules. This is true of a mole of...
Answer and Explanation: To find the amount of HCl formed, we have to first define the ratio of the reaction. So we have to calculate the formula mass of both reagent and...
2NaF + CaCl2 CaF2 + 2NaCl An excess of 0.20 M NaF is used to precipitate the calcium ions from a 50.0 mL sample of a calcium chloride solution. What is the concentration of the original calcium chlo What is the Ksp value for calcium chloride? What is the s...
Find the molarity of a solution that is made by dissolving 76.54g NaCl in enough water to make a 3,567 mL solution. To prepare a 248 mM sugar solution, how many sugars (molecular weight = 309 g/mole) are required to be added to 128 mL of water? Show your work and explain. ...
If it is referring to the solution, would the mass be 75.0g? q(soln)=m(soln)cΔT =75.0 x 4.184 x (27.21-25) =693.5J =0.6935kJ q(rxn)= -0.6935kJ ΔH=-0.6935kJ I also struggled to find the moles. What moles do I find? the NaOH or HCl? I wasn't sure, but I just used...