25%
.850
.25
25 percent of a dollar is 25 cents.
65 - 40 = 25 ml
The increase is 32 percent. (8/25)
With 25ml methanol and 75ml water, there is 100ml in total. So there is 25/100 = 25% by volume methanol.
The sodium methoxide reacts with the water to produce sodium hydroxide an methanol.
50% methanol will damage the membrane more than 25% acetone. we did the lab.
If the concentration of alcohol and water solution is 25 percent alcohol by volume, the volume of alcohol in a 200 solution is 50.
Percent by Volume of Solute in Solvent = Volume Solute/ (Volume Solvent + Volume Solute) * 100% = 48/ 192 = 25%
Firstly, sodium methoxide is extremely toxic, so you want to handle it carefully without ever spilling (e.g. from an unsealed container). Secondly, methanol is hygroscopic and will pick up lots of water from the atmosphere. Water will hydrolyze sodium methoxide into methanol and sodium hydroxide. You wouldn't want your methanol to evaporate either.
Take 1 ml of 98% acid and add to 3 ml of water to get 25% acid. Total volume will be 4 ml (in this case). You can scale up this to any volume you need. (always add acid to water and not water to acid)
The volume will be 960 cubic units.
Assuming pressure stays constant, the volume decreases by 25%. PV = nRT.
Out of total volume of 1400Km3 of available water in the world, about 3.0 percent is only usable fresh water out of which 25 percent is only is ground water on earth. Out of this total 25 percentage of groundwater, 14% is at depth > 1KM and remaining 11% is at depth < 1 KM.
The solubility of sodium chloride in methanol is 14 g/kg at 25 0C.
Take one part pure apple juice and add three parts water.