Table of Contents
How do you calculate volume on Chemi?
Calculate the volume of the substance by dividing the mass of the substance by the density (volume = mass/density).
What does 30% w/w mean?
Like before, this stands for weight per weight. In this case, the volume of each chemical is disregarded and only the weight is used. So, if the total mass of a 100g solution is made up of 30g hydrochloric acid in 70g of water, then we would express this as hydrochloric acid 30% w/w.
What are the units of W V?
The most common units for w/v% (m/v%) concentration are g/100 mL (grams of solute per 100 mL of solution). If the mass of the solute is not given in grams then you will need to convert the units to grams. If the volume of the solution is not given in millilitres then you will need to convert the units to millilitres.
What does 0.01% w/v mean?
0.1% w/v. That means that, for every 100 mL you have 0.1 g. 500 mL. That is the total volume specified. At the quoted concentration then it contains 0.5 g, or 500 mg, of whatever it is that we are talking about.
How do you make a 30% WV solution?
If you are sure to have 30% w/v solution, it means that you have 30 g H2O2 per 100 mL solution. Then 30/30.4=0.987 moles of H2O2 in 100mL, corresponding to 9.87 M. Therefore you have to dilute the solution by a factor 100, approximately.
What is the volume strength of Perhydrol?
– Perhydrol is the common name for the hydrogen peroxide solution having volume strength 100.
What is W W concentration?
(chemistry) “weight for weight” or “weight by weight”, the proportion of a particular substance within a mixture, as measured by weight or mass. Water Content: 10 g/kg max (1% w/w)
What is weight per volume?
A weight/volume percent concentration (w/v%) is defined as mass of solute divided by volume of solution and multiplied by 100%.
What is the formula to find volume?
Volume = π × h (R 2 – r 2) Use π = 3.14. How to use the volume formulas to calculate the volume.
How much NaOH does it take to neutralize 2 mL H2SO4?
H2SO4 is a polyprotic acid and therefore has two dissociations that can potentially liberate H+: H2SO4 → H+ + HSO4 Ka is so large that H2SO4 dissociates completely. Since H2SO4 completely dissociates to H+ and HSO4 then a 1 M H2SO4 solution will yield 1 M H+. So it will take 2 ml of a 1 M H2SO4 solution to neutralize 2 ml of a 1 M NaOH solution.
What is the final molarity of NaOH and volume of H2SO4?
Final molarity has to be 0.05 and volume will be (from NaOH)50+X (from H2SO4). (for H2SO4 the product of volume and molarity)x*0.1-50*0.1 (for H2SO4 the product of volume and molarity)
What is the dielectric constant of H2SO4?
1⁄2 H 2 O) and octahydrate (H 2 SO 4 ·8H 2 O). 4 is a very polar liquid, having a dielectric constant of around 100. It has a high electrical conductivity, caused by dissociation through protonating itself, a process known as autoprotolysis.