Concentrated H2SO4 is 96 %.( In laboratory )
As density of concentrated H2SO4 is 1.84gm/ml we will need this number as well, and as the Atomic Mass of H2SO4 is 98.08,as it is dibasic for normality it is 49
hence,
Calculation=((96/100)(1000)(1.84))/49=36.04
If H2SO4 concentrated is 36.04 M then for make a 1L solution of 1M H2SO4
(36.04)X (x) = 1X(1)
x = 1 X(1) / (36.04)
x=0.0277gm/ml of water
x = 27.7 mL of 36M H2SO4 per liter
Hence for 1N H2SO4 dissolve 27.7ml of it to 1000ml of solvent(Water)
that means for 0.1 N H2SO4 2.77 ml of it to 1000mL of solvent.
Remember M1V1=M2V2. (M is for molarity. V is for volume.)So:0.25M x V1 = 0.50 M x 0.050 LV1 = 0.50 M x 0.050L / 0.25 M = 0.1 LWait! You need it in mL so 0.1 L x 1000 = 100 mL
To calculate the amount of KCl needed, we first need to find the number of moles of KCl required using the formula: moles = Molarity x Volume (in L). Then, we convert moles to grams using the molar mass of KCl, which is 74.55 g/mol. Finally, we use the formula: grams = moles x molar mass to find that approximately 6.33 grams of KCl are needed to prepare 125 mL of a 0.720 M solution.
The molar weight of NaOH is 39.9971 g/mol. .15g is 3.75 millimoles. The reaction of H2SO4 and NaOH is H2SO4 + 2 NaOH --> Na2SO4 + 2 H2O. So the molar ratio of H2SO4 to NaOH is 1:2. So it takes 1.825 millimoles of H2SO4. Volume = molars/concentration. Then it takes 14.96 mL of H2SO4.
To calculate the percent by volume, add the volumes of ethanol and water together (45 mL + 125 mL = 170 mL). Then determine the percentage of ethanol in the total volume by dividing the volume of ethanol by the total volume and multiplying by 100 (45 mL / 170 mL * 100 ≈ 26.47%). Therefore, 45 mL of ethanol dissolved in 125 mL of water represents approximately a 26.47% ethanol solution by volume.
The final volume of the solution is 375 mL (125 mL HCl + 250 mL water). As the water does not contribute to the molarity of the solution, the moles of HCl remain the same. Thus, the molarity of the final solution is 0.251 mol / (0.375 L) = 0.670 M.
125 ml 500(ml) * 0.05 = 25 25 / 0.20 = 125
125 percent into a percentage = 125%
98 is 78.4 percent of 125 122.5 is 98 percent of 125
No such thing as HSO in chemistry. If you're referring to H2SO4, which is sulfuric acid, then 125 grams of it would be: H2SO4 = 98g/mol; 98/1=125/x; solve for x to get about 1.28 moles.
125 percent percent of 48 = 0.6
125 percent of 215000 = 268750
125% = 1.25
Answer this question…What is 75 of 125 as a percent?
92% = 0.920.92 * 125 = 115
30 percent of 125 = 125 *30/100 = 37.5 125 - 37.5 = 87.5
10 + (125 percent) = 22.5
80 percent of 125 is 100.