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I assume you mean 7.25 M KOH, but the process is the same anyway.
Molarity = moles of solute/Liters of solution ( 400 ml = 0.4 Liters )
7.25 M KOH = X moles KOH/0.4 Liters
= 2.9 moles KOH (56.108 grams/1 mole KOH)
= 163 grams potassium hydroxide needed
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∙ 11y ago
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What is the molarity of 23.1 g of NaCl in 725mL of solution?
mass/Mr = [conc] x vol(mL) / 1000 23.1 / 58.5 =[conc/M] x 725 ml/ 1000 [conc/M] = (23.1 x 1000) / (58.5 x 725) conc/M = 23100 / 42412.5 conc/M = 1.836 M NB Mass/ Mr = moles. '1000' is used to convert 'mL' to dm^3(litres).
How many milliequivalents of a chloride ion are in .725 grams of chloride?
20.5
What volume will 400 ml of argon gas initially at 30 degree celsius and 725 mmHg occupy at 30 degree celsius and 650 mmhg?
The volume is 0,446 L.
What mass of carbon dioxide is present in 1.00 m3 of dry air at a temperature of 25 ∘C and a pressure of 725 torr ?
113 PSU
What will be the pressure of a sample of 48.0 grams of oxygen gas in a glass container of volume 5.2 L at 25 degrees Celsius?
Molar Mass O2: 32.00, Molar Mass CO2: 44.01, T= 21C+273= 294Kelvins V=5.00 L Grams of O2=20.0 so moles O2= 20.0g/32.00g=.625g/mol Grams of CO2=4.4 so moles CO2= 4.4g/ 44.01=.1 Total moles: .625+.1= .725 mols (this is n) Ideal Gas Law: PV=nRT....Rearrange and solve for pressure. P=nRT/V.....R is the constant which is equal to .08206L*atm*mol P=(.725)(.08206)(294K)/(5.00L) P= 3.5atm
How do you make 7.25 an improper fraction?
7.25 = 725/100 = 29/47.25 = 725/100 = 29/47.25 = 725/100 = 29/47.25 = 725/100 = 29/4
A compact car with a mass of 725 kg is moving at 30 ms. What is its momentum?
Momentum is the product of mass and velocity, so just multiply both valuesIF THE UNITS ARE APPROPRIATE.:725 kg X 30 m/s = 21,750 kg-m/s.(If the mass of the car were 725 slugs and it was moving at 30 miles per hour,then you could not just multiply those numbers.)
A compact car with a mass of 725 kg is moving at 30 ms what is its momentum?
Momentum is the product of mass and velocity, so just multiply both valuesIF THE UNITS ARE APPROPRIATE.:725 kg X 30 m/s = 21,750 kg-m/s.(If the mass of the car were 725 slugs and it was moving at 30 miles per hour,then you could not just multiply those numbers.)
How many complete revolutions are needed to draw the angle 725?
Two complete revolutions.
What is the percent of 725?
725 = 72500%725 = 72500%725 = 72500%725 = 72500%
How much money does CEOs make?
700 to 725
What is 12 percent of 725?
12% of 725= 12% * 725= 0.12 * 725= 87
What is 92 percent of 725?
92% of 725= 92% * 725= 0.92 * 725= 667
How much money does airbus CEO make?
700 to 725
What goes into 725?
725
What is 725 as a decimal and fraction?
725 as a decimal and fraction = 725.0 ; 725/1
725 is 15 percent of what number?
725 = 0.15x 725/0.15 = 4833.33333
