08/01/20
1.Calculate the mass of sodium hydroxide needed to be weighed to prepare 500 ml of a 0.1 M NaOH solution ?
2. The NaOH solution in question 1, was prepared. It’s then standardized by titrating it against 0.5688g of potassium acid phthalate, which is a primary standard acidic substance (KHP = molar mass...
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06/30/20
What is the mass, in kg, of 2.75 liters of the liquid glycerol, which has a density of 1.26 g/ml?
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06/28/20
Atomic radius arrange from largest to smallest atomic radius
Arrange the elements according to atomic radius largest -smallest radius ArNaSClMgSiAlP
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05/21/20
A sample of helium has a volume of 521 L at a pressure of 75 mm Hg and a temperature of 18°C. When the temperature is increased to 23°C, what is the volume of the helium?
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05/07/20
A rectangle has a perimeter of 72 inches. The length is 3 inches more than twice the width. What is the length of the rectangle in inches? 11 22 25 36
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05/06/20
What type of solution would be created if 100 grams of sodium chlorate was dissolved in 100 g of water at 40 degrees Celsius?
A. PlacatedB. SaturatedC. UnsaturatedD. Supersaturated
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05/06/20
What is the molarity for a solution that is composed of 80.00 grams of sodium hydroxide dissolved in 2.0 L of water?
1.0 M2.0 M4.O M40.0 M
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05/06/20
How many moles of NaCl are required to make a 0.15 M solution from 175 mL of water?
A. 0.008 molB. 0.026 molC. 0.850 molD. 26.25 mol
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