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Problem- You'd like to prepare a 250.0 mL of a 0.4570 M NaCl solution using a volumetric flask. What mass of NaCl will you need in grams?
You must show your work in an efficient manner so I can understand it in clearly
Carryout the following conversions. Report your answer to the correct number of significant figures
calculating theoretical yield for this experiment. It is a dehydration synthesis where one mol of hydrated salt yields 3 mol hydrates and 1 mol of anhydrous salt.
What will the volume of the gas be when dried and measured at STP ( vapor pressure of water at 32 degree Celsius=35.7 torr)
Draw and name all the possible constitutional and stereoisomers of the monochlorinated products formed by the free-radical chlorination of 2-methylbutane. Count any pair of enantiomers as two different products
if 0.701 g of aluminum reacts with an excess of hcl at 25 degrees c and 753 mm hg how many ml of hydrogen gas will be
when a weather balloon started to ascend the temperature was 28degc and the pressure 9064 kpa. if the maximum
To an insulated container with 100.0 g H20 (l) at 20.0 C, 175 g steam at 100 C and 1650 g of ice at 0.0 C are added. A) What mass of ice remains unmelted after equilibrium is established
The heat required to raise the temperature of a large cup of water (for coffee) from room temperature to boiling is approximately 100 kJ. Express this quantity of heat in kilocalories and British thermal units.
calculate the equivalent conductance of this electrolyte at the given concentration.the constant of the conductance cell was found to be 44.6 cm-1.
A 50.00 mL sample of ethanol was mixed with 10.00mL of 0.200M K2Cr2O7 solution and the resulting solution acidified sufficiently. Assume a constant pH of 0 throughout the procedure.
Using 2-butanone as an example, explain why this is true. Draw the structures of all of the products
A buffer is made by dissolving 0.037 mol of potassium fluoride in 135 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate the pH of the buffer.
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