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Explain how many moles of solid Ba(N03)2 should be added to 300ml of 0.20 MFE(N03)2 to increase the concentration of the N03 ion to 1.0M. show steps?
When separated from a water solution, CuSO4 forms a hydrate with 5 water molecules per formula unit. If 38 g of anhydrous CuSO4 are dissolved in water, what mass of the hydrate could be recovered from the solution?
how many grams of sodium formate nacho2 must be added to 750.0ml of .250 m of formic acid hcho2 to obtain a buffer with
predict a shape of small organic molecules that could bind tightly with G4. Be sure to explain your reasoning in terms of the measured distances and discuss the likely intermolecular forces involved in the interaction.
water expands when it freezes. How much work is done by 100g of water expanding as it freezes at 0 degrees Celsius and pushes back the wall of a pipe that exerts 1070 atm of pressure?
propose a synthesis of teflon (polytetraflauroethlene). What starting materials are required? What type pf reaction would be used to achieve polymerization
To find the volume of flask B, the gas is transferred to it where the pressure is 68.5 kPa at a temperature of 27.9 oC. What is the volume of flask B
An empty beaker has a mass of 38.112 g. 10.00 mL of ethyl alcohol are placed in thte beaker and the mass of the beaker with ethanol is found to be 45.268 g
A flask contains a small amount of liquid at 25oC. The vapor pressure of the liquid in the flask is 109 torr. If the volume of the flask were to double
if 2.0 g of helium gas and 5.46 g of oxygen gas are mixed togeher, what is the mole fraction of helium in the solution?
it takes 10.00 ml of sodium hydroxide aq to titrate 6.216 g of khp hkc8h404 in water m.w.khp 204.32gmol to the
The cost of the salt is $1.92 for 10 kg. A rich new source of CaCl2 was discovered and mined at $1.49 for 10 kg. Which salt is more cost effective?
Compute the molar mass that would be obtained from the actual experimental data under the subsequent conditions. The unknown is methyl propyl ether (CH3OC3H7) which has a vapor pressure of 375.2torr at room temperature, 20C.
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