• How many atoms in 4.3 grams of C_6H_6

• How many moles are in phosphorus atom

• what is the mass in grams of 1000 atoms of kryptons

• a sample of carbon monoxide occupies 3.48 L at 298 K and 745 torr. find its volume at -14C and 367 torr

• How many structural formulas are there of all aldehydes having the molecular formula C6H12O?

• if zn original mass is 1.4g, what's mass of ZnCl2 to produce a reaction

• A chemist wants to prepare 0.48 M HCl. Commercial hydrochloric acid is 12.4 M. How many milliliters of the commercial acid does the chemist require to make up 1.48 L of the dilute acid?

• find the molarity of an unknown NaOH solution if 0.5536 g of the KHP required 37.00 mL of a NaOH solution.

• If 145 grams of potassium nitrate were added to water to make 1,500 mL of solution, what would be the molarity of the resulting solution?

• pka of NH4CL

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