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To neutralize 15.8 mL of 0.687 molarity sodium hydroxide, how much 0.376 molarity HCl is needed? (5 points)
____HCl(aq)+____NaOH(aq)→____NaCl(aq)+____H(OH)(l)
To precipitate all the sulfate ions from 22.0 mL of 0.150 molarity aluminum sulfate as barium sulfate, how many mL of 0.250 molarity3. barium nitrate are required? (8 points)
____Ba(NO3)2(aq)+____Al2(SO4)3(aq)→______BaSO4(s)+____Al(NO3)3(aq)
When 200 mL of 0.700 molarity silver nitrate is introduced to 150 mL of 0.500 molarity potassium chromate, how many grams of silver chromate will precipitate? (12 points)
____ AgNO3(aq) + ____K2CrO4(aq) → ____Ag2CrO4(s)+ ____KNO3(aq)
An object displaces 2.3×10-³ m-³ of water when totally immersed into it. What is the bouyant force exerted by water? What is the density of the object in its mass is 26 kg? Of what material is the object was made of?
3. Give the no. of protons, electrons, and neutrons in neutral atoms of the following isotopes: (2 points each) (a) 73Li (b) 12552 Te (c) 147 Ag
Calculate the equilibrium concentration of the nonionized acids and all ions in a solution that is
0.25 M in HCO2H and 0.10 M in HClO.
Kindly calculate ΔE , the q and w for the following processes of an ideal gas going from State 1 to State 2.
State 1
a) P= 2.50 atm V=8.97 L T= 273.15 K
b) P= 2.50 atm V=15.5 L T= 473.15 K
c) P= 1.45 atm V=15.5 L T= 273.15 K
State 2
a) P= 2.50 atm V=15.5 L T= 473.15 K
b) P= 1.45 atm V=15.5 L T= 273.15 K
c) P= 2.50 atm V=8.97 L T= 273.15 K
What is the mole fraction of HCl in an aqueous solution that contains 44.2 grams HCl and 88 grams H20?
what is the molarity of 3.0 moles of NaCl dissolved in 2000 g of water has a concentration of 1.5 m NaCl water solution.
4. Consider the following reaction: C12H22O11(s) -----------> HH2O(g) + 12C(s). The rate of decomposition of C12H22O11 is 0.75 mol/min. What mass of C is produced in 10 seconds?
