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Chemistry, 23.06.2019 14:40
Uuestons niuthe no. of millimoles of hcl required to neutralize 10 ml of 0.2 m na2co3 is(a) 2.0 m mole(b) 4.0 m mole(c) 0.2 m mole(d) 0.4 m mole
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Chemistry, 23.06.2019 22:30
Acompound consisting of b, n, and h undergoes elemental analysis. the % composition by mass is found to be 40.28% b, 52.20% n, and 7.53% h. what is the empirical formula for this molecule? enter in the empirical formula in the form bxnyhz
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Chemistry, 24.06.2019 00:30
The ksp of srso4 is 3.2 × 10–7. what is the equilibrium concentration of sulfate ion in a 1.0-l solution of strontium sulfate to which 0.10 mol of sr(ch3co2)2 has been added? a. 3.2 × 10–8m b. 3.2 × 10–6m c. 5.7 × 10–4m d. 8.0 × 10–4m
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