Find the enthalpy of solution of kbr expressed in kilojoules
. A 5.00 g sample of KBr at 25.0°C dissolves in 25.0 mL of water also at 25.0°C. The final equilibrium temperature of the resulting solution is 18.1°C. What is the enthalpy of solution, ΔHs of KBr expressed in kilojoules per mole?
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When a 10.00 mg sample of the unknown compound was combusted, it produced 16.27 mg of CO2, 5.55 mg of water, and 7.90 mg of SO2. What is the empirical formula of the unknown compound?
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The final equilibrium temperature of the resulting solution is 18.1°C. What is the enthalpy of solution, ΔHs of KBr expressed in kilojoules per mole?
If 750.0 mL of 0.806 M NaClO is mixed with excess ammonia, how many moles of hydrazine can be formed?
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Why were intelligence tests first developed? What are their features?How well do intelligence tests work?
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