How much water in grams was actually removed
A student weighs out 10,000 grams of MgSO4 from a bottle. after heating, the sample was 5.720 g the chemical reaction that occurs upon heat a hydrate is: MgSO4 7H2O? How much water in grams was actually removed from heating?
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An aqueous solution that 2.10 in is slowly added from a buret to an aqueous solution that is 1.40×10-2 in and 0.250 in . When the second ion begins to precipitate, what is the remaining concentration of the first ion?
An unknown compound Y, C10H16, can absorb 2 equivalents of hydrogen gas to give 1-isopropyl-4-methylcyclohexane. The ozonization products are shown below. What is the structure of Y?
What are the advantages of strategic alliances and networks structures as recent innovations in organizational architecture?
Tarzan plans to corss a gorge by swinging in an arc form a hanging vine. If his arms are capable of exerting a force of 1400 N on the rope, what is the maximum speed he can tolerate at the lowest point of his swing? his mass is 80 kg and the vine
What is the pH of a solution prepared by mixing 25.00 mL of 0.10 M methylamine, CH3NH2, with 25.00 mL of 0.10 M methylammonium chloride, CH3NH3Cl?
A physiological saline solution contains 174mEq/L each of Na+ and Cl-. How many moles each are in 1.30L of the saline solution?
A sack of flour of mass 5.00-rm kg is lifted vertically at a constant speed of 3.50 m/s through a height of 15.0 m.How great a force is required? How much work is done on the sack by the lifting required? What becomes of the work?
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If a child's achievement is below what would be expected given their level of intellectual functioning (as derived from an IQ test such as the WISC-IV)
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