Questions asked by britt

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• How many grams of solute are needed to prepare each of the following solutions?
  
• The weak acid is represented by? Choose one: the gray and green spheres the gray and purple spheres the gray and yellow spheres
  
• What volume, in milliliters, of 0.530 M Ca(OH)2 is needed to completely neutralize 276 mL of a 0.220 M HI solution?
  
• How do you find sin (2theta) and cos (2theta) when given tan theta = -4 and sin theta <0 ?
  
• What is the maximum temperature of the water in the insulated container after the copper metal is added? (also steps on how to solve this problem please)
  
• Consider the neutralization reaction between CH3COOH and Sr(OH)2. Complete and balance the neutralization reaction, name the products, and write the net ionic equation.?
  
• Rearranged and Combined Equation:? Br(g)+O3(g) ------> BrO(g)+O2(g) Br(g)+2O2(g)-----> BrO (g)+O3(g)
  
• Baking soda decomposes on heating as follows, creating the holes in baked bread: Calculate the standard molar enthalpy of formation of NaHCO3(s) from the enthalpy of the baking soda decomposition reaction and the following information:?
  
• How much ice at 0°C [Cp = 37.1 J/(mol ·°C), ΔH°fus = 6.01 kJ/mol] must be added to return the solution temperature to [ . . . ]?