1. A weather balloon is filled with helium on a cool morning when the temperature is 13.0°C. The temperature is predicted to reach 35.0°C around 4 PM. When first inflated, the balloon has a volume of 12.9 L and is at 238 kPa – these are the standard volume and pressure for this type of weather balloon. Based on the balloon design, it can only withstand pressures up to 252 kPa. • How many moles of helium are in this hot air balloon?

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.

Sulfuric acid is a polyprotic acid. write balanced chemical equations for the sequence of reactions that sulfuric acid can undergo when it's dissolved in water.