Search & Filtering
How much heat (kJ) is required to convert 50 grams of ethanol into its vapor or gaseous form? How much heat is released if the same amount of vaporized ethanol is available to return to its liquid form?
How many moles of potassium ions are in solution when 47.12g of K3PO4 is dissolved in water?
The decomposition of magnesium carbonate forms 15 grams of magnesium oxide (MgO) in an experiment based on this equation : MgCO3 MgO + CO2 . Solve for percentage yield
calculate how many moles of product form when 1.75 mol of the reactant completely reacts 2S(s)+3O2 yields 2SO3(g)
A buffer is formed by mixing Hypochloric acid(HClO) and Sodium Hypochlorite.
If HCL is added which buffer component will react with the Hydrogen ion? Answer is =ClO-
Then, Write a balanced equation for the reaction between OCl- and Hydrogen ion H+
How many mL of 0.624 M barium nitrate are required to precipitate as barium sulfate if all the sulfate ions are from 246.881 mL of 3.906 M aluminum sulfate?
Based on the formula and geometries of the substances, are the molecules that can hold more drops
on the coin polar or nonpolar? What about those that took longer to evaporate?
How much energy in KJ is needed to raise the temperature of a 55g sample with a specific heat 0.897 J/gk from 22.4* C to 94*C?
Determine the specific heat of a material if a 35g sample absorbed 48 K as it was heated from 293 k to 313 k.
Calculate the concentration of each ion in each of the following mixed solutions in which no reaction occurs. a. 200mL of 0.6M AlBr3 mixed with 300mL of 0.4M BaBr2 b. 6.4g of NaCl and 5.2 g of KCl dissolved and made up to 250mL
