CHEM HW NEED IN 10 MINUTES (JUST 4 QUESTIONS)

ANSWER QUESTIONS: 1. Consider the reaction: NiCl2·6H2O + 3en → [Ni(en)3]Cl2 + 6H2O You start with 1.02 mol of NiCl2·6H2O and 2.70 mol of en (en = H2NCH2CH2NH2). What is the theoretical yield of [Ni(en)3]Cl2 ?\ 2.Consider the reaction: NaHCO3(aq) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) 0.056 moles of NaHCO3 are reacted with excess HCl. 2.267 g of CO2 were produced. What is the percent yield of CO2? 3. Consider the reaction: NaHCO3(aq) + HCl(aq) → NaCl(aq) + CO2(g) + H2O(l) 0.082 moles of NaHCO3 are reacted with excess HCl. What is the theoretical yield (in grams) of CO2? 4. You measure out 4.4 mL of an aqueous ethylenediamine (H2NCH2CH2NH2) solution. This aqueous solution has a density of 0.950 g/mL and is 25.0% by mass ethylenediamine. How many moles of ethylenediamine are in the 4.4 mL?