Inorganic Chemistry Answers

Which of the following would be described as chemical property(ies) of sodium periodate, NaIO4? (1) The crystal is tetragonal in shape. (2) The density is 3.865 g/cm3 at 16◦C. (3) Its solubility in water at 50◦C is 37 g/100.00 g H2O. (4) It reacts with ethylene glycol. A. (1),(2) B. (2),(4) C. (1),(3) D. (4) E. (1)(2)(3)(4)

1. how many grams of the solid can be dissolved in 25g of water at 40c?
2. assuming that at 40 c, the volume of the solution is equal to the volume of the water, what is the density of the solution formed above? (dh2o=1.00g/ml)
3. a student adds 35g of the substance to 72g of water at 25 c. will it all dissolve? if not, how much remains undissolved?

Propanoic acid (C₂H₅COOH) is described as a weak acid. Define the term weak acid.

Write a balanced chemical equation to show the dissociation of propanoic acid (C₂H₅COOH). Physical states must be included.

A solution of propanoic acid and sodium propanoate (C₂H₅COONa) behaves as a buffer. Describe the term buffer solution. No chemical equations are needed.

Write a balanced chemical equation to show the dissociation of sodium propanoate (C₂H₅COONa). Physical states must be included.

Explain how a solution containing propanoic acid and sodium propanoate can function as a buffer solution. Your answer must include balanced chemical equations, physical states included.

which of the following would be described as chemical property(ies) of sodium periodate, naio4?

(1) the crystal is tetragonal in shape.

(2) the density is 3.865g/cm^3 at 16C.

(3) its solubility in water at 50C is 37g/100.00g H2O.

(4) it’s reacts with ethylene glycol.

on a recent day the difference between the lowest temperature and the highest temperature of the day 9C. by how many degrees fahrenheit did the temperature change?

1. How scandium, a transition metal forms an ion with a noble gas structure.
2.  How the effective nuclear charge changes as you move from left to right across the periodic table and why?
3. The information that can obtained from a symbol of an element in the periodic table

what is the most important factor responsible for haemoglobin to act as oxygen carrier

A 20. L container is filled with helium and the pressure is 150 atm and the temperature is 30.° C. How many 5.0 L balloons can be filled when the temperature is 22° C and the atmospheric pressure is 755 mmHg? 

Please solve these questions, I try a lot to answer all of them but I couldn’t answer it.

Thanks in advance.

Propanoic acid (C₂H₅COOH) is described as a weak acid. Define the term weak acid.

Write a balanced chemical equation to show the dissociation of propanoic acid (C₂H₅COOH). Physical states must be included.

A solution of propanoic acid and sodium propanoate (C₂H₅COONa) behaves as a buffer. Describe the term buffer solution. No chemical equations are needed.

Write a balanced chemical equation to show the dissociation of sodium propanoate (C₂H₅COONa). Physical states must be included.

Explain how a solution containing propanoic acid and sodium propanoate can function as a buffer solution. Your answer must include balanced chemical equations, physical states included.

___Fe2O3(s) + ___CO(g) à ___Fe(s) + ___CO2(g) 

How many grams of iron metal can be produced from the reaction of 10.0 grams of iron (III) oxide and carbon monoxide? 

How many grams of iron metal can be produced from the reaction of 10.0 grams of carbon monoxide with iron (III) oxide? 

Compare the amount of iron produced in parts a and b. Which is less? 

What is the limiting reactant? 

What is the excess reactant? 

What is the theoretical yield of iron in this reaction? 

How many grams of limiting reactant are unused when the reaction is complete? 

How many grams of the excess reactant are unused when the reaction is complete?