General Chemistry Answers

How many moles of carbon are in 2.5g of ethanol? 

Sodium reacts with water to produce hydrogen gas and sodium hydroxide. How many grams of H_2(g) are produced when 5.0 g Na reacts with 100.0 g of water? 

What mass of oxygen will react with 7.75 g of P4?

For the reaction, H2O(l)⟶H2O(g), calculate ΔG at a) 20oC, b) 100oC and c) 150oC.

calculate ΔG at a) 20oC, b) 100oC and c) 150oC.

What volume of a 0.250 M KOH will be required to neutralize 5.25 ml of 0.300 M H3PO4? Write the balance chemical equation.

What will the volume of a sample be if 335 mL of an ideal gas at 24 °C and 1.08 atm is cooled to 17 °C and 0.976 atm?

When adding 127.345 and 1.3 ,the results on the calculator is 128.645.round the answer to the appropriate precision based on the precision of the numbers in the sum

You have taken measure four times.To demonstrate that your measurement is repeatable ,is it more desirable that there is a low standard deviation or high standard deviation?

Calculate standard deviation using Bessel correction of the three values given below

21

22

23