Chemistry Answers

Rank the following bonds from greatest to least polarity using electronegativity values and draw the dipole symbol applicable.

S-O

S-Cl

S-S

S-N

Anhydride 2-methylhexanoic pentanoic structure

How many number of atoms does contain in 7g KOH(POTASSIAM HIDRO OXIDE)?

For the hypothetical reaction A + B ==> Products, the following initial rates of reaction have been measured for the given reactant concentrations.

What is the rate law expression for this reaction? Solve the problem. Show your work.

Test 1 = [A](M) 0.010, [B](M) 0.020, Rate (mol/(L x hr)) 0.0120

Test 2 = [A](M) 0.015, [B](M) 0.010, Rate (mol/(L x hr)) 0.010

Test 3 = [A](M) 0.010, [B](M) 0.020, Rate (mol/(L x hr)) 0.005

Balance the REDOX reaction

1. K₂Cr₂O7+ H2O ------- SO₂+ KOH +Cr₂03

2. FeSO4 +KI + KCLO3 ------- Fe(OH)2 )K2 SO4 + 12

How many moles of gas are in a 30 liter scuba canister if the temperature of the canister is 300 K and the pressure is 200 atmospheres?

Calculate the ratio of ammonium chloride to ammonia that is required to make a buffer solution with a pH of 9.00. The Ka for ammonium ion is 5.6 x 10-10.

IF you accidentally fill the the volumetric flask above the graduation mark ,it it okay to simply remove the extra volume with pipet true or false?

1. To make a 0.50 M solution, how many moles of solute will be needed if 12.0 liters of solution are required?