Calculate the number of moles of ag in 5ml of .004m agno3 and the number of moles of cr04 in 5ml of .0024m k2cro4
Why don't you just answer the question and help not beat people down I needed help with this problem too but couldn't find it because of you DrBob222.
To calculate the number of moles of a substance, you need to use the formula:
moles = concentration (in moles per liter) * volume (in liters)
Let's calculate the number of moles of Ag in 5 mL of 0.004 M AgNO3:
Step 1: Convert the volume from milliliters to liters.
5 mL = 5 / 1000 = 0.005 L
Step 2: Use the formula to calculate the number of moles.
moles of Ag = concentration of AgNO3 * volume of AgNO3
= 0.004 M * 0.005 L
= 0.00002 moles
Therefore, there are 0.00002 moles of Ag in 5 mL of 0.004 M AgNO3.
Now, let's calculate the number of moles of CrO4 in 5 mL of 0.0024 M K2CrO4:
Step 1: Convert the volume from milliliters to liters.
5 mL = 5 / 1000 = 0.005 L
Step 2: Use the formula to calculate the number of moles.
moles of CrO4 = concentration of K2CrO4 * volume of K2CrO4
= 0.0024 M * 0.005 L
= 0.000012 moles
Therefore, there are 0.000012 moles of CrO4 in 5 mL of 0.0024 M K2CrO4.
This may come as a shock to you but m and M don't mean the same thing. m stands for molality and M stands for molarity. I ASSUME you meant M and not m.
mols = M x L = ?
You might find the caps key on your keyboard and use it. K2CrO4 means something to me. k2cro4 doesn't.