# What is the volume of 5.0 moles of 02 at STP?

The volume of 5.0 moles of 02 at STP is 100 litres.

### If 5.0 g of kclo3 is decomposed what volume of o2 is produced at stp?

The equation is represented as for figuring moles of O2 produces is as follows: 5g KClO3 * mol KClO3 * 3 mol O2 = 50 moles O2 122.55g KCLO3 2 mol KClO3 817 Now that we know the number of moles, we can use the ideal gas equation to solve for the volume: PV=nRT At STP, P= 1 ATM, and T= 0 degrees Celsius/273.15 K The gas constant, R= 0.082057 L*ATM/mol*K 1 ATM * V…

### What is the concentration of a solution prepared by mixing 50 g of salt with 200 mL of water?

If by salt, you mean NaCl, then 50 g NaCl x 1 mole NaCl/58.4 g = 0.856 moles 0.856 moles NaCl/0.2 kg= 4.28 molal = 4.28 m = 4.3 m (2 sig figs) NOTE: You cannot calculate the molarity (M) without knowing the final volume. Adding 50 g salt to 200 ml will NOT end in a final volume of 200 ml. It will be somewhat greater than that.

### What is the concentration of excess H2SO4when50cm3 of 0.200moldm-3 NaOH is added to 40cm3 of 0.250 moldm-3 H2SO4.?

moles H2SO4 = 0.040 L x 0.250 mol/L = 0.01 moles H2SO4moles NaOH = 0.05 L x 0.200 mol/L = 0.01 moles NaOH Reaction: 2NaOH + H2SO4 = Na2SO4 + 2H2O It takes 2 moles NaOH for each 1 mole H2SO4 Moles H2SO4 used up by 0.01 moles NaOH = 0.005 moles moles H2SO4 remaining = 0.005 moles H2SO4 Total volume = 50 cm3 + 40 cm3 = 90 cm3 = 0.090 L Final [H2SO4]…

### Want to make a 50 mM NaOH solution with 5 M NaOH?

50 mM NaOH solution means that there are .050 moles of NaOH for each liter or solution. Likewise for 5 M meaning 5 moles per liter. So, 5 moles/liter * 1 liter = 5 moles. So you have 5 total moles of NaOH. You want to use that to make a 50 mM solution. In order to dilute 5 moles/liter down to .050 moles/liter, you have to add water. For example, if you only want…

### What is the volume of 50.0 g of ether if the density of ether is 70g per ml?

Well to get density you have to devide mass by volume: Density= Mass Volume Since you are given the mass and the density and you are looking for volume, simply fill in the bits of information you have into the equation above. 70= 50 Volume (take volume as X) Then cross multiply to get the volume: 70X=50 X=50/70 X= 0.714