5 g of magnesium powder is added into 100 cm3 of 0.5 mol dm-3 nitric acid, HNO3 to produce magnesium nitrate, Mg(NO3)2 salt. Mg + HNO3 → Mg(NO3)2 + H2 a) Calculate the number...

5 g of magnesium powder is added into 100 cm3 of 0.5 mol dm-3 nitric acid, HNO3 to produce magnesium nitrate, Mg(NO3)2 salt. Mg + HNO3 → Mg(NO3)2 + H2 a) Calculate the number...

I am needing help answering chemistry homework

How many moles of gas are in a 30.0 liter scuba canister if the temperature of the canister is 300 K and the pressure is 200.0 atmosphere? - Show Work

It is not safe to put aerosol containers in a campfire because the pressure inside gets very high and they can explode. If a 1.00 liter canister holds 2.00 moles of gas and the temperature of the...

How many moles of gas does it take to occupy 120.0 liters at a pressure of 2.30 atmospheres and a temperature of 340. Kelvin? - Show Work

If I have a 50.0 liter container that holds 45 moles of gas at a temperature of 200 degrees Celcius, what is the pressure inside the container? - Show Work.

Calculate 8.82 mol of sulfur trioxide at STP

If the mole fraction of K2SO3 in an aqueous solution is .0328, what is the weight/weight % (percent by mass) of K2SO3?

What is the mole fraction of NaOH in an aqueous solution that contains 15% NaOH (weight/weight%)?

How many L of NaNO3 would I need to add?

What is the mole fraction of LiF in an aqueous solution that contains 39.4% LiF (weight/weight %)?

i really just don't understand how to do these problems :/

The equation is C2H5OH(aq) + CH3CO2H(aq) ? CH3CO2C2H5(aq) + H2O(l) Moles of ethanol: 0.0747 Moles of ethanoic acid: 0.0112 amount of ethanol...

I'm having a hard time with my chemistry lab, please help!

A 0.25mol sample of a certain substance has a mass of 10g, what is the molar mass of this substance? Which element has the same molar mass?

Answer the following questions pertaining to the reaction below. W(l) + 3 X(g) ® 2 Y(g) + 3 Z(g) Determine the number of moles of substance W required to produce 3.50 L of...

Calculate the amount of lime that can be produced by heating 100g of 90% pure Limestone

The molar mass of aspirin is 180.16 g/mol. What is the theoretical yield in grams, for the aspirin she theoretically obtained above using 4.02 g of SA? What is the percent yield?

According to the following reaction, how many moles of hydrogen gas will be formed upon the complete reaction of 0.235 moles hydrobromic acid? hydrobromic acid (aq) hydrogen (g) + bromine...

What is the amount in moles of nitrogen gas found in a 58.0 L compressed gas tank that has a pressure of 89.3 atm at 357 K?