lester

in making a solution of an unknown solid substance to test it for the presence of ions, would it matter if you used pure water or tap water to make the solution

Good pm, please help me to my homework. Thank you How to calculate an ordinary interest given a principal rate of 500,00 , at a rate of 18%, that will be due within 394 days? Find the ordinary interest

a 3300 mf capacitor recquired to store 0.5mj of the energy.find the potential difference to which the capacitor must be charged?

5.5L of a gas at STP is depressurized to 0.5 atmospheres and heated to 303K. What will be its new volume?

same question above, but calculate the magnitude of the net force that each charge experiences.