An engineer is designing a new tank to hold hydrogen gas for use in an experimental vehicle’s fuel system.
The tank is to be made out of a special metal alloy that is much less dense than steel. The engineer needs to know whether or not the alloy will be strong enough
to hold a sufficient quantity of hydrogen under pressure. The specifications call for 1.20 x 10^3 L of hydrogen at normal atmospheric pressure, 101 kPa to be compressed into a 40.0 L tank made of light alloy. The alloy can readily withstand pressures up to
5050 kPa. Assuming constant temperature, calculate the pressure that will exist in a filled tank. Predict whether the alloy will be able to hold the hydrogen safely.
Support your prediction with calculations.

the correct answer is b. a strong acid completely dissociates to its ions when dissolved in water. completely dissociates to and ions. a is incorrect because does not fully ionize to and ions and some remain as the compound . c and d are incorrect because, and do not fall into the category of bronsted lowry acids. a bronsted lowry acid is a proton donor and since both molecules do not have a proton to donate they are not bronsted lowry acids. likewise,   if we use the lewis acid definition, they cannot be acids. a lewis acid is an electron pair acceptor. both and have a complete octet so can not accept any electrons which disqualifies them as acids.

percent abundance for cu-63 can be shown as:

63 x + 65 (1-x) = 62.9296

65 - 62.9296 = 2 x

x = 1.035

thus, percent abundance for cu-63 is 1.035

percent abundance for cu-65 can be shown as:

63 x + 65 (1-x) = 64.9278

65 - 64.9278 = 2 x

x = 0.0361

thus, percent abundance for cu-63 is 0.0361

the mass spectrum of cu-63 showing the intense peak as, this isotope is found in nature more abundantly around 92.38 % in comparison to cu-65 which is found 62.58 % naturally