1.Which substance has the highest molar mass? Tungsten
Lead
Xenon
Barium
2.At standard temperature and pressure, how many liters of gas are in one mole of that gas?
2.4 L
10.0 L
22.4 L
100.0 L
3. Given the reaction: H₃PO₄ + 3 KOH → K₃PO₄ + 3H₂O If I have 25.0 g of KOH, how much potassium phosphate should I end up with?
4. in the last question, what is the percent yield if I end up with 28.0 g of product?

Select the correct answer from each drop-down menu. describe what happens to a carbon-11 atom when it undergoes positron emission. the decay of a carbon-11 atom _1_, and this causes it to emit _2_.options for 1: > changes a neutron into a proton> changes a proton into a neutron> is hit with a neutron> reconfigures its protons and neutronsoptions for 2: > a negatively charged electron-sized particle> a positively charged election-sized particle> two atoms and several neutrons> two neutrons and two protons

Which of the following represents the ester functional group? a. -coo- b. -cho c. -cooh d. c=o

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?