Izzie

Determine the final pressure of a gas that has an initial pressure of 1.00 atm and is heated from 20 °C to 30 °C. Round to the nearest hundredth. Don't forget the units.

If 0.274 moles of a substance weighs 62.5g, what is the molar mass of the substance? 62.5/0.274 = 228.1 Am I on the right track?

A student made a determination of the empirical formula ot tungsten oxide (WO) produced by the total ignition of air of a smaple of metallic Tungsten. From the lab: Weight of crucible 11.120g weight of tungsten 8.820 weight of crucible and product (WO) 22...

C2H5O2N is an important compound. The combustion reaction of glycine proceeds according to this equation: 4C2H5O2N + 9O2 ---> 8Co2 +10H2O +2N2 which is = -3857 kJ Given CO2 is -393.5 kJ/mol Given H2O is -285.6 Calculate the standard molar enthalpy of form...

What was the unanswered question of the Nullification Crisis A). does the federal government have absolute power to place traffic as goods? B). does the state have the right to mullfiy other states laws? C). Does the fedrl government or do the states have...

The first and second terms of an exponential sequence (GP) are respectively the first and third terms of a linear sequence (AP) . The fourth term of the linear sequence is 10 and the sum of it's first five terms is 60. Find the first five terms of the lin...

10 x ( 7 + m )

M = 2.691 if diprotic, =134.6 Is this correct?

I just worked the problem and got 79% for W and 21% for O. For the empirical, I got WO4. Is this correct?

What I have looks like this: 4X +9(0) - 8(-393.5) +10(-285.8) +2(0) Products - Reactants with 0 being the natural elements 4X - -6003 does not get me the answer so what am I doing wrong?

I chose B for 1

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