sunieltaneja

The Specific gravity of mercury is 13.55. What is the specific weight of mercury?

zinc ii phosphate

What is the mass (in grams) of 9.11 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.03 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.58 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.06 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.72 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.32 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.94 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.24 × 1024 molecules of methanol (CH3OH)?

What is the mass (in grams) of 9.44 × 1024 molecules of methanol (CH3OH)?

What is the mass, in grams, of 9.58×1024 molecules9.58×1024 molecules of methanol (CH3OH)?

Sodium reacts with oxygen to produce sodium oxide. 4Na(s)+O2(g)→2Na2O(s)

1. How many grams of Na2O are produced when 93.7 g of Na reacts?

2.If you have 15.0 g of Na, how many grams of O2 are required for the reaction?

3.How many grams of O2 are needed in a reaction that produces 72.0 g of Na2O?

how many grams are in 1.48 107 μg

percent abundance: isotopes

dN/dt = N dot, where N dot = -.01N so that d (lnN)/dt =-.01
I dont get their deduction? how did they come up with the so that"...." ??
Thanks

Copper has two naturally occurring isotopes, ⁶³Cu (isotopic mass 62.9296 amu) and ⁶⁵Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope? Report your answer to 5 significant figures.

(a)......................................% ⁶³Cu

(b).......................................% ⁶⁵Cu

Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope? it wants 2 answers one for Cu63 and the other for Cu65

Copper has two naturally occurring isotopes,63Cu (isotopic mass 62.9396 amu) and 65Cu (isotopic mass 64.9278 amu). If copper has an atomic mass of 63.546 amu, what is the percent abundance of each isotope?

The atomic mass of copper is 63.546 amu the masses of the isotopes of the naturally occurring isotopes of copper are 62.9298amu for (63)Cu and 64.9278amu for (64)Cu. Calculate the percent abundance of each isotope.

There are two stable isotopes of copper. Their masses are 62.9296amu and 64.9278 amu. If the average atomic mass of copper is 63.55,what is the natural abundance of the lighter isotope?

Copper is made up of two isotopes, Cu−63 (62.9296amu) and Cu−65 (64.9278amu). Given copper’s atomic weight of 63.546, what is the percent abundance of each isotopes?

What are the different factors on which the gravitational potential energy depends?

Potential energy that depends on height is called ________.

Which object will have greater kinetic energy? a) An object with 2 kg mass and 4 m/sec velocity. b) An object with 4 kg mass and 2 m/sec velocity

A ball rolling down an incline has its maximum potential energy at

1. The top

2. The halfway down

3. The quarter way down

4. The bottom

A 2-kg ball is held 4 m above the ground. What is its potential energy relative to the ground?

 A 10 kg block is raised vertically 3 meters. What is the change in potential energy? Answer in SI units closest to:

Consider a problem in which a car of the mass ‘m’ is moving on a road tilted at an angle from the horizontal. What will be the normal reaction of the surface?

A freight car having a mass of 15 Mg is towed along the horizontal track. If the car starts from rest and attains a speed of 8 m/s after traveling a distance of 150 m, determine the constant horizontal towing force applied to the car. Neglect friction and the mass of the wheels.