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how many molecules are contained in 23.5 for MOL of nitrogen gas, N2? Show all
work.
how many moles of hydrochloric acid are dissolved in 500 mL of a 6.3 solution? Show all work.
A student prepares a solution by dissolving 5.67 g of copper (II) chloride in 678 g of water. Determine the percent by mass of solute in the solution.
3. The geometrical representation of a vector v =
a
b
is an arrow starting at the origin and ending at the point (a, b).
Multiplication of a vector v with the matrix A =
cos θ − sin θ
sin θ cos θ
yields a vector p =Av
which is a counter clockwise rotation of v by an angle of θ.
a) Find the vector p that is obtained if v =
3
−4
is rotated counter clockwise by 40◦
.
b) Find the vector q that is obtained if v =
2
3
is rotated clockwise by 40◦
.
determine the percent composition by mass of each element in C6H12O6. Show all work.
using the following balanced equation how many moles of water will be produced a 4.25 miles of oxygen is totally consumed. Show all work.
4NH3+3O2=2N2+6H20
Big data come in the following forms…
a.
A and B.
b.
Computer - generated.
c.
Unstructured.
d.
Structured.
What are children literature materials?
Efforts that countries can adopt to promote inclusive school based restructuring
Determine L-1{es(s2-1/(s2+1)2)}
