Answer:
Explanation:
6.023 × 10²³ atoms of Ca are in 1 mol of Ca
Answer:
2.31÷ 0.790= 2.9240506329
Answer: 3.0 m kno3 solution and 1.3 m nacl
Concentration is count by the number of molecules divided by the volume. When mixing two solutions, the number of molecules wouldn't change but the volume is increased.
The volume of both solutions is same. Let say the volume is V. When the solution mixed, the volume becomes 2V. The concentration of both solutions will be half of its original concentration.
Answer:
3.45*10^-29
Explanation:
E=hv
h is Planck's constant and v is the frequency (which was given to us)
E=6.626*10^-34 * 5.21*10^4
E=3.452146*10^-29
Answer:
3 mol AlCl₃.
Explanation:
Hello!
In this case, according to the specified reactants and products, it is possible to set up the following balanced chemical reaction:
Whereas we evidence the 1:3 mole ratio between aluminum nitrate and sodium chloride; thus, since different moles were reacting, we need to identify the limiting reactant by computing the moles of AlCl₃ produced by each reactant as follows:
Thus, we infer that NaCl is the limiting reactant as it produces the fewest moles of AlCl₃; consequently the produced amount of this product is 3 mol.
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