Answer: 8.12 g NaCl
Explanation: Use Avogadro's number to find the number of m
moles of NaCl:
8.24x10²² molecules NaCl / 1 mole NaCl/ 6.022x10²³ molecules NaCl
= 0.14 mole NaCl
Next convert moles to grams NaCl using its molar mass;
0.14 mole NaCl x 58g NaCl / 1 mole NaCl
= 8.12 g NaCl
They seem to eat a lot ranging from woody plants to vines, though in the rainforest most of their diet is made up of Malaysia and plant material, to be more specific
So I would go with leaves, 50%
Flowers, buds, and insects, 10%
Fruits, 40%
--They also really like figs
A molecule of sucrose (C12H22O11) has 12 carbon atoms, 22 hydrogen atoms and 11 oxygen atoms. The subscripts also indicate the ratios of the elements.
Answer:
because it will control the birth of a child which can happen alot being overpopulated in the country or world. It also can mange their life and create a small and happy and healthy family.Also the child can get more love and support from their parents if they have less children and it wont be a taruma for the couple as well. because growing a child can be expensive time costly and really hard.
Explanation:
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Answer:
(E) -1835 kJ
Explanation:
Use Hess law to answer this question by manipulating algebraically the equations :
Eq .1 PCl5(s) → PCl3(g) + Cl2(g) ΔH°rxn = +157
Eq.2 P4(g) + 6 Cl2(g) → 4 PCl3(g) ΔH°rxn = -1207 kJ
to arrive to the equation in our problem:
P4(g) + 10 Cl2(g) → 4PCl5(s) ΔH°rxn = ?
Notice PCl₅ is the product in our equation and in Eq. 1 is a reactant so we need to reverse it. We need also to multiply it by 4 since that is the number required in the question.
P₄ in equation 2 is a reactant and is also a reactant in our desired equation also it is 1 mol in both. That is telling us to leave it as it is and we can then proceed to add it the the -4 times Eq1 and check everything is right when we add them together.
4PCl3(g) + 4Cl2(g) → 4PCl5(s) ΔH°rxn = -4 x (157 kJ) (change the sign)
P4(g) + 6 Cl2(g) → 4 PCl3(g) ΔH°rxn = -1207 kJ
___________________________________________
P4(g) + 10 Cl2(g) → 4PCl5(s) ΔH°rxn = -4 x (157 kJ) + -1207 kJ
ΔH°rxn = -1835 kJ
See how the PCl3 cancel and the Cl add correctly.