Answer:
Solution temperature.
Explanation:
Hello there!
In this case, considering this question about chemical kinetics, it will be possible for us to analyze two perspectives:
1. Molecular: here, we infer that the solution temperature will provide more energy to the molecules in order to undergo more effective crashes which will make more products and therefore, increase the rate constant.
2. Mathematical: by means of the Arrhenius equation, it will be possible to tell that the increase in the temperature of the system, the negative of the exponent present in such equation will increase and therefore turn the rate constant bigger.
In such way, we infer the answer is solution temperature.
Regards!
ZnO(s) + 2HCl(aq) → ZnCl2 (s) + H2O(l)
Look at the moles:
1 + 2 → 1 + 1
How much ZnO do we need to make 50g of ZnCl2? Notice it is these numbers in () and should be 1:1
(1) + 2 → (1) + 1
So we need the same number of moles, but how many moles is 50g of ZnCl2? Zn weight is 65.38g, and Cl is 35.45g. So ZnCl2 is (65.38) + (2 X 35.45)=136.28g
50g/136.28g = 0.3669 moles
What is 0.3669 moles of ZnO now?
O weighs 16g/mol, so add 65.38 + 16 = 81.38
Multiply by 0.3669 moles and get how many grams we need.
Gravity is the solution!. We are lucky to have Jupiter in our solar system. Jupiter's gravity is strong enough to pull meteorites towards itself.
Answer:
5.00 g calcium chloride in 95.0 g of water. Solute? ... (4 pts) Calculate the grams of copper (II) nitrate needed to make 100.0 mL of a 3.50 M solution
Explanation:
Forensic scientists can compare DNA found at a crime scene (from blood or hair, for example) to DNA samples taken from suspects. If there is no match, they may be able to rule out that suspect. If there is a match, police will likely want to take a closer look.
