Answer:
40 mL
Explanation:
Volume=400g/10(g/mL)
= 40mL
hope this will help you ❤️
Answer:
HgBr₂.
Explanation:
- To determine the empirical formula of the mercury bromide that is produced, we should calculate the no. of moles of Hg (1.750 g) and Br (1.394 g) used to prepare the mercury bromide.
no. of moles of Hg = mass/atomic mass = (1.75 g)/(200.59 g/mol) = 0.00872 mol.
no. of moles of Br = mass/atomic mass = (1.394 g)/(79.904 g/mol) = 0.01744 mol.
- We divide by the lowest no. of moles (0.00872) to get the mole ratio:
The mole ratio of (Br: Hg) is: (2: 1).
<em>So, the empirical formula is: HgBr₂.</em>
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Answer:
The reaction is zero order with respect to B
Explanation:
The reaction given in the question is -
2A + 3 B ----> 2C + D
From , the above reaction the rate law is written as -
rate = k [ A ]²[ B ]³
where ,
k = rate constant
In the above equation the order is determined by the sum of the powers of the concentrations , i.e. 2 + 3 = 5 order , which never possible ,
Hence , in the question ,
The by changing the concentration of B , the rate does not change .
hence , the rate is independent of the concentration of B .
Therefore ,
The order with respect to B will be zero .
Since there are no choices provided for this question, the answer to why many scientists reject the cold fusion theory is that the experiment by Fleischmann and Pons that had the strongest claim was found out to be flawed. Many scientists who also replicated the experiment failed to obtain positive results which further weakened the claim for cold fusion theory.
Answer:
yes
Explanation:
sodium is salt and you can get it in the store or anywere.
