Answer:
8.934 g
Step-by-step explanation:
We know we will need a balanced equation with masses and molar masses, so let’s gather all the information in one place.
M_r: 192.12 44.01
H₃C₆H₅O₇ + 3NaHCO₃ ⟶ Na₃C₆H₅O₇ + 3H₂O + 3CO₂
m/g: 13.00
For ease of writing, let's write H₃C₆H₅O₇ as H₃Cit.
(a) Calculate the <em>moles of H₃Cit
</em>
n = 13.00 g × (1 mol H₃Cit /192.12 g H₃Cit)
n = 0.067 67 mol H₃Cit
(b) Calculate the <em>moles of CO₂
</em>
The molar ratio is (3 mol CO₂/1 mol H₃Cit)
n = 0.067 67 mol H₃Cit × (3 mol CO₂/1 mol H₃Cit)
n = 0.2030 mol CO₂
(c) Calculate the <em>mass of CO₂
</em>
m = 0.2030 mol CO₂ × (44.01 g CO₂/1 mol CO₂)
m = 8.934 g CO₂
• a fuel gas consisting mainly of carbon monoxide and hydrogen, made by passing steam over incandescent coke
• the cranium and the mandible.
hope it helps...!!!
An autoclave would often be used by Microbiologists. Or laboratory instructors working in the microbiological setting.
Answer:
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Explanation:
Find the value of the following expression using suitable properties of whole numbers
and name the property used.
789 × 175 – 75 × 789
Answer:
On the explanation.
Explanation:
Hello,
a. At first there exist an active site on the enzyme with a specific tertiary constitution, which is done by means of the hydrogen bonding gathering the amino acids in the primary structure. Such 3D structure brings to bear that only one substrate with complementary shape can dovetail to the aforesaid active site forming an enzyme substrate complex.
b. However, pH is a measure of hydrogen concentration present in the solution. Now, by considering that into the structure of the enzyme and its active sites are held by hydrogen bonds, varied concentrations of hydrogen ion can cause a decrease or increase of the ions, this could turn out in the diminishing of bonds numbers or the breaking of bonds, which could affect the shape of the enzyme's active site.
c. Next, the temperature has a directly proportional relationship with the enzyme molecule kinetic energy. Thus, high-order vibrations at high temperatures could promote the breaking of and cause the active site of the enzyme to be denatured. On the contrary, low temperatures causes both the enzyme and substrate to have low kinetic energy so the reaction could not be attained.
d. The active sites have a slight capacity to shape around multiple substrates, not just one, it means that similar substrates could bind with the active site and occupy the enzyme, consequently, there are less enzymes to react with, causing a halting in the chemical reaction.
Best regards.