Diwakar Mandilwar

BIT SINDRI
Tutor

Biography

I am a mathematics,Chemistry,physics wizard.I have qualified Jee .I am currently pursuing courses from MIT and Harvard as well.

Education

BA Chemical Engineering
BIT SINDRI

Educator Statistics

Numerade tutor for 5 years
784 Students Helped

Topics Covered

Discover the Wonders of Chemistry: Your Introductory Guide
Mastering Chemical Reactions and Stoichiometry for Optimal Results
Exploring the Fascinating World of Thermochemistry | Learn More Today
Discover the Best Series to Binge-Watch | Your Ultimate Guide
Exploring the Chemistry of Nonmetals: Properties and Reactions
Understanding Chemical Equilibrium: A Comprehensive Guide
Transition Metals
Unlocking the Wonders of Organic Chemistry: An Introduction
Functions
Introduction to Sequences and Series

DIWAKAR's Textbook Answer Videos

02:56
Chemistry and Chemical Reactivity

Acetic acid, $\mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{H}$, is made industrially by the reaction of methanol and carbon monoxide.
$$\begin{aligned}
\mathrm{CH}_{3} \mathrm{OH}(\ell)+\mathrm{CO}(\mathrm{g}) \rightarrow \mathrm{CH}_{3} \mathrm{CO}_{2} \mathrm{H}(\ell) & \\
\Delta_{r} H^{\circ}=-134.6 \mathrm{kJ} / \mathrm{mol}-\mathrm{rxn}
\end{aligned}$$
What is the enthalpy change for producing $1.00 \mathrm{L}$ of acetic acid $(d=1.044 \mathrm{g} / \mathrm{mL})$ by this reaction?

Chapter 5: Principles of Chemical Reactivity: Energy and Chemical Reactions
Diwakar Mandilwar
04:36
Chemistry and Chemical Reactivity

Calculate $\Delta_{r} H^{\circ}$ for the reaction
$$
2 \mathrm{C}(\mathrm{s})+3 \mathrm{H}_{2}(\mathrm{g})+1 / 2 \mathrm{O}_{2}(\mathrm{g}) \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\ell)
$$
given the information below.
$$
\begin{array}{l}
\mathrm{C}(\mathrm{s})+\mathrm{O}_{2}(\mathrm{g}) \rightarrow \mathrm{CO}_{2}(\mathrm{g}) \quad \Delta_{\mathrm{r}} H^{\circ}=-393.5 \mathrm{kJ} / \mathrm{mol}-\mathrm{rxn} \\
2 \mathrm{H}_{2}(\mathrm{g})+\mathrm{O}_{2}(\mathrm{g}) \rightarrow 2 \mathrm{H}_{2} \mathrm{O}(\ell) \\
\quad \Delta_{\mathrm{r}} H^{\circ}=-571.6 \mathrm{kJ} / \mathrm{mol}-\mathrm{rxn} \\
\mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\ell)+3 \mathrm{O}_{2}(\mathrm{g}) \rightarrow 2 \mathrm{CO}_{2}(\mathrm{g})+3 \mathrm{H}_{2} \mathrm{O}(\ell) \\
\Delta_{\mathrm{r}} H^{\circ}=-1367.5 \mathrm{kJ} / \mathrm{mol}-\mathrm{rxn}
\end{array}
$$

Chapter 5: Principles of Chemical Reactivity: Energy and Chemical Reactions
Diwakar Mandilwar
02:20
Discrete Mathematics

Give an example (different from those of Example 2.1 .2 ) of an axiom in the system of real numbers.

Chapter 2: Proofs
Section 1: Mathematical Systems, Direct Proofs, and Counterexamples
Diwakar Mandilwar
03:14
Discrete Mathematics

Give an example (different from those of Example 2.1 .1 ) of a definition in Euclidean geometry.

Chapter 2: Proofs
Section 1: Mathematical Systems, Direct Proofs, and Counterexamples
Diwakar Mandilwar
02:22
Discrete Mathematics

Give an example (different from those of Example 2.1 .3 ) of a theorem in Euclidean geometry.

Chapter 2: Proofs
Section 1: Mathematical Systems, Direct Proofs, and Counterexamples
Diwakar Mandilwar
1 2 3 4 5 ... 18

DIWAKAR's Quick Ask Videos

07:18
Intro Stats / AP Statistics

A nutrition study investigated knowledge about fruit juices. The study was conducted in a pediatric clinic. Accompanying parents were asked to classify a national brand of "fruit drink", that contains less than 10% fruit juice, as 100% fruit juice, fruit juice mix, or no fruit juice at all. The investigators asked 150 parents. The table contains the results.

Juice Content Gender Female Gender Male Total
100% 15 15 30
1%-99% 55 25 80
0% 30 10 40
Total 100 50 150

What is the value of the chi-square statistic for the test of independence for this table?

Diwakar Mandilwar
02:49
Intro Stats / AP Statistics

The manufacturer of a fertilizer guarantees that, with the aid
of the fertilizer,
75% of planted seeds will germinate. Suppose the manufacturer is
correct. If 10
seeds planted with the fertilizer are randomly selected,
what is the probability that more than 8 of them
germinate?
Carry your intermediate computations to at least four decimal
places, and round your answer to two decimal places.
(If necessary, consult a list of formulas.)

Diwakar Mandilwar
04:29
Intro Stats / AP Statistics

Use the following results from a test for marijuana use,
which is provided by a certain drug testing company. Among
143
subjects with positive test results, there are
26
false positive results; among
150
negative results, there are
3
false negative results. If one of the test subjects is
randomly selected, find the probability that the subject
tested negative or did not use marijuana. (Hint: Construct
a table.)
The probability that a randomly selected subject tested negative
or did not use marijuana is _____?
(Do not round until the final answer. Then round to three
decimal places as needed.)

Diwakar Mandilwar
04:21
Calculus 1 / AB

Water is being poured into a conical container at the rate of 3
cubic feet per second. The container has a radius of 5 feet
aat the top and a height of 15 feet; radius and height of the
water in the cone keep in that same proportion. At what rate
is the depth of the water increasing when the water surface reaches
2 feet depth?
ANSWER: "The water level is increasing / decreasing at a
rate of ..." (Units)

Diwakar Mandilwar
04:35
Intro Stats / AP Statistics

Two percent of all electronic appliances manufactured by a large
electronic company are defective. A quality control inspector
randomly selects 15 samples from the production line,
find:
a) the probability that one of the appliances is
defective.
b) less than two appliances are defective.

Diwakar Mandilwar
06:15
Intro Stats / AP Statistics

A test for a disease has a false positive rate of 5% and a false
negative rate of 2%. Suppose that 1% of the population have the
disease. Let P be an event that the test is positive and D be an
event that the person has the disease.
a) What is the probability that a test is negative?
b) What is the conditional probability that the person has the
disease, given that the test is negative?
c) What is the probability that the test is wrong?

Diwakar Mandilwar
1 2 3 4 5 ... 111