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Raman S

Numerade Educator

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Numerade tutor for 4 years

214 Students Helped

Raman's Quick Ask Videos

02:10

Chemistry 101

A reaction has a rate law of Rate = (1.25 M⁻²s⁻¹)[A][B]². What concentration of [B] would give the reaction a rate of 0.0669 M⁻¹s⁻¹ if the concentration of [A] is 0.250 M?

05:07

Chemistry 101

In a study designed to prepare new gasoline-resistant coatings a
polymer chemist dissolves 6.053 g of poly(vinyl alcohol) in enough
water to make 100.0 mL of solution. At 25°C, the osmotic pressure
of this solution is 0.272 atm. What is the molar mass of the
polymer sample? Enter your answer in scientific notation.

01:57

Chemistry 101

We have 200 mL of 25% SDS and need to make a 450 mL solution with a concentration of 0.5%. The molecular weight of SDS is 288.378. Therefore, ____ mL of stock was added to ____ mL of diluent.

01:55

Chemistry 101

If the density of cod liver oil is 0.920 g/mL.: what is the volume occupied by 10.7 g of cod liver oil?

02:47

Chemistry 101

How many formula units make up 24.8 g of magnesium chloride
(MgCl2)? Express the number of formula units numerically.

02:24

Chemistry 101

What structural feature would be required for a lewis base

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