08/15/17

quotient of 45 and 3 6/7
i need help on a math problem
Follows • 3
Expert Answers •2

08/15/17

States of matter grams law of diffusion
States of matter's GRAMS LAWS OF DIFFUSION  asked in class but didn't get the best way to get the answer of this questionThe pressure of bulb dropped from 2000 to 1500 mm HG in 47 min when... more
Follows • 2
Expert Answers •1

08/15/17

need to solve this question with calculations
out of 24 hours in a day, mariyam spends one fourth of the time in school, one third of the time in sleeping, one tenth of the time in watching television and another one tenth playing. the... more
Follows • 2
Expert Answers •1

08/14/17

C + O2 ⟶ CO2 Calculate the enthalpy for the equation above.
I  don't understand enthalpy? could someone help
Follows • 3
Expert Answers •2

08/14/17

A 355 mL Dr. Pepper contains 0.15 moles of sugar. What is the molarity of the Dr. Pepper
I really need help on this problem
Follows • 2
Expert Answers •1

08/14/17

If 4.20 m of cotton costs 35 € hoe much does 3m cost?
Hi so help me with tgis math problem thanks.
Follows • 2
Expert Answers •1

08/14/17

What three conversion factors and in what order would you use them to convert the mass of a compound into atoms of a articular element in that compound-- for e
What three conversion factors and in what order would you use them to convert the mass of a compound into atoms of a articular element in that compound-- for example, from 1.00 g aspirin (C9H8O4)... more
Follows • 3
Expert Answers •2

08/14/17

Using the balanced equation 6SO2+6O2=6SO3+3O2 if 96.0 g of SO2 reacts with 32.0 g O2 what mass of the product will form?
  Using the balanced equation 6SO2+6O2=6SO3+3O2 if 96.0 g of SO2 reacts with 32.0 g O2 what mass of the product will form? 
Follows • 2
Expert Answers •1

08/13/17

You require 1.2 Kilograms Calcium Carbonate per cubic metre your growing media you going supply using lime which 40% Calcium Carbonate how much lime you need
Chemistry question You require 1.2 Kilograms of Calcium Carbonate per cubic metre for your growing media and you are going to supply this using limre which has 40% Calcium Carbonate how much lime... more
Follows • 2
Expert Answers •1

08/12/17

KOH with a mass of 50.0 grams is neutralized by 20.0 g of sulfuric acid. The products are potassium sulfate and water
I need to know what formula to use and how to calculate the moles of potassium sulfate produced and the grams of water produced 
Follows • 3
Expert Answers •2

08/12/17

A certain element has a half life of 2.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 55% of the origina
A certain element has a half life of 2.5 billion years. a. You find a rock containing a mixture of the element and lead. You determine that 55% of the original element remains; the other 45%... more
Follows • 3
Expert Answers •2

08/11/17

Iupac of COOH-CH2-C(COOH)(OH)-CH2-COOH
Answer in the book was 3-carboxy-3-hydroxypentanedicarboxylic acid
Follows • 2
Expert Answers •1

08/11/17

Twice a number is added to the number and the answer is 80. Write an equation to solve this problem.
Twice a number is added to the number and the answer is 80. Write an equation to solve this problem.  
Follows • 2
Expert Answers •1

08/11/17

750mmHg 0f 30cm3 of a gas at 300c is passed through a tube. If the pressure of the gas at the end of this 530mmHg and the gas, find the new volume at 300c
750mmHg 0f 30cm3 of a gas at 300c is passed through a tube. If the pressure of the gas at the end of this 530mmHg and the gas, find the new volume at 300c  
Follows • 2
Expert Answers •1

08/10/17

If 55.5 moles of an ideal gas occupies 35.5 liters at 375 K, what is the pressure of the gas?
gas laws, conversion factors
Follows • 3
Expert Answers •2

08/10/17

The length of a rectangle is 1 m more than twice the width, and the area of the rectangle is 66 m2 . Find the dimensions of the rectangle.
The length of a rectangle is 1 mmore than twice the width, and the area of the rectangle is 66 m2. Find the dimensions of the rectangle.
Follows • 3
Expert Answers •2

08/09/17

Sodium benzoate in carbonated beverages
Sodium benzoate is a common food preservative and can be commonly found in the ingredient list of carbonated beverages. Carbonated beverages also contain phosphoric acid and are highly acidic.... more
Follows • 3
Expert Answers •2

08/09/17

Write a balanced equation
What would be the balanced equation for the synthesis of benzoic acid using the Gignard reagent, phenylmagnesium bromide? 
Follows • 3
Expert Answers •2

08/08/17

See Below For details
A 0.972 g sample of CaCl2-2H2O and K2C2O4-H2O solid salt mixture is dissolved in 150 mL of deionized water, previously adjusted to a pH that is basic. The precipitate, after having been filtered... more
Follows • 2
Expert Answers •1

08/08/17

Determining the state of matter in reaction formula in room tempetature
How do I know ( or assume ) the compounds state of matter in a chemical reaction equation?   I get that Ionic and Metallic bond will tend to be in a solid shape on room temperature, though I... more
Follows • 2
Expert Answers •1

08/07/17

how many feet ar sin 440 yards solve by dimensional analysis
it needs to be solved with dimensional analysis 
Follows • 2
Expert Answers •2

08/07/17

P = 2L + 2W solve for P, if L = 4 and W = 12 What is the answer?
What steps do I take to solve this and how do I check my answer?
Follows • 2
Expert Answers •1

08/07/17

What will happen if a soap bubble is given excess of negative charge
Will its radius inc or dec or remain same  
Follows • 2
Expert Answers •1

08/07/17

Not understanding how to set up
You need a 90% alcohol solution. On hand, you have a 25 mL of a 30% alcohol mixture. You also have 95% alcohol mixture. How much of the 95% mixture will you need to add to obtain the desired solution? more
Follows • 4
Expert Answers •3

08/06/17

how to calculat temporary hardness water and permanent hardness of water and total hardness and normality can anyone help me to find solution
how to find hardness of water and normality in calculation
Follows • 2
Expert Answers •1

Still looking for help? Get the right answer, fast.

Ask a question for free

Get a free answer to a quick problem.
Most questions answered within 4 hours.

OR

Find an Online Tutor Now

Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.