01/23/19

A medicine is to be administered at a dosage of 75 micrograms per kg of body mass once every six hours. How many mg of the medicine must be administered to a 110 kg patient each day?

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01/23/19

Ideal Gas Equation Problem 4

Consider the equation: 4 NH3(g) + 5 O2(g)= 4 NO(g) + 6 H2O(g)At a constant temperature and pressure, what is the maximum volume, in liters, of NO that can be made from 3.0 L or NH3 and 3.0 L of O2?
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01/21/19

What is it called when you define a word using each letter of that word
What is it called when you define/describe a word by taking the letters of that word & making phrases/ descriptions in sequential order, such as CAN: Capable, Able, Now available to... more
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01/21/19

Stoichiometry help
How many grams of copper react to give 1.80 g of Ag?Cu(s)+2AgNO3(aq)→Cu(NO3)2(aq)+2Ag(s)Express your answer with the appropriate units.
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01/21/19

Chemistry help on homework
How many grams of oxygen gas react to give 2.00 g of ZnO?2Zn(s)+O2(g)⟶Δ2ZnO(s)Express your answer with the appropriate units.
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01/21/19

For the experiment measuring concentration of BSA using spectrophotometry, the blank will include which of the following?
For the experiment measuring concentration of BSA using spectrophotometry, the blank will include which of the following? (can choose multiple answer) 1)bradford reagent 2) BSA stock 3)NaCl 4) cell... more
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01/21/19

The substances on the right of the equation are called the product.
Is this statement true or false?
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01/20/19

Compared to any other country today, China has the most what?
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01/20/19

Basic Chemistry
Calculate the heat energy released when 28.6 g of liquid mercury at 25.00 c is converted to solid mercury at its melting point.
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01/19/19

Calculate the initial mass of A given that 2.77g of A remains after 1.66min
The rate constant for this first order reaction is 0.0176s^-1 at 300 degrees C
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01/19/19

Calculate to the Correct Number of Significant Figures
A metal has a mass of 40.000g. When the solid is placed in a graduated cylinder containing 20.0 mL of water, the water level rises to 30.5 mL. Calculate the density of the metal to the correct... more
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01/18/19

What is the effect of increasing the temperature of HCl on the amount of CO2 produced? (When HCl reacts with CaCO3)
Hello! I’m a grade 11 chemistry student and I recently did this experiment, each time I did it, I increased the temperature of HCl. And the more the temperature of HCl increased, the less amount of... more
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01/18/19

Daughter cells formed by meiosis are identical to each other and to the parents cell.

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01/18/19

what would the width and length be for 900 square ft?
I am trying to figure out the width and lengthbof a 900 suarefoot classroom
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01/18/19

how would this be written out
21 more than 3 times y Write the phrase as a mathematical expression.
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01/18/19

What is. Decrease 64 by one fifth

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01/18/19

One cubic foot holds 7.48 gallons of water and one gallon of water is 8.33 pounds.How much does 6.1 cubic ft of water weigh in pounds ? In tons ?
(Round to the nearest 10 as needed )
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01/18/19

Chem laws gasses

A gas at 480 K occupies 6.50L at a pressure of 355kPa What will its pressure be at 251K if its volume is reduced to 4.80 L
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01/18/19

How much water do you need to add to a 100 ML bottle of Amoxicillin Suspension 250MG/5ML?
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01/17/19

Neutralising a puffersolution.
If you add 20 mL 0.100M NaOH to 100 mL of puffersolution, which consists of NH_3 and NH_4Cl, both with the same molar concentrtion 0.050M. What is the pH change?
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01/17/19

what is c in the equation 2(c + 10)= 4(c + 20)
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01/17/19

Given the relation ship"6 arms for every 4 eyes" If there are 12 eyes, how many arms are there?
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01/17/19

When can cause-and-effect determinations be made in psychological research?
When descriptive research is usedWhen correlational research techniques are usedWhen a true experiment is conductedIn all psychological research
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01/17/19

what is 4 ft to 68 in.
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01/17/19

We need to make 10 grams of NaCl, How many moles of HCl should we start with? How many moles of sodium sulfate do we need to start with?
given the equation Na2SO4 + 2HCl → H2SO4 + 2NaCl we need to make 10 grams of NaCl. How many moles of HCl should we start with? How many moles of sodium sulfate do we need to start with?
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