Answer:
water molecule...glucose..chloroplast...cell...leaf
An element is a substance that can not be broken down in simpler substances by chemical means. A compound is a substance that contains two or more substances that are chemically combined in a definite and fixed proportion by mass. A mixture is a combination of two or more substances which are not chemically combined. Mouthwash is an example of homogeneous mixture.
How to figure out the normality/equivalent weight/equivalents of chemicals in a balanced equation? (assuming necessary data given)
Answer: First we have to understand that the normality of a solution is the gram equivalent weight of a solute per liter of solution. To find it we simply will have to have the necessary data to see the balanced equation.
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Explanation:
Since pressure remained constant, we can eliminate P from the equation
Doing some algebra and converting temperature to Kevin by adding 273, you should obtain the same result.
HCl is a strong base therefore it completely dissociates to H⁺ and Cl⁻ ions.
To calculate pH we need to know [H⁺]
number of HCl moles in 50.0 mL - 0.200 M /1000 mL/L x 50.0 mL = 0.01 mol
concentration of HCl - 0.01 mol/0.1 L = 0.1 M
[HCl] = [H⁺] due to complete dissociation
pH = -log [H⁺]
pH = -log (0.1 M)
pH = 1
pH of the solution is 1