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ratelena [41]
3 years ago
15

Hey can u help me with my hw? I’ll send a pic.

Chemistry
1 answer:
Aleonysh [2.5K]3 years ago
3 0
Maybe I guess if I know how
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A student requires 2.00 L of 0.100 M NH4NO3 from a 1.75 M NH4NO3 stock solution. What is the correct way to get the solution?
Sonbull [250]

Answer: Measure 114 mL of the 1.75 M solution, and dilute it to 2.00 L.

Explanation:

The number of moles in the solution will remain same on dilution and thus according to Molarity Equation:

M_1V_1=M_2V_2

M_1= molarity of first solution

V_1= Volume of first solution

M_2= molarity of second solution

V_2= Volume of second solution

0.1\times 2.00L=1.75M\times V_2

V_2=0.114L=114ml

Thus 114 ml of 1.75 M solution is taken and the volume is diluted to 2.0 L to make 0.100 M solution.










3 0
3 years ago
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How was potassium discovered?​
BaLLatris [955]

Answer:

Potassium was the first metal to be isolated by electrolysis. It was discovered by the  English chemist Sir Humphry Davy by decomposing molten potassium hydroxide (KOH) with a voltaic battery.

Explanation:

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3 years ago
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Which of the following is an inorganic compound?
Mnenie [13.5K]
<span>H2O water molecule is inorganic. Organic molecules contains carbon atom. Pentane, Butane, and Glucose have carbon in their molecules. Water is inorganic it contains hydrogen and oxygen. there is no carbon molecule. Carbohydrates, lipids etc are examples of organic molecules.</span>
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Chelsi has talked to her artist friends about how much money they earn each year from working in the arts. She gathers these val
Citrus2011 [14]

Answer:

The median would be 6700

Explanation:

Arrange data values from lowest to highest value

The median is the data value in the middle of the set

.

Ordering a data set x1 ≤ x2 ≤ x3 ≤ ... ≤ xn from lowest to highest value, the median x˜ is the data point separating the upper half of the data values from the lower half.

If the size of the data set n is odd the median is the value at position p where

Formula for the median

p=n+12

x˜=xp

If n is even the median is the average of the values at positions p and p + 1 where

p=n2

x˜=xp+xp+12

If there are 2 data values in the middle the median is the mean of those 2 values.

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3 years ago
After sugar dissolves in water, the sugar is no
katrin [286]

Answer:

Because it devolved

Explanation:

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