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Which statements about dilute sulfuric acid are correct?1. 1. It turns red litmus paper blue. 2. It reacts with magnesium(II) oxide to form magnesium(II) sulfate and water. 3. It reacts with magnesium to form magnesium(II) sulfate and carbon dioxide. 4. Its pH is below pH 7
Average Senior High School annual cost of tuition fee for all private schools last year was Php43,700. A random sample of costs this year for 45 private schools indicated that the sample mean was Php45,800 and a sample standard deviation was Php5,600. At 0.01 level of significance, is there sufficient evidence to conclude that the cost increased?
Identify the conjugate base and conjugate acids of each acid and bases
1. HOCl
4. F-
2. H2PO4-
5. HCO3-
3. H2O
6. H2O
. Calculate the following buffer solution using the Henderson-Hasselbalch equation.
1. Calculate the pH of the buffer solution that contain 0.20 M HOCl (Ka= 4.0 x 10-8) and 0.10 M HCl.
2. What is the pH of a buffer solution that contains 0.50 M CH3CO3H (Ka = 1.8 x 10-5 ) and 0.02 M
H2CO3?
A solution is prepared by dissolving 150 ml of isopropyl alcohol in enough water to produce 1.5 ml of rubbing solution.
A. What is the volume percent of alcohol in the solution?
B. What is the proof of the solution?
The objectives of virtually all tax systems can be classified into two broad categories namely Revenue and Non-Revenue goals.
Some of the non-revenue goals incorporated in our current tax regime include Stabilization Function, Economic Growth Function, Redistribution of Income Function, and Allocation Function.
Critically assess the contribution of the above policies in safeguarding the micro and macro-economic objectives of a nation.
Balance the equation below:
1. H₂S + NHO₃ S + NO+ H₂O
I'm really fond of even numbers, you know? That's why I'll be letting you make another even number problem yet again. This time, you need to print from a range of two inputted numbers, n1 and n2 (inclusive), all the even numbers from n2 down to n1, in descending order.
Determine which element is oxidized and which element is reduced in reactions below (be sure to include the oxidation state of each):
CO32- + 2H+→CO2 + H2O
Determine the Oxidation State of the highlighted element below.
H₂ PO₄-
Solution:
