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20mL of an HCl solution is required for neutralization of 10mL 0.1M Na2CO3 solution.
Calculate the strength of the HCl acid.
15mL of 0.02M Na2SO3 solution react complete with 10 mL of copper solution.
Calculate the amount of Cu2+ ion 10 mL solution and per liter of solution.
A. Provide formal of the validly of each of the following arguments.
- I shall either play basketball or i shall go to the mall and watch the movie. therefore i shall either play basketball or go to a mall.
- the Chocolate hills are not chocolate if I'm not the president of the Philippines. I'm not the president of the Philippines. therefore the Chocolate hills are chocolates.
- if the summer is hot when we won't go on vocation in may. we'll either go on vacation inmay or we'll buy a boat (perhaps both). therefore, if the summer is hot, we'll buy a boat.
- if Anna encore or write a program, she get an a. she's encoding and reading her lessons. therefore she'll get an A.
Nestle Frozen Yogurt shops have enjoyed rapid growth in Karachi in recent years. From the analysis of Nestle various outlets, it was found that the demand curve follows this pattern.
Q= 200 – 100P + 120i + 32T -250 Ac + 400 AN
Where
Q= Number of cups served per week
P= Average price paid for each cup
i= Per capita income in the given market (thousands)
T= Average outdoor temperature
Ac= Competition’s monthly advertising expenditures (thousands)
AN = Nestle own monthly advertising expenditure (thousands)
What is the solution for the recurrence relation a_n=2a_{n−1}−1
an
=2an−1
−1 with a_1=3
a1
=3 .
A. Four coins are tossed. Let X be the random variable representing the number of heads that occur. Find the values of the random variable X.
In building an arena, steel bars with a mean ultimate tensile strength of 400 megapascal (MPa) with a variance of 81 MPa were delivered by the manufacturer. The project engineer tested 50 steel bars and found out that the mean ultimate strenght is 390 MPa. The decision for the extension of the contract with the manufacturer depends on the engineer. Test the hypothesis whether there is no significant difference between the two means using a two - tailed with a = 0.01
Use the balanced equation to answer the following question. One Pansit has a
mass of 5.0 grams and one Siling Labuyo has a mass of 1.0 gram. How many
Hot Pansit can be made from 40.0 grams of Pansit and 26.0 grams of Siling
Labuyo?
A PURE SAMPLE OF SODIOUM FLORIDE CONTAINS 35g of sodium. how many grams of fluorine are present in this sample.
The average pre-school cost for tuition fees last year was Php. 17,250. The following year 20 institutions had a sample mean of Php. 16,150 and a standard deviation of Php. 2,250. At 0.90 level of confidence is there sufficient evidence to conclude that the mean cost has increased?
