SAT 2化學(xué)考試的題型不多,在最基本的SAT2化學(xué)題型中,多項(xiàng)選擇題是考生比較頭痛的一類。下面為大家介紹一些這個(gè)SAT2化學(xué)題型的相關(guān)信息,供大家參考和借鑒,希望對(duì)大家有所幫助。
SAT 2化學(xué)基本題型之多項(xiàng)選擇題(General multiple-choice question in Part C)
這個(gè)SAT2化學(xué)題型通常為問(wèn)題或者不完整表述,帶有五個(gè)備選答案,你必須從中選出答案。在有些題目中,要求選出不恰當(dāng)?shù)拇鸢?。這種問(wèn)題包括大寫的單詞,例如NOT, LEAST, EXCEPT。
在有的問(wèn)題中,會(huì)要求在圖片,圖表,數(shù)學(xué)表達(dá)式和文字表述之間建立聯(lián)系。解決方法包括對(duì)已知信息的正確解讀來(lái)解決科學(xué)問(wèn)題。有時(shí)同一信息可以用來(lái)解答兩個(gè)或更多的問(wèn)題。
PART C
Direction: Every question or incomplete statement below is followed by five suggested answers or completions. Choose the one that is best in each case and then fill in the corresponding oval on answer sheet.
說(shuō)明:下面的每個(gè)問(wèn)題或不完整表述都帶有五個(gè)備選答案。選出答案并填寫在答題紙的相應(yīng)位置上。
EXAMPLE:
If the molar mass of NH 3 is 17g/mol, what is the density of this compound at STP?
1. 0.25g/L 2. 0.76g/L 3. 1.25g/L 4. 3.04g/L 5. 9.11g/L
The solution of this quantitative problem depends on the application of several principles. One principle is that the molar mass of a gas expressed in grams/mole will occupy 22.4L at standard temperature and pressure (STP). The other is that the density of a gas at STP is the mass of 1L of the gas. Therefore, 17g of ammonia (NH 3) will occupy 22..4L, and 1L is equal to 17g/22.4L or 0.76g/L. The correct answer is (B).
如果(NH 3)的分子質(zhì)量是17g/mol, 在標(biāo)準(zhǔn)狀況下這種化合物的密度是多少?
1. 0.25g/L 2. 0.76g/L 3. 1.25g/L 4. 3.04g/L 5. 9.11g/L
這個(gè)定量問(wèn)題的解決需要運(yùn)用幾個(gè)原理。其中之一是在標(biāo)準(zhǔn)狀況下(STP)一摩爾氣體所占的體積是22.4升。另一原理是在STP氣體的密度為1L氣體的質(zhì)量。因此,1mol氨氣的體積為22.4升,1L質(zhì)量就是17/22.4 g或者0.76 g。正確答案為(B)。
以上就是關(guān)于SAT 2化學(xué)基本題型中關(guān)于多項(xiàng)選擇題的介紹,包括了對(duì)題目的組成和特點(diǎn)的解析,后面附有典型的例題。大家在備考SAT2化學(xué)考試的時(shí)候,可以對(duì)上面的信息進(jìn)行適當(dāng)?shù)膮⒖己途毩?xí)。
SAT 2化學(xué)基本題型之多項(xiàng)選擇題(General multiple-choice question in Part C)
這個(gè)SAT2化學(xué)題型通常為問(wèn)題或者不完整表述,帶有五個(gè)備選答案,你必須從中選出答案。在有些題目中,要求選出不恰當(dāng)?shù)拇鸢?。這種問(wèn)題包括大寫的單詞,例如NOT, LEAST, EXCEPT。
在有的問(wèn)題中,會(huì)要求在圖片,圖表,數(shù)學(xué)表達(dá)式和文字表述之間建立聯(lián)系。解決方法包括對(duì)已知信息的正確解讀來(lái)解決科學(xué)問(wèn)題。有時(shí)同一信息可以用來(lái)解答兩個(gè)或更多的問(wèn)題。
PART C
Direction: Every question or incomplete statement below is followed by five suggested answers or completions. Choose the one that is best in each case and then fill in the corresponding oval on answer sheet.
說(shuō)明:下面的每個(gè)問(wèn)題或不完整表述都帶有五個(gè)備選答案。選出答案并填寫在答題紙的相應(yīng)位置上。
EXAMPLE:
If the molar mass of NH 3 is 17g/mol, what is the density of this compound at STP?
1. 0.25g/L 2. 0.76g/L 3. 1.25g/L 4. 3.04g/L 5. 9.11g/L
The solution of this quantitative problem depends on the application of several principles. One principle is that the molar mass of a gas expressed in grams/mole will occupy 22.4L at standard temperature and pressure (STP). The other is that the density of a gas at STP is the mass of 1L of the gas. Therefore, 17g of ammonia (NH 3) will occupy 22..4L, and 1L is equal to 17g/22.4L or 0.76g/L. The correct answer is (B).
如果(NH 3)的分子質(zhì)量是17g/mol, 在標(biāo)準(zhǔn)狀況下這種化合物的密度是多少?
1. 0.25g/L 2. 0.76g/L 3. 1.25g/L 4. 3.04g/L 5. 9.11g/L
這個(gè)定量問(wèn)題的解決需要運(yùn)用幾個(gè)原理。其中之一是在標(biāo)準(zhǔn)狀況下(STP)一摩爾氣體所占的體積是22.4升。另一原理是在STP氣體的密度為1L氣體的質(zhì)量。因此,1mol氨氣的體積為22.4升,1L質(zhì)量就是17/22.4 g或者0.76 g。正確答案為(B)。
以上就是關(guān)于SAT 2化學(xué)基本題型中關(guān)于多項(xiàng)選擇題的介紹,包括了對(duì)題目的組成和特點(diǎn)的解析,后面附有典型的例題。大家在備考SAT2化學(xué)考試的時(shí)候,可以對(duì)上面的信息進(jìn)行適當(dāng)?shù)膮⒖己途毩?xí)。